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  * Meeting time: 13:00-13:30 JST/KST on every Monday
  * Meeting room: Zoom		   * Meeting time: 11:00-11:30 JST/KST on every Wednesday
  * Meeting room: Zoom3
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=== 20221109 (Wed.) ===
 * Agenda
   * Announcement
    * next f2f meeting : Nov. 30(Wed) ~ Dec. 1 (Thu) [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2022December|wiki]]
     * hybrid style, Kashiwa campus in person and remote on zoom
     * registration deadline : Nov. 11 (Fri)
    * LVK meeting : 13 to 16 March 2023 @ Northwestern University, IL, USA
    * JPS meeting : 22 to 25 March 2023 @ Online style
     * registration : Nov. 15 ~ Dec. 1
   * KAGRA commissioning reports (Yokozawa) [[KAGRA/Subgroups/DET/Meeting/221108|Commissioning221108]]
    * noise budget tool is available [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22627|klog#22627]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
   * DQR update (Yuzurihara)
    * The code review will start [[https://git.ligo.org/detchar/data-quality-report/-/wikis/O4-DQR-review-page|wiki]]
    * Firstly, the infra tools will be reviewed. Invitation to join from KAGRA detchar members
   * Update contents of summary page (Oshino)
    * SummaryPage trouble: process was stopped from 11/1 22:00 UTC [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22771|klog#22771]]
    * SummaryPage trouble: process was stopped from 11/2 23:00 UTC [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22785|klog#22785]]
    * SummaryPage trouble: process was stopped from 11/6 5:00 UTC [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22815|klog#22815]]
   * Combine DET computer resources into one DET cluster at Kamioka site
   * Noise hunting by machine learning and Hveto (Kyujin/Kihyun)
    * plan to present poster at [[https://www.gwpaw2022.org|GWPAW 2022]]
    * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14221|poster]]
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)
    * Uchikata-san and Narikawa-san are staying KAGRA site to work on these tasks. They will have a brief report.

 * Minutes

-----
=== 20221102 (Wed.) ===
 * We cancel the meeting

-----
=== 20221026 (Wed.) ===
 * Agenda
   * Announcement
    * next f2f meeting : Nov. 30(Wed) ~ Dec. 1 (Thu) [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2022December|wiki]]
     * hybrid style, Kashiwa campus in person and remote on zoom
     * registration deadline : Nov. 11 (Fri)
    * next LVK meeting : 13 to 16 March 2023 @ Northwestern University, IL, USA
    * next week meeting will be canceled.
   * KAGRA commissioning reports

-----
=== 20241225 (Wed.) ===
 * Agenda
   * Announcement
    * O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(12/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda241219|operation (12/19)]]
    * Scheduled conference
     * LVK meeting: 2024/03/24-27 @Albert Park, Melbourne, Australia
     * GWADW 2025: 2024/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
     * Amaldi & GR: 2024/07/14-18 @Scottish Exhibition Centre, Glasgow, UK [[https://iop.eventsair.com/gr24-amaldi16/|web]]
     * ICRC 2025: 2024/07/15-24 @Geneva (Switzerland) [[https://indico.cern.ch/e/icrc2025|web]]
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0162/L2416243/001/KAGRAReport_20241211.pdf|12/11]]
    * The chairs finished the input of FTE of KAGRA detchar in OpsDiv White Paper. [[https://git.ligo.org/operations/operations-white-paper|git]]
    * Selection of KAGRA detchar chair
    * Migration from gw-astronomy (see Takahashi-san's mail) by '''Dec 18'''
    * KAGRA Instrument Science White Paper 2024 [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=16182|draft]]
    * Next meeting: 2025/01/08
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * lock loss study in the commissioning (YamaT, Yuzurihara) [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/lockloss_o4b_break.html|web]]
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * Commissioning support
      * Recovery of Noise Budget page on SummaryPage [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32068|klog]]
      * Violin modes moving [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32060|klog]]
      * Comment to Helper guardian for lockloss check [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32036|klog]]
      * lockloss investigartion report [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31912|klog]]
     * Pastavi noise budget for the theoretical noise data based on Komori-san's simulation code [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31984|klog]]
     * Scattering light noise report (11/26) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31911|klog]] [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16289|poster]]

 
-----
=== 20241204 (Wed.) ===
 * Agenda
   * Announcement
    * O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(11/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda241114|operation (11/14)]]
    * Scheduled conference
     * JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) [[https://sites.google.com/view/jgrg33|web]]
     * KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2024December|wiki]]
     * LVK meeting: 2024/03/24-27 @Albert Park, Melbourne, Australia
     * GWADW 2025: 2024/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
     * Amaldi & GR: 2024/07/14-18 @Scottish Exhibition Centre, Glasgow, UK [[https://iop.eventsair.com/gr24-amaldi16/|web]]
     * ICRC 2025: 2024/07/15-24 @Geneva (Switzerland) [[https://indico.cern.ch/e/icrc2025|web]]
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0162/L2416204/001/KAGRAReport_20241127.pdf|11/27]]
    * An update of the OpsDiv White Paper is underway. The update of the part related to KAGRA DetChar was finished.
    * Selection of KAGRA detchar chair
    * Migration from gw-astronomy (see Takahashi-san's mail) by '''Dec 18'''
    * KAGRA Instrument Science White Paper 2024 [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=16182|draft]]
    * Next meeting:
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * lock loss study in the commissioning (YamaT, Yuzurihara) [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/lockloss_o4b_break.html|web]]
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * Commissioning support
      * Changed configuration files of DET tools [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31754|klog]]
      * DET report on 11/25 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31773|klog]]
     * Pastavi
      * Pastavi update: Noise budget mode came back online [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31875|klog]]
     * Update segment lists and cache files during power outage [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31701|klog]]

-----
=== 20241127 (Wed.) ===
 * The meeting was canceled due to the onsite recovery work from the earthquake (11/26 22:47 JST).

-----
=== 20241120 (Wed.) ===
 * Agenda
   * Announcement
    * O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(11/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda241114|operation (11/14)]]
    * Scheduled conference
     * JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) [[https://sites.google.com/view/jgrg33|web]]
     * KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2024December|wiki]]
     * LVK meeting: 2024/03/24-27 @Albert Park, Melbourne, Australia
     * GWADW 2025: 2024/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
     * KIW12: 2024/05/26~27 @Shanghai, China
     * Amaldi & GR: 2024/07/14-18 @Scottish Exhibition Centre, Glasgow, UK [[https://iop.eventsair.com/gr24-amaldi16/|web]]
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0161/L2416170/001/KAGRAReport_20241113.pdf|11/13]]
    * Update of OpsDiv White Paper is underway. The update of part related to KAGRA DetChar was finished.
    * Selection of KAGRA detchar chair
    * Power outage in Kashiwa campus
     * KAGRA Main Data Server was down. Now the system-B is online.
    * Migration from gw-astronomy (see Takahashi-san's mail) by '''Dec 18'''
    * Next meeting: November 27
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * lock loss study in the commissioning (YamaT, Yuzurihara) [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/lockloss_o4b_break.html|web]]
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * Commissioning support
       * lockloss study (2024 Nov 11 01:44:32JST) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31617|klog]]
       * Lockloss study 2024-11-07 19:59:15 UTC [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31630|klog]]
     * Summary page update
       * Added Low Noise state [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31632]]


-----
=== 20241113 (Wed.) ===
 * Agenda
   * Announcement
    * O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(10/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda241031|operation (10/31)]]
    * Scheduled conference
     * JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) [[https://sites.google.com/view/jgrg33|web]]
     * KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2024December|wiki]]
     * GWADW 2025: 2024/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0161/L2416113/001/KAGRAReport_20241101.pdf|11/01]]
    * Update of OpsDiv White Paper is underway. The update of part related to KAGRA DetChar was finished.
    * Selection of KAGRA detchar chair
    * Regeneration of the Aggregated Data Set for KAGRA O4a Period
    * Power outage in Kashiwa campus
     * KAGRA Main Data Server was down. Now the system-B is online.
    * Next meeting: November 20 13:00 JST (usual meeting + presentation by Syifa)
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * lock loss study in the commissioning (YamaT, Yuzurihara) [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/lockloss_o4b_break.html|web]]
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * Commissioning support
      * Labeling the lockloss by the ETMY oplev glitch [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31517|klog]]
      * Lockloss during weekend [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31572|klog]]
      * Lockloss investigation: 2024/11/04 23:29:09 JST [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31515|klog]]
      * Automation of lockloss by ETMY oplev glitch [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/lockloss_o4b_break.html|web]]
     * Summary page
      * Tested new version of SummaryPage on test server [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31462|klog]]
      * Restart Omicron process [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31553|klog]]
      * Restart Hveto process [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31554|klog]]
      * Trial to run the summary page on detchar cluster [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31566|klog]]
      * Restart Fscan process [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31568|klog]]
      * Is it earsy to treat changing IP address of the computer node? --> Probably easy
     * Line noise investigation
      * Violin modes moving [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31594|klog]]
      * Sideband around lines appear [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31593|klog]]
      * What is the definition of segment bar? --> K1:GRD-IFO_STATE_N == 100. It's better to use >= 100.
     * Scattered light noise
      * Analysis of the recent commissioning data by Shih-Hong Hsu [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16166|slide]]
      * The origin of the scattered light noise was not changed during 10/7 14:00~21:00 UTC, because the frequency was same.
      * Coherence-spectrogram will be new window to investigate the scattered light noise. This time, they checked the coherence between DARM and PRCL and between DARM and MICH.

-----
=== 20241106 (Wed.) ===
 * Agenda
   * Announcement
    * O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(10/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda241031|operation (10/31)]]
    * Scheduled conference
     * JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) [[https://sites.google.com/view/jgrg33|web]]
     * KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0161/L2416113/001/KAGRAReport_20241101.pdf|11/01]]
    * Update of OpsDiv White Paper is underway.
    * Chair of KAGRA OpsDiv and selection of KAGRA detchar chair
    * Next meeting: November 13
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * lock loss study in the commissioning (YamaT, Yuzurihara) [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/lockloss_o4b_break.html|web]]
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * Commissioning support
      * lockloss investigation: 2024/11/05 09:51~10:46 JST [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31499|klog]]
      * lockloss investigation for Unknown Lockloss list (nightly observing) 2024/10/16 22:13:41 JST [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31502|klog]]
     * Summary page
      * Tested new version of SummaryPage on test server[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31462|klog]]


-----
=== 20241030 (Wed.) ===
 * Agenda
   * Announcement
    * O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(10/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda241017|operation (10/17)]]
    * Scheduled conference
     * JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) [[https://sites.google.com/view/jgrg33|web]]
     * KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0160/L2416086/001/KAGRAReport_20241018.pdf|10/18]]
    * Update of OpsDiv White Paper is underway.
    * Next meeting: November 6
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * lock loss study in the commissioning (YamaT, Yuzurihara) [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/lockloss_o4b_break.html|web]]
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * Commissioning support
      * lockloss investigation: 2024/10/29 2024-10-29 08:38:10 JST [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31451|klog]]
     * Summary page
      * Tested new version of SummaryPage [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31462|klog]]
      * Due to a lack of memory in the computer, the process failed. Except for that, the process seems to be working well.
      * Modified the unit for IMC cavity noise on the SummaryPage [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31411|klog]]
     * Pastavi
      * Pastavi update: added the button for channels related to ASC or VIS oplevs [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31453|klog]]
     * Update from Kyujin
      * Syifa is preparing the defense of the master thesis. The defense is planned for December 4th.
      * It's better to give a brief presentation on the coming detchar meeting. After the defense, she will give a (poster) presentation at the coming f2f meeting.
     * Related to segment files (Uchikata, Narikawa)
      * They started the preparation of the veto definer file for O4a data, with GuoChin's help.
     * Line noise investigation
      * Takahiro S Yamamoto gave a presentation on the monitor tool development [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16108|slide]] [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15768|memo]]
      * The next task is to make the monitor to generate the plots and HTML automatically and put the attractive name of the monitor.
     * Scattered light noise
      * Shih-Hong, Hsu gave a presentation on the identification of the frequency. [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16109|slide]]
      * When they generate the Q-transform plot, the script can identify the frequency of the scatter object.
      * During 2024/10/07 14:00-21:00, the frequency did not change significantly. The origin of the scattered light noise will be the same.
      * The discussion to have the separate meeting started.

-----
=== 20241023 (Wed.) ===
 * Agenda
   * Announcement
    * O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(10/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda241017|operation (10/17)]]
    * Scheduled conference
     * JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) [[https://sites.google.com/view/jgrg33|web]]
     * KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0160/L2416086/001/KAGRAReport_20241018.pdf|10/18]]
    * Next meeting: October 30
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * lock loss study in the commissioning (YamaT, Yuzurihara) [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/lockloss_o4b_break.html|web]]
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * Commissioning support
      * Added MICH and PRCL feedback signal on Gauch (non-Gaussian monitor) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31349|klog]]
      * Computation of expected improvement of inspiral range by noise subtraction of violin mode and mitigation of the noise bump [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31370|klog]]
   * Summary page update
      * Added "IFO Lock" state to the OMC tab[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31386|klog]]
     * Line noise investigation
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16098|slide]]
     * Scattered light noise
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16099|slide]]

-----
=== 20241016 (Wed.) ===
 * Agenda
   * Announcement
    * O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(10/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda241010|operation (10/10)]]
    * Scheduled conference
     * JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) [[https://sites.google.com/view/jgrg33|web]]
     * KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0160/L2416068/001/KAGRAReport_20241002.pdf|10/02]]
    * Next meeting: October 23
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * lock loss study in the commissioning (YamaT, Yuzurihara) [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/lockloss_o4b_break.html|web]]
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * Commissioning support
      * Scattered light noise 2024/10/07 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31249|klog]]
     * Summary page update
      * Added plots of polarization monitor channels [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31250|klog]] [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/day/20241010/isc/polarization/#locked_rf_|summary page]]
      * Added Low Noise state to OpLev plot [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31308|klog]]
      * Removed "RF lock" state [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31313|klog]]
      * Update guardian state [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31338|klog]]
      * Changed the order of state on the SummaryPage [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31339|klog]]
     * Pastavi update: block the comtamination of the artificial signal [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31272|klog]]

-----
=== 20241009 (Wed.) ===
 * Agenda
   * Announcement
    * O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(9/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda240919|operation (09/19)]]
    * Scheduled conference
     * JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) [[https://sites.google.com/view/jgrg33|web]]
     * KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0160/L2416068/001/KAGRAReport_20241002.pdf|10/02]]
    * Next meeting: October 16
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * lock loss study in the commissioning (YamaT, Yuzurihara) [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/lockloss_o4b_break.html|web]]
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
      * Recovery work after Kashiwa cluster maintenance, such as cache file and segment production. (Uchikata) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31182|klog]]
      * Recovery of bruco server from Kashiwa planned power outage(YamaT) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31231|klog]]
      * Recovery of Pastavi from power outage (Yuzurihara) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31244|klog]]
     * Commissioning support
      * Periodic glitches in the IRX QPD (Oshino) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31220|klog]]
      * Checked the laser power of the IRX (Oshino) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31219|klog]]
      * Added DHARD and CHARD control signals plot [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31246|klog]] [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/day/20241009/isc/asc_arm_control/#locked_lsc_|summary page]]
     * Glitch investigation (Kihyun)
      * Hveto analysis with triggers of SNR >= 8 is underway.
     * Scattered light noise characterization (Hsu Shih-Hong)
      * The origin of the 300 ~ 400 Hz oscillation is different from scattered light noise.
      * For the previous research on scattered light noise, see [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15055|slide]]
     * Update of condor on kmst cluster (Chia-Hsuan)
      * He tried to use the condor_valut_storer. However, it required authentification by the administrator to activate the command.

-----
=== 20241002 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(9/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda240919|operation (09/19)]]
    * Scheduled conference
     * JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) [[https://sites.google.com/view/jgrg33|web]]
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0160/L2416034/001/KAGRAReport_20240909.pdf|09/09]]
    * Next meeting: October 9
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * lock loss study in the commissioning (YamaT, Yuzurihara) [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/lockloss_o4b_break.html|web]]
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * Upgrade DetChar computers (YamaT)
      * Due to Kachiwa maitanance, nds2 is working partially.
     * lock loss study in the commissioning (YamaT, Yuzurihara)
      * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31068|lockloss investigation: 2024/09/11 16:45:56 JST]]
     * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31135|Shutdown the Pastavi server for power outage]]
     * Characterization of relationship between Omicron triggers and inspiral range during O4a (Ishikawa) [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0160/G2416062/001/report241001.pdf|slide]]
     * Line investigation (Takahiro.S.Yamamoto) [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16063|slide]]
     * Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
      * Recovery work after Kashiwa cluster maintenance, such as cache file and segment production. (Uchikata)
      * Update of the condor in Kashiwa cluster to version 23.0.14
       * This version looks fine for stochastic search (Chia-Hsuan)

-----
=== 20240911 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(8/27 updated)]] [[https://wiki.ligo.org/Operations/Agenda240829|operation (08/29)]]
    * Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
    * LIGO Detector Characterization in the first half of the fourth Observing run [[https://arxiv.org/abs/2409.02831|arxiv]]
    * Scheduled conference
     * JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.[[https://www.jps.or.jp/activities/meetings/annual/annual-index.php|web]]
     * LVK meeting @Barcelona, Spain: Registration is now open. Sept 23 – 26. [[https://lvkmeeting2024.ifae.es/|web]]
      * block schedule for the meeting is now ready
     * JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) [[https://www-tap.scphys.kyoto-u.ac.jp/jgrg/|web]]
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0160/L2416022/001/KAGRAReport_20240829.pdf|09/02]]
    * Next meeting: October 2. We will skip the meeting on September 18 and 25.
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * lock loss study in the commissioning (YamaT, Yuzurihara)
      * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=30987|Segment for lockloss of LSC_LOCK guardian]]
      * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=30997|lockloss investigation: 2024/09/05 14:50:00 JST]]
      * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31032|lockloss investigation: 2024/09/09 10:36:18 JST]]
      * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31045|Helper guardian for lockloss check]]
      * lock loss investigation tool was developed. The web page will be automatically updated: [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/lockloss_o4b_break.html|web]]
     * cache file at Kashiwa cluster (Uchikata)
      * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31051|Cache file genetation at kmst2]]
      * The cache file included duplicated frame files. By changing the execution timing, this issue was solved.
     * Segment reproduction (Uchikata, Narikawa, YamaT, Yuzu)
      * There was a missing period at the Kamioka cluster. While generating the segment at the Kashiwa cluster, we noticed that it's important to use the consistent version of gwpy and python-ligo-xml to upload the segment for DQSEGDB. We found a suitable conda environment at the Kaashiwa cluster. The segment file generated in the Kashiwa cluster looks consistent with the one generated in the Kamioka cluster. The next step is to ask Robert to include the updated segments on DQSEGDB.
     * Line investigation (Takahiro.S.Yamamoto)
      * The script was developed to merge the spreading line noise into one line noise. Although the test script is working well, it requires more time to mature.

-----
=== 20240904 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(8/27 updated)]] [[https://wiki.ligo.org/Operations/Agenda240718|operation (07/18)]]
    * Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
    * Scheduled conference
     * JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.[[https://www.jps.or.jp/activities/meetings/annual/annual-index.php|web]]
     * LVK meeting @Barcelona, Spain: Registration is now open. Sept 23 – 26. [[https://lvkmeeting2024.ifae.es/|web]]
      * block schedule for the meeting is now ready
     * JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) [[https://www-tap.scphys.kyoto-u.ac.jp/jgrg/|web]]
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0160/L2416022/001/KAGRAReport_20240829.pdf|09/02]]
    * Next meeting: September 11. We will skip the meeting on September 18 and 25.
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * KAGRA student workshop (Yuzurihara)
       * During the KAGRA student workshop (2024/08/27-29), we visualized the KAGRA data around the trigger time of high chi^2 statistics by using the time-frequency map [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=30968|klog]] [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16024|JGWdoc]]
       * scattered light affects the high SNR? --> Chi^2 can mitigate the effect of the scattered light
       * What about the effect on parameter estimation? --> I'm not sure. The effect can be evaluated by analyzing the data injected with scatter light noise.
        * Providing segment information on the scattered light noise might be helpful. The difficulty is in identifying the time that occurs when the scattered light is present.
        * Chia-Jui-san mentioned the method using the Omicron triggers and Q-transform.
       * (Narikawa) The other trigger list of high SNR was used? --> Not yet, due to the time constraints
     * Update contents of summary page (Oshino)
      * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=30969|klog]]
     * Related to segment files (Uchikata, Narikawa)
      * There was a missing period at the Kamioka cluster. While generating the segment at the Kashiwa cluster, we noticed that it's important to use the consistent version of gwpy and python-ligo-xml to upload the segment for DQSEGDB. We found a suitable conda environment at the Kaashiwa cluster. The segment file generated in the Kashiwa cluster looks consistent with the one generated in the Kamioka cluster.
      * The automatic generation of the cache file sometimes fails at the Kashiwa cluster. We doubt the cause is the cluster setting. We are discussing how to avoid the failure of cache file generations.
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
       * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15681|slide]]
       * He injected the BNS signal into the data using Bilby and showed the reconstruction result.
       * The duration of the BNS template (fmin=30Hz) is 250s.
     * Line investigation (Takahiro S Yamamoto)
      * He implemented the code to generate the normalized spectrum. By eyeball check, the result looks consistent with the results by YamaT-san.
      * The next step is to fit the line peak using Gaussian or Lorenzian distribution and characterize the line width and stability of the frequency.
      * Clustering might be necessary to merge the broad line noise into one line.
      * [[https://git.ligo.org/yamamoto2/line_identification_for_kagra|Working repo(internal)]]

-----
=== 20240807 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(7/18 updated)]] [[https://wiki.ligo.org/Operations/Agenda240718|operation (07/18)]]
    * Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
    * Request to reduce batch job during 8/27-30 for the Student Workshop (See [kagra 06769])
    * Scheduled conference
     * KAGRA f2f meeting: 2024/08/21(Wed)~23(Fri) @Tokyo City University [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2024August|web]]
      * Satellite meeting for noise reduction of KAGRA: 2024/08/24 9:00~12:00 [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2024August#Day4%3A%20August%2024%20(Saturday)%20JST%209%3A00-12%3A00|web]]
     * JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.[[https://www.jps.or.jp/activities/meetings/annual/annual-index.php|web]]
     * LVK meeting @Barcelona, Spain: Registration is now open. Sept 23 – 26. [[https://lvkmeeting2024.ifae.es/|web]]
     * JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) [[https://www-tap.scphys.kyoto-u.ac.jp/jgrg/|web]]
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0159/L2415918/001/KAGRAReport_20240729.pdf|07/29]]
    * Next meeting is September 4
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
      * Although they updated the way of clustering, the basic feature didn't change. [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15876|slide]]
     * The usage manual for veto definer was prepared by Uchikata-san [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/DAWG/Detchar/Veto%20Definer%20File%20(VDF)|usage manual for veto definer]]
     * Hveto analysis
      * The comparison between Omicron 2.4 and 3.2 was done

-----
=== 20240731 (Wed.) ===
 * Wide presentation of PhD thesis
  * Date: Wednesday, July 31 at 11:00 JST/KST or 2:00 UTC. (20~30 min. for the presentation. 10~15 min. for the question.)
  * Presenter: Kihyun Jung
  * Thesis title: Classification and Analysis of KAGRA Glitch
  * Thesis manuscript: https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15866

-----
=== 20240724 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(7/18 updated)]] [[https://wiki.ligo.org/Operations/Agenda240718|operation (07/18)]]
    * Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
    * Scheduled conference
     * KAGRA f2f meeting: 2024/08/21(Wed)~23(Fri) @Tokyo City University [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2024August|web]]
     * JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.[[https://www.jps.or.jp/activities/meetings/annual/annual-index.php|web]]
     * LVK meeting @Barcelona, Spain: Registration is now open. Sept 23 – 26. [[https://lvkmeeting2024.ifae.es/|web]]
     * JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) [[https://www-tap.scphys.kyoto-u.ac.jp/jgrg/|web]]
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0158/L2415897/002/KAGRAReport_20240716.pdf|07/16]]
    * Next meeting is 08/07(Wed). Next week, we will have Wide presentation of PhD thesis by Kihyun.
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * Add cooler ondotori page (Oshino) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=30353|klog]]
     * [[https://git.ligo.org/computing/helpdesk/-/issues/6176#note_1061004|KAGRA segment file production stopped on 28 June 2024]]
      * The cause was the stop of cache file at Kamioka computer due to the expire of gps time package.
      * To return to an automated setup, would it be possible to have the incomplete files created in one directory and only moved to their final location after the whole day's segments are finalized?
      * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=30519|Reduce the cadence of segment production at Kamioka site]]
     * On this Friday, we shut down the Kamioka computers due to a planned power outage.
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
      * They are updating the way to cluster the triggers.
     * veto definer (Uchikata)
      * When we make veto definer, we need the segment updated in DQSEGDB. But, currently, the necessary segment was not uploaded on DQSEDB. We will ask Robert to include them soon.
      * Uchikata-san will summarize the procedure at the DAC wiki.
     * Line identification (Takahiro S. Yamamoto)
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15909|slide]]
      * By using Fscan, the line noise in O1 data was investigated. [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15768|Fscan]]
      * The goal is to obtain the line frequency and the typical width.
      * Investigating the stability of line noise is important. It will be the first task.
     * Stochastic search (Chia-Hsuan)
      * The line list computed from the data with a shorter duration might be important. Currently, we use the line list of 0.001 mHz resolution. The unification between the stochastic analysis and the detchar analysis is necessary.
     * Parameter estimation analysis with KAGRA O4a data (Kobayashi)
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15905|slide]]
     
-----
=== 20240717 (Wed.) ===
 * canceled

-----
=== 20240710 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(6/17 updated)]]
    * Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
    * Future meeting
     * JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.[[https://www.jps.or.jp/activities/meetings/annual/annual-index.php|web]]
     * KAGRA f2f meeting: 2024/08/21(Wed)~23(Fri) @Tokyo City University [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2024August|web]]
     * LVK meeting @Barcelona, Spain: Registration is now open. Sept 23 – 26. https://lvkmeeting2024.ifae.es/
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0158/L2415869/001/KAGRAReport_20240702.pdf|07/02]]
     * Recovery from the Noto Earthquake Disaster
    * Next meeting is 07/24(Wed).
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * Comparison of Hveto results according to Omicron HPF(Kihyun Jung) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=30318|klog#30318]]
     * (Yamat) The Summary page needs to be updated. It is now a bottleneck for updating the detchar tools in IGWN conda environment.
     * CBC trigger list for O4a (Uchikata, Narikawa)
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15876|slide]]
      * Check the details for large chi^2 /SNR triggers.
      * Generate the lists automatically and upload it to the daily summary page.
      * Extend the analysis to the CBC search.
      * We may need to gate the IPC error segments for the search.
     * O4a event rate by pyCBC search (Narikawa, Uchikata)
      * If configuration is same as Omicron, we can compare the results.
      * How does pycbc treat the time-clustering? --> clustered triggers within 10 seconds.
      * How the clustering length is decided? In Omicron case, the 0.1 clustering length is decided empirically.
     * Hveto analysis (Kiyun)
      * Kiyun agreed with the wide presentation for KAGRA collaborators, which will be an alternative presentation in the f2f meeting.
     * Deep clean(Shu-Wei Yeh)
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15878|slide]]
      * They checked the response on the strain at the hardware injection. For these data, they didn't apply the deep clean.
     * Stochastic search (Chia-Hsuan)
      * Yuzurihara shared the procedure to submit the application of the account on the kmst cluster.
      * Detchar member (Uchikata+) will prepare the veto definer for IPC glitches instead of segment file.

-----
=== 20240703 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(6/17 updated)]]
    * Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
    * Future meeting
     * JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.[[https://www.jps.or.jp/activities/meetings/annual/annual-index.php|web]]
     * KAGRA f2f meeting: 2024/08/21(Wed)~23(Fri) @Tokyo City University [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2024August|web]]
     * LVK meeting @Barcelona, Spain: Registration is now open. Sept 23 – 26. https://lvkmeeting2024.ifae.es/
    * Announcements from Operations (Sawada)
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0158/L2415847/001/KAGRAReport_20240618.pdf|06/18]]
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
     * provide the CAT1 veto-definer file for IPC glitch (Uchikata)
 * Minutes
     * Bruco configuration for MICH (yamaT) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=30133|klog#30133]]
      * Bruco server was replaced to new system
     * Inconsistence of number of triggers between Omicron versions [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=30101|klog#30101]]
      * On LIGO summary page, the old Omicron(>v4.0) seems to run for Hveto analysis.
      * For Hveto at different computers (Kamioka, Kashiwa, KISTI), we should use the Omicron with the consistent versions.
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
      * They generated the triggers for O4a data. There were no daily fluctuations in the triggers.
      * The comparison between the O4a triggers and triggers computed by the simulated Gaussian noise is underway. The Gaussian data doesn't include the line noise.
     * Report of updating the DeepClean results using training and cleaning times that avoid IPC glitches (Shu-Wei Yeh) [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15868|slide]]
      * Subtraction of the 60 Hz line noise and noise monitored by the microphone is underway.
      * They showed some improvement by excluding the data of IPC glitches.
      * (yamaT) How did you confirm the current-voltage monitor can track the line drift? The coherence might not be the evidence for a narrow frequency bin.
      * (yamaT) Acoustic injection test many times, they investigated the coupling functions between sound and DARM.

-----
=== 20240626 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(6/17 updated)]]
    * Power outage of ICRR Kashiwa campus on 2024/09/28 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
    * Conference
     * JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.[[https://www.jps.or.jp/activities/meetings/annual/annual-index.php|web]]
     * KAGRA f2f meeting: 2024/08/21(Wed)~23(Fri) @Tokyo City University
    * Announcements from Operations (Sawada)
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0158/L2415847/001/KAGRAReport_20240618.pdf|06/18]]
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
 * Minutes
     * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=30013|Usage manual was updated for the latest Omicron (v4.1)]]
      * We compared the number of triggers between different Omicron versions (v4.1 and v3.1) in root/hds5/xml formats.
      * Based on the reply from the developer, the Omicron (v3.1) had the bug. The developer recommends using the latest Omicron for the analysis.
      * Yuzurihara updated [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/DAWG/Detchar/Omicron|usage manual]] for v4.1 using the hdf5 format.
     * Update for gates found in stochastic search (Chia-Hsuan)
      * The gating with 3.5 s tme window was applied in pygwb when the large transient (IPC glitch) occurred. To mitigate the length losing by gating, it's better to usr the veto-definer.
      * Uchikata-san have an experience on the veto-definer. She will try to prepare it.
      * Currently they analyzed O4a data (L1, H1, K1) on CIT. But, the L1 and H1 data are stored in system-B(kmst2).
     * Trigger generation for O4a data by pycbc (Narikawa)
      * They showed the result of comparing the O4a triggers with the triggers computed by Gaussian noise (~5days). The discussion is underway.
     * Hveto analysis (Syifa)
      * Analysis-flag change: https://hveto.readthedocs.io/_/downloads/en/stable/pdf/
     * Glitch investigation (Chia-Jui)
      * They explained how to apply the whitening: (1) estimate the ASD from the data of (tc-58)~(tc-2), (2) apply the whitening by using the estimated ASD
      * Based on their request, we shared the list of aux. channel which was used in O4a Hveto analysis in Summary page. [[https://github.com/gw-detchar/tools/blob/master/Hveto/etc/k1-hveto-daily-o4.ini|git]]


-----
=== 20240619 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': O4b will now end 9 June 2025.
     * [[https://observing.docs.ligo.org/plan/|Run plan(6/17 updated)]]
    * Power outage of ICRR Kashiwa campus on 2024/09/28 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
    * Conference
     * JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.[[https://www.jps.or.jp/activities/meetings/annual/annual-index.php|web]]
     * KAGRA f2f meeting: 2024/08/21(Wed)~23(Fri) @Tokyo City University
    * Announcements from Operations (Sawada)
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0158/L2415835/001/KAGRAReport_20240607.pdf|06/07]]
     * new commissioning leader: Takafumi Ushiba
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
 * Minutes
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28986|O4a summary page]]
      * This task is finished. The summary page is available [[https://www.icrr.u-tokyo.ac.jp/~uchikata/Detchar/O4aSumm/gps/1368975618-1371337218/|here]].
      * The data set for the inspiral range is also available on system-B.
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
      * They are working on comparing the effect by changing the segment durations of 256s and 128s.
      * In the future, we will connect the trigger results with the summary page.
      * Currently they produced the triggers by using the template of 1.4-1.4Msun.
     * Glitch classification
      * They showed the summaries of the glitch classification.
      * The glitches located in the upper right on Q-transform might be related to the lockloss.

-----
=== 20240612 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': We plan to commence O4b at 1500 UTC (2400 JST) on '''10 April 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda240321|internal discussion]], [[https://observing.docs.ligo.org/plan/|public announcements]]
     * [[https://observing.docs.ligo.org/plan/|Run plan(5/23 updated)]]
    * Power outage of ICRR Kashiwa campus on 2024/09/28 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
    * Conference
     * JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.[[https://www.jps.or.jp/activities/meetings/annual/annual-index.php|web]]
     * KAGRA f2f meeting: 2024/08/21(Wed)~23(Fri) @Tokyo City University
    * Announcements from Operations (Sawada)
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0158/L2415835/001/KAGRAReport_20240607.pdf|06/07]]
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
 * Minutes
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      * Computed the inspiral range from the strain channel with gwpy. Basically they used only the data in the science mode.
      * The histogram of the inspiral range changed. We can see the peak on the histogram.
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
      * They computed the triggers by using pycbc package from the strain data and packed in the xml.
      * The analyzed data include the IPC glitches. But, the chi-square could mitigated the glitch effect.
      * (Yuzu) Did you find the interesting or new triggers? --> no. Data seems stable.
      * (YamaT) Can you compare the trigger histogram with the one from Gaussian noise data? --> not yet. It's possible by replacing the input data with the generated Gaussian noise.
     * Glitch classification (Hsu Shih-Hong)
      * They took the average of the Q-spectrograms for each class. The obvious common features were not observed.
      * They tried to extract the common features on the Q-spectrograms.
      * It's important to take into account of the whitening effect. The whitening in gwpy could make the sharp glitch wider.

-----
=== 20240605 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': We plan to commence O4b at 1500 UTC (2400 JST) on '''10 April 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda240321|internal discussion]], [[https://observing.docs.ligo.org/plan/|public announcements]]
     * [[https://observing.docs.ligo.org/plan/|Run plan(5/23 updated)]]
    * Next 10yr Task Force Meeting: 2024/06/07 17:00JST, see [kagra 06570]
    * Power outage of ICRR Kashiwa campus on 2024/09/28 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
    * JPS registration: 2024/5/21~6/5 [[https://www.jps.or.jp/activities/meetings/annual/annual-index.php|web]]
     * Does anyone have a presentation related to DetChar activity?
    * Announcements from Operations (Sawada)
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0158/L2415802/001/KAGRAReport_20240522.pdf|05/22]]
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
   * isotropic stochastic search result (Chia-Hsuan)
 * Minutes
  * In next JPS meeting(Sep.), YamaT plan to talk the detchat topics related to the web service (https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/).
  * Issue of monopolizing the CPU resources of system-B cluster. (this might be the third time in my memory)
   * Yuzurihara contacted the administrators to set some threshold or update the cluster settings so that the job submission system will manage the jobs submitted by many users effectively. Still no response from the administrators.
  * isotropic stochastic search result (Chia-Hsuan) [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15825|slide]]
   * They analyzed the O4a KAGRA data with other detectors by using the pygwb pipiline, at CIT cluster.
   * They found the strange peak on the gating length. They shared the list of the gated time. The comparison between the list and the time of IPC glitches will be done soon.
   * They reported the coherence between KAGRA and LIGO (Livingston and Hanford). About the coherence of 960 and 961 Hz, yamaT pointed out that it came from the timing system. We use the same timing system between KAGRA and LIGO. See also [[https://alog.ligo-la.caltech.edu/aLOG/index.php?callRep=71308|alog]].
    * AI for detchar: Collect the information of the remaining frequencies with coherence
   * (YamaT) How did you integrate the data for narrow-line analysis? --> all of the science mode
   * How was the gate process applied?
   * What is the good frequency band for the analysis? --> (YamaT) Comments from the calibration side: use 30~1000Hz.
  * Glitch classification (Chia-Jui) [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15824|slide]]
   * They reported the glitches detected in O4a data can be classified into several classes by using unsupervised classification.
   * Q-transform plots are available [[https://git.ligo.org/agoodmanjerry/k1-o4a-glitches/-/tree/main/O4a-no-ipc/K1/q_spectrogram_4s_snr_g10?ref_type=heads|git]].
   * Yama-T commented on slack that the glitch effect might be widen by the whitening process.
  * O4a summary page (Uchikata)
   * We have decided to compute the inspiral range without the gwsumm. The computation is on-going.
  
-----
=== 20240529 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': We plan to commence O4b at 1500 UTC (2400 JST) on '''10 April 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda240321|internal discussion]], [[https://observing.docs.ligo.org/plan/|public announcements]]
     * [[https://observing.docs.ligo.org/plan/|Run plan(5/23 updated)]]
    * Next 10yr Task Force Meeting: 2024/06/07 17:00JST, see [kagra 06570]
    * Power outage of ICRR Kashiwa campus on 2024/09/28 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
    * Renewal of the account on KAGRA Main Data System: deadline 2024/05/31
    * JPS registration: 2024/5/21~6/5 [[https://www.jps.or.jp/activities/meetings/annual/annual-index.php|web]]
     * Does anyone have a presentation related to DetChar activity?
    * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0158/L2415802/001/KAGRAReport_20240522.pdf|05/22]]
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
 * Minutes
  * Glitch analysis (Ishikawa)
   * The Omicron analysis for non-stationary noise around 360 Hz is on-going.
   * There might the 5-minutes fluctuation on the inspiral range. The analysis for other data will be done next.
  * Glitch analysis (Chia-Jui)
   * The Omicron analysis for the science mode excluding the IPC glitch is on-going.
   * (Guo Chin Liu) Do you have a flag to indicate the glitch time? --> Omicron provide the time of the glitch.
   * (Guo Chin Liu) What is the ratio in the science mode?
   * He found several characteristic types of glitches in KAGRA O4a data. For details, see [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15808|slide]].
   * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=29675|klog]]
  * Hveto analysis (Syifa)
   * Hveto analysis with high pass filter is on-going.
  * Dedicated O4a summary page (Uchikata)
   * She found that the cache file for O4a data has the issue of overlapping or missing. She updated the cache file. [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=29592|Modification of cache files at system B]]
  * (Sawada) Matlab on the LDAS cluster will stop on the next maintenance day. If you want to use the Matlab on LDAS cluster, please contact with Sawada-san.


-----
=== 20240515 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': We plan to commence O4b at 1500 UTC (2400 JST) on '''10 April 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda240321|internal discussion]], [[https://observing.docs.ligo.org/plan/|public announcements]]
    * KAGRA detchar liaison to CBC group
     * Nami Uchikata as the new liaison between the CBC group and the KAGRA Detchar group.
    * KAGRA site report
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
 * Minutes
  * Update contents of summary page (Oshino)
   * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=29496|4.5 Hz peak of IMC]]
   * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=29439|Modified IMC page on SummaryPage]]
  * Hveto (Shifa)
   * By changing cutoff frequency of 8 or 12Hz, they checked the Hveto results and found the artificial glitches around 10Hz.
   * When they apply the HPF with 6 Hz or 4 Hz, the artificial glitches around 10Hz disappeared.
   * (YamaT) Do you know the design of HPF (butterworth?)?
   * (Uchikata) Minimum frequency of Hveto should be larger than the cutoff frequency of high pass filter in Omicron.
    * (YamaT) It might make the ripple.
   * (Yuzu) You can analysis the Omicron triggers with the higher cut-off frequency.
  * Glitch analysis (Ishikawa)
   * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=29454|klog#29454]] [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15785|slide]]
   * (Chia-Jui) How do you set-up the Omicron configuration files? --> Same as commonly used one.
   * (Chia-Jui) What was the typical SNR of 300-500Hz? --> SNR 6~10? He didn't have a clear answer. He will check it.
  * Glitch analysis (Chir-Jui)
   * Omicron analysis without high pass filter was done.
   * In page 7, there were gaps due to the exceed of threshold of glitch rate. At that time, Omicron failed due to the error.
   * We confirmed the goal of the Detchar activity is to contribute the sensitivity or noise hunting of KAGRA.
   
-----
=== 20240508 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': We plan to commence O4b at 1500 UTC (2400 JST) on '''10 April 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda240321|internal discussion]], [[https://observing.docs.ligo.org/plan/|public announcements]]
    * Introduction of new comer
    * KAGRA site report
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
 * Minutes
  * Omicron triggers at System B (Uchikata) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=29328|klog]]
  * Update contents of summary page (Oshino)
   * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=29408|Add shindo plots on SummaryPage]]
   * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=29387|Update navigation bar on SummaryPage]]
  * line identification by fscan for kagra (Takahiro.S.Yamamoto) [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15768|slide+supplement]]
   * What is the frequency resolution?
   * Segment duration of 1800 s is a typycal value in continuous wave search? --> yes
   * Is is posible to real-time monitoring of 60 Hz?
   * What is the advantage to used fscan?
   * The result for O4a data is available on the [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/fscan/summ/fscans_2023_05_31_09_00_00_JST/K1_CAL-CS_PROC_DARM_STRAIN_DBL_DQ/fscanK1_CAL-CS_PROC_DARM_STRAIN_DBL_DQ_K1_1369526418_1369612818.html|web]]. Due to computational costs, we didn't use aux. channels.
  * Hveto analysis (Kyujin, Kihyun, Syifa)
   * By adding the high pass filter, the artificial glitches appeared, although there is no such glitches in Uchikata-san's results.
  * Omicron on K1 O4a Data (Chia-Jui) [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15769|slide]]
   * They proposed the way to identify the IPC glitches. --> The way to identify the IPC glitches was already established.
   * They found three classes of glitches in KAGRA data.
  * Dedicated summaru page for O4a KAGRA (Uchikata)
   * When we compute the inspiral range by reading the data from NDS server,

-----
=== 20240424 (Wed.) ===
 * Agenda
   * Announcement
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': We plan to commence O4b at 1500 UTC (2400 JST) on '''10 April 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda240321|internal discussion]], [[https://observing.docs.ligo.org/plan/|public announcements]]
    * Introduction of new comer
    * KAGRA site report
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
     * cache file for O3GK and O4a
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
 * Minutes
  * Meeting on Next week will be canceled. Next meeting is 8 May.
  * Report of KIW and open data workshop#7 (Yuzurihara)
  * Computer cluster at Kamioka (Oshino)
   * We purchased the rack. In future, we move the computer in the rack.
  * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
   * Confirmation of the result is on-going.
   * The scale of histogram was changed. The apperance looks consistent with the dedicated summary page and the YamaT-san's [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/binaryRanges_o4a.html|result]].
   * TODO: Inspiral range should be computed from the strain channel, not using the RANGE channel. That Range channel is used for the prompt report.
  * Hveto (Kyujin, Kihyun, Syifa)
   * The analysis result was explained in the meeting.
   * The high pass filter with 10 Hz or 15 Hz was applied for the Omicron analysis. The frequency range for Omicron should be tuned at the same time to mitigate the artificial noise in the Omicron triggers.
   * whale-like shape disappered in the histogram of Omicron triggers when we remove the segment of IPC glitch from the analysis.
   * Is there any suggestion to the interferometer experts? For example, which channels seems problematic.
  * Glitch investigation (Ishikawa)
   * Studying the Omicron pipeline and applying to the KAGRA's O4a data [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15747|Progress report]]
  * Line investigation (Samurai)
   * Reading Fscan paper for past observation run (S6, O1, O2). The report will be done in the future meeting.

-----
=== 20240410 (Wed.) ===
 * Agenda
   * Announcement
    * KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 [[https://indico.phys.sinica.edu.tw/event/92/|web]]
    * Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 [[https://indico.phys.sinica.edu.tw/event/92/page/220-gravitational-wave-open-data-workshop|web]], [[https://gwosc.org/odw/odw2024/|Info. from GWOSC]]
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': We plan to commence O4b at 1500 UTC (2400 JST) on '''10 April 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda240321|internal discussion]], [[https://observing.docs.ligo.org/plan/|public announcements]]
    * Introduction of new comer
    * KAGRA site report
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
 * Minutes
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
      * Use segment information of SCIENCE MODE + IPC glitch ==> ongoing
       * ongoing
      * Change data length 4096s -> 64s. Apply the high pass filter before splitting the data. ==> done
      * Estimate common PSD and use it for the analysis ==> done
      * Is it possible to output the trigger list in xml format?
       * https://gwpy.github.io/docs/latest/table/io/#ligo-lw-xml


-----
=== 20240403 (Wed.) ===
 * Agenda
   * Announcement
    * KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 [[https://indico.phys.sinica.edu.tw/event/92/|web]]
    * Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 [[https://indico.phys.sinica.edu.tw/event/92/page/220-gravitational-wave-open-data-workshop|web]], [[https://gwosc.org/odw/odw2024/|Info. from GWOSC]]
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4b''': We plan to commence O4b at 1500 UTC (2400 JST) on '''10 April 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda240321|internal discussion]], [[https://observing.docs.ligo.org/plan/|public announcements]]
    * Update of DQSEGDB server [[https://git.ligo.org/computing/helpdesk/-/issues/5672|help ticket]]
    * KAGRA site report
   * Budget request
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
 * Minutes
     * Upgrade DetChar computers (YamaT)
      * waiting the update of workstation machines. I will take a few monthes.
     * DQR update (Yuzurihara)
      * no update.
     * Update contents of summary page (Oshino)
      * no update
     * Hveto (Kyujin)
      * Trouble on KISTI cluster.
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
      * Use segment information of SCIENCE MODE + IPC glitch
      * Change data length 4096s -> 64s. Apply the high pass filter before splitting the data.
      * Estimate common PSD and use it for the analysis
      * Is it possible to output the trigger list in xml format?

-----
=== 20240326 (Wed.) ===
 * Agenda
   * Announcement
    * KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 [[https://indico.phys.sinica.edu.tw/event/92/|web]]
    * Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 [[https://indico.phys.sinica.edu.tw/event/92/page/220-gravitational-wave-open-data-workshop|web]], [[https://gwosc.org/odw/odw2024/|Info. from GWOSC]]
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''ER16''': It will nominally start at 1500 UTC (2400 JST) on '''20 Mar 2024''', and last for 2 weeks.
     * '''O4b''': We plan to commence O4b at 1500 UTC (2400 JST) on '''3 April 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda240321|internal discussion]], [[https://observing.docs.ligo.org/plan/|public announcements]]
    * KAGRA site report
   * Budget request
   * Progress reports
     * Upgrade DetChar computers (YamaT)
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Related to segment files (Uchikata, Narikawa)
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
 * Minutes
   * Budget request
     * New computers for replacing too old servers (k1det0, 1): 500k-yen x2
     * HDD for new systems: 10k-yen x10-20
   * Progress reports
     * Upgrade DetChar computers (YamaT)
       * Testing DetChar softwares can be started after the update of CDS workstations is completed.
       * Test of CDS workstation needs more time (hopefully by end of April)
     * DQR update (Yuzurihara)
       * No update
     * Update contents of summary page (Oshino)
       * No update
     * Related to segment files (Uchikata, Narikawa)
       * No update
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
       * [[https://www.icrr.u-tokyo.ac.jp/~uchikata/Detchar/O4aSumm/gps/1368975618-1371337218/range/]]
       * SummaryPages process was executed on Kashiwa System-B.
       * Results were copied to the personal region of ICRR's Web server.
       * Finally this page will be opened only for LVK folks(?) on gwdet.
     * pyCBC trigger list for O4a data (Narikawa and Uchikata)
       * No update

-----
=== 20240306 (Wed.) ===
 * Agenda
   * Announcement
    * KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 [[https://indico.phys.sinica.edu.tw/event/92/|web]]
    * Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 [[https://indico.phys.sinica.edu.tw/event/92/page/220-gravitational-wave-open-data-workshop|web]], [[https://gwosc.org/odw/odw2024/|Info. from GWOSC]]
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''ER16''': It will nominally start at 1500 UTC (2400 JST) on '''20 Mar 2024''', and last for 2 weeks.
     * '''O4b''': We plan to commence O4b at 1500 UTC (2400 JST) on '''3 April 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda231214#Agenda|internal short announcements (reminders)]], [[https://observing.docs.ligo.org/plan/|public announcements]]
    * LVK meeting on March 11-14 at Louisiana State University [[https://www.lsu.edu/physics/lvkmeeting/|web]]
     * There is no fee for online participants
    * Update of member list for DetChar mailing list
    * KAGRA site report
   * Task list for the authorship 2024
   * Progress reports
    * O4a summary page(Uchikata)
     * After several attempts, the job was finished without errors. Another small problems,

-----
=== 20240228 (Wed.) ===
 * Agenda
   * Announcement
    * KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 [[https://indico.phys.sinica.edu.tw/event/92/|web]]
    * Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 [[https://indico.phys.sinica.edu.tw/event/92/page/220-gravitational-wave-open-data-workshop|web]], [[https://gwosc.org/odw/odw2024/|Info. from GWOSC]]
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''ER16''': It will nominally start at 1500 UTC (2400 JST) on '''20 Mar 2024''', and last for 2 weeks.
     * '''O4b''': We plan to commence O4b at 1500 UTC (2400 JST) on '''3 April 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda231214#Agenda|internal short announcements (reminders)]], [[https://observing.docs.ligo.org/plan/|public announcements]]
    * LVK meeting on March 11-14 at Louisiana State University [[https://www.lsu.edu/physics/lvkmeeting/|web]]
     * Early Registration is open until February 1
     * There is no fee for online participants
    * Update of member list for DetChar mailing list
    * KAGRA site report
   * Task list for the authorship 2024
   * Progress reports

 * Minutes
   * Task list for the authorship 2024 (not fixed yet)
   {{{
1. Commissioning support : serving data monitoring tools for site commissioners.
  This task focuses on the support of the IFO lock trial and/or noise hunting based on the request from the interferometer commissioners.
  Support of analyses to measured data (e.g. noise projection to the DARM with measured noise and TFs) is also contained in this task.
  Specialized tasks for each subgroup should be applied for in the respective group task.

2. Production and validation of Online Data Quality State Vector (for O4b/O5 preparation.
  This task focusing on providing the online DetChar products such as the online DQSV and managing various reliable online flags.
  Developing real-time and guardian codes for providing such flags should be contained in this task.

3. Production and validation of Segment information for O4b/O5 preparation.
  This task focusing on providing low-latency/offline segments.
  Providing segment itself, evaluation of efficient channels to make segments, evaluating benefit of segments on GW searches
  and cooperation with CIT staffs to update segment contents on DQSEGDB are contained in this task.

4. Construction of DQR (Data Quality Report) and igwn-alert framework for O4b/O5 RRT activities.
  This task focusing on providing contents from KAGRA to DQR web pages which is merged with LIGO, Virgo and KAGRA.

5. Support of Data Analysis group to set Data Category criteria for O4b/O5 joint observing run.
  This task focusing on the support of the GW-search activities based on the each WG of DAC.
  Providing data category for the pipelines of each GW sources, providing veto segments
  and other noise information such as identified spectral lines are also contained in this task.

6. Managing DET computers and their environments.
  This task contains the computer environment construction for providing the DetChar products in the cadence of online/low-latency/offline.
  Managing dedicated servers for sharing DetChar products among LVK is also contained in this task.

=====
- Noise hunting in KAGRA commissioning.
    Obsolescent
    Noise *hunting* without IFO (hardware) experts is unrealistic.
    In this meaning, the most of noise *hunting* can be covered in "Commissioning support”.
    If the tasks are related to the noise *finding* for the purpose of providing veto segment,
    they can be covered in “Support of Data Analysis”.
   }}}
     * hveto analysis is contained in 1. in the case that there is some communication with onsite commissioners via klog etc.
       * It's also potentially contained in 5. in the case of providing veto-ed segments, correlated channels etc.
     * Providing Run SummaryPage is contained in 5.
       * Exact sentence as "Making Run Summary" should be added the description in 5.
        
   * Progress reports
     * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
       * start consideration about the system upgrade to new Debian system.
       * DET tools depend on the CDS tools and CDS tools are well managed on apt-repository.
       * Only a part of CDS tools can be available on Anaconda now.
     * DQR update (Yuzurihara)
     * Update contents of summary page (Oshino)
     * Combine DET computer resources into one DET cluster at Kamioka site
     * Related to segment files (Uchikata, Narikawa)
     * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa) [[https://ldas-jobs.ligo.caltech.edu/~detchar/summary/O4a/|O4a (LV)]]

     * pyCBC trigger list for O4a data (Narikawa and Uchikata) [[https://ldas-jobs.ligo-wa.caltech.edu/~detchar/summary/day/20240108/detchar/pycbc_live_medium/| O4a (H1)]]
       * 4000s data analysis is ongoing.
         * Processed time is a few hours
       * Used template is changed from BBH to BNS.
         * Trigger behavior is changed by used templates.
       * Generated triggers are in the text format.
         * If LIGO's XML (LW XML?) is available, it may be very easy to make various plots on SummaryPages.

-----
=== 20240221 (Wed.) ===
 * Agenda
   * Announcement
      * KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 [[https://indico.phys.sinica.edu.tw/event/92/|web]]
    * Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 [[https://indico.phys.sinica.edu.tw/event/92/page/220-gravitational-wave-open-data-workshop|web]]
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''ER16''': It will nominally start at 1500 UTC (2400 JST) on '''20 Mar 2024''', and last for 2 weeks.
     * '''O4b''': We plan to commence O4b at 1500 UTC (2400 JST) on '''3 April 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda231214#Agenda|internal short announcements (reminders)]], [[https://observing.docs.ligo.org/plan/|public announcements]]
    * LVK meeting on March 11-14 at Louisiana State University [[https://www.lsu.edu/physics/lvkmeeting/|web]]
     * Early Registration is open until February 1
     * There is no fee for online participants
    * Update of member list for DetChar mailing list
    * KAGRA site report (Yuzurihara)
   * Commissioning support + tasks related to O4a
    * O4a for KAGRA : 2023/05/25 0:00 JST (=2023/05/24 15:00UTC) ~ 2023/06/21 8:00 JST
    * Event validation (YamaT)
    * Online data quality state vector (YamaT)
    * Tool to evaluate Gaussianity (Yamamura)
    * Scattered light noise (Yamamura)
     * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28584|Investigation of scattered light noise in O4a]] [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/DAWG/Detchar/klog/klog28584|plots]]
    * Pastavi update (Yuzurihara)
    * Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
    * Classification of glitch noise (Shikano, Oshino)
    * IPC glitch
    * line noise study (Samurai)
Line 57: Line 1171:
   * Noise hunting by machine learning and Hveto (Kyujin/Kihyun)
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)
 * Minutes
   * KAGRA commissioning reports
    * noise budget tool is available [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22627|klog#22627]]
   * DQR update (Yuzurihara)
    * Issues in running DQR [[https://git.ligo.org/o4-dqr/o4-dqr-configuration/-/issues|issue]]
    * DQR submission started before the NDS server registered the frame data. this issue also happened for LIGO. RETRY option in condor might solve the problem.
    * DQR summary page is available on CIT.
    * new release on [[https://git.ligo.org/o4-dqr/o4-dqr-configuration|TaskManager]]. will be tested on KAGRA site
   * Update contents of summary page (Oshino)
    * switch frametype of strain channel to `science` [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22636|klog#22636]]
    * Summary page helps lockloss investigation [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22651|klog#22651]]
    * SummaryPage VIS process was stopped from 10/24 15:00 UTC. [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22669|klog#22669]]
   * Noise hunting by machine learning and Hveto (Kyujin/Kihyun)
    * plan to present poster at [[https://www.gwpaw2022.org|GWPAW 2022]]
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)
    * plan to stay KAGRA site in November

-----
=== 20221019 (Wed.) ===
 * Agenda
   * Announcement
    * next f2f meeting : Nov. 30(Wed) ~ Dec. 1 (Thu) [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2022December|wiki]]
     * hybrid style, Kashiwa campus in person and remote on zoom
     * registration deadline : Nov. 11 (Fri)
    * next LVK meeting : 13 to 16 March 2023 @ Northwestern University, IL, USA
    * Proposal to lower the public alert threshold [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/DAWG/DAC/Telecons/20221017#Proposal%20to%20lower%20the%20public%20alert%20threshold|KAGRA DAC]] [[https://dcc.ligo.org/LIGO-G2201755|slide]]
   * KAGRA commissioning reports (Yokozawa) [[KAGRA/Subgroups/DET/Meeting/221019|Commissioning221019]]		    * Related to segment files (Uchikata, Narikawa)
   * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa) [[https://ldas-jobs.ligo.caltech.edu/~detchar/summary/O4a/|O4a (LV)]]
   * pyCBC trigger list for O4a data (Narikawa)
 * Minutes

-----
=== 20240214 (Wed.) ===
 * Agenda
   * Announcement
      * KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 [[https://indico.phys.sinica.edu.tw/event/92/|web]]
    * Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 [[https://indico.phys.sinica.edu.tw/event/92/page/220-gravitational-wave-open-data-workshop|web]]
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''ER16''': It will nominally start on '''13 Mar 2024''', and last for 2 weeks. (Note that ER16 will begin in the middle of the next LVK meeting at LSU, 11-14 March.)
     * '''O4b''': We plan to commence O4b at 1600 UTC (2500 JST) on '''27 Mar 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda231214#Agenda|internal short announcements (reminders)]], [[https://observing.docs.ligo.org/plan/|public announcements]]
    * White paper and task list for 2024 [[https://git.ligo.org/operations/operations-white-paper-2023|git repo]]
    * LVK meeting on March 11-14 at Louisiana State University [[https://www.lsu.edu/physics/lvkmeeting/|web]]
     * Early Registration is open until February 1
     * There is no fee for online participants
    * Update of member list for DetChar mailing list
    * KAGRA site report (Yuzurihara)
   * Commissioning support + tasks related to O4a
    * O4a for KAGRA : 2023/05/25 0:00 JST (=2023/05/24 15:00UTC) ~ 2023/06/21 8:00 JST
    * Event validation (YamaT)
    * Online data quality state vector (YamaT)
     * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28555|Sanity check of DAC saturation bit provided by a new model]]
    * Tool to evaluate Gaussianity (Yamamura)
     * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28568|Investigation of scattered light noise in O4a]]
    * Scattered light noise (Yamamura)
    * Pastavi update (Yuzurihara)
    * Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
    * Classification of glitch noise (Shikano, Oshino)
    * IPC glitch
    * line noise study (Samurai)
Line 88: Line 1207:
   * Update contents of summary page? (Oshino)    * Update contents of summary page (Oshino)
Line 90: Line 1209:
   * Noise hunting by machine learning and Hveto (Kyujin/Kihyun)
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)
 * Minutes
   * DQR update (Yuzurihara)
    * last week, no DQR call
   * Update contents of summary page? (Oshino)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22477|klog#22477]]
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22478|klog#22478]]
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22536|klog#22536]]
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22537|klog#22537]]
    * (yuzurihara) Range Spectrum on summary page for KAGRA [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14479|slide]]
   * Combine DET computer resources into one DET cluster at Kamioka site
    * No update
   * Noise hunting by machine learning and Hveto (Kyujin/Kihyun)
    * plan to present poster at [[https://www.gwpaw2022.org|GWPAW 2022]]
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)
    * plan to stay KAGRA site in November

-----
=== 20221012 (Wed.) ===
 * Agenda
   * Announcement
    * next f2f meeting : Nov. 30(Wed) ~ Dec. 1 (Thu) [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2022December|wiki]]
     * hybrid style, Kashiwa campus in person and remote on zoom
     * registration deadline : Nov. 11 (Fri)
    * next LVK meeting : 13 to 16 March 2023 @ Northwestern University, IL, USA
   * KAGRA commissioning reports (Yokozawa) [[KAGRA/Subgroups/DET/Meeting/221012|Commissioning221012]]		    * Related to segment files (Uchikata, Narikawa)
   * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa) [[https://ldas-jobs.ligo.caltech.edu/~detchar/summary/O4a/|O4a (LV)]]
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28538|O4a summary page]]
   * pyCBC trigger list for O4a data (Narikawa)
 * Minutes
    * Online data quality state vector (YamaT)
     * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28555|Sanity check of DAC saturation bit provided by a new model]]
     * We need same test for ETMY model.
    * Scattered light noise (Yamamura)
     * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28568|Investigation of scattered light noise in O4a]]
     * (oshino) why the double bounce occurred?
     * (yamaT) it's better to check both the feedback and error signal (OUT_DQ and IN1_DQ).
     * (oshino) PD signal might be helpful in the investigation. In POP_FORWARD, the scattered light was seen in the past.
    * Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
     * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15527|KAGRA O4a hveto results (0524 ~ 0606)]] [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15632|KAGRA O4a hveto results (0607 ~ 0619)]]
     * hveto shows the many triggers on the time the scattered light noise appeared
     * (yamaT) IPC glitch was taken care in this analysis? It's better to use SCIENCE segment + IPC glitch segment.
     * It is interesting to compare the glitch rate and the analysis result with and without IPC glitch segments.
     * Yuzurihara shared that segment with Kihyun.
   * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa) [[https://ldas-jobs.ligo.caltech.edu/~detchar/summary/O4a/|O4a (LV)]]
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28538|O4a summary page]]
   * pyCBC trigger list for O4a data (Narikawa)
    * (yamaT) can we include the trigger information by pycbc, in the summary page?

-----
=== 20240207 (Wed.) ===
 * Agenda
   * Announcement
      * KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 [[https://indico.phys.sinica.edu.tw/event/92/|web]]
    * Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 [[https://indico.phys.sinica.edu.tw/event/92/page/220-gravitational-wave-open-data-workshop|web]]
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''ER16''': It will nominally start on '''13 Mar 2024''', and last for 2 weeks. (Note that ER16 will begin in the middle of the next LVK meeting at LSU, 11-14 March.)
     * '''O4b''': We plan to commence O4b at 1600 UTC (2500 JST) on '''27 Mar 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda231214#Agenda|internal short announcements (reminders)]], [[https://observing.docs.ligo.org/plan/|public announcements]]
    * White paper and task list for 2024 [[https://git.ligo.org/operations/operations-white-paper-2023|git repo]]
    * LVK meeting on March 11-14 at Louisiana State University [[https://www.lsu.edu/physics/lvkmeeting/|web]]
     * Early Registration is open until February 1
     * There is no fee for online participants
    * Update of member list for DetChar mailing list
    * KAGRA site report (Yuzurihara)
   * Commissioning support + tasks related to O4a
    * O4a for KAGRA : 2023/05/25 0:00 JST (=2023/05/24 15:00UTC) ~ 2023/06/21 8:00 JST
    * Event validation (YamaT)
    * Online data quality state vector (YamaT)
    * Tool to evaluate Gaussianity (Yamamura)
    * Scattered light noise (Yamamura)
    * Pastavi update (Yuzurihara)
    * Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
    * Classification of glitch noise (Shikano, Oshino)
    * IPC glitch
    * line noise study (Samurai)
Line 119: Line 1262:
   * Update contents of summary page? (Oshino)    * Update contents of summary page (Oshino)
Line 121: Line 1264:
   * Noise hunting by machine learning and Hveto (Kyujin/Kihyun)
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)
 * Minutes
   * DQR update (Yuzurihara)
    * New time slot for DQR meeting : Wednesday 24:00 JST. Today's meeting will be canceled.
    * Aogaku univ. members stayed KAGRA site during Sep. 25 ~ Oct. 1. They developed the script to investigate the stationarity of PEM sensors. [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22222|klog#22222]]
    * They checked accelerometer and microphone data and found that one of accelerometer sensor shows strange behavior. Now it was fixed. [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22374|klog#22374]]
   * Noise hunting by machine learning and Hveto (Kyujin/Kihyun)
    * Started to make the spectrograms (omega-scan?) for applying machine learning
    * There is issue on computer, so use KISTI cluster
    * Started to analyze LIGO data. When KAGRA data is ready, we will start to apply to KAGRA data
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)
    * Omega-scan at m31 is working. But, there is no option to use `gw_data_find` in omega-scan.
    * By editing the source code (such as gwpy), it might be archivable

-----
=== 20220926 (Mon.) ===
 * Agenda
   * Announcement
    * poll to select new time slot of detchar meeting. deadline is Sep. 30 12:00JST.
    * Pastavi server is unavailable due to the upgrade of KAGRA main storage server
   * KAGRA commissioning reports (Yokozawa) [[KAGRA/Subgroups/DET/Meeting/220926|Commissioning220926]]		    * Related to segment files (Uchikata, Narikawa)
   * Provide the dedicated summary page for O4a of KAGRA (Uchikata) [[https://ldas-jobs.ligo.caltech.edu/~detchar/summary/O4a/|O4a (LV)]]
 * Minutes
   * Online data quality state vector (YamaT)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28498|model update of k1detdq0]] This is bug fix of production of online data quality state vector related to DAC saturation.
    * The hardware test will be done this week an next week.
   * Tool to evaluate Gaussianity (Yamamura)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28519|Relaunch of GauCh]]
    * The codes were uploaded at [[https://git.ligo.org/yamamura/gauch|git repo]]. The preparation of brief documentation is ongoing.
   * Classification of glitch noise (Shikano, Oshino)
    * They restarted this project. The report will be done soon.
   * Provide the dedicated summary page for O4a of KAGRA (Uchikata) [[https://ldas-jobs.ligo.caltech.edu/~detchar/summary/O4a/|O4a (LV)]]
    * They tested the conda environment and configuration files for the production of the summary page. Except for the specific short time, they can generated the O4a summary page including duty cycle and inspiral range.
   * Generation of trigger list by pycbc (Narikawa)
    * Code test is ongoing by using the short 4096s data of O4a. The timeseries of chi square looks strange. They plan to apply the high pass filter, instead of window function.
    * (yamat) How do you decide clustering length?
    * (Narikawa) By software injection, we can evaluate how the SNR spreads and determine the clustering length.

-----
=== 20240131 (Wed.) ===
 * Agenda
   * Announcement
      * KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 [[https://indico.phys.sinica.edu.tw/event/92/|web]]
    * Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 [[https://indico.phys.sinica.edu.tw/event/92/page/220-gravitational-wave-open-data-workshop|web]]
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''ER16''': It will nominally start on '''13 Mar 2024''', and last for 2 weeks. (Note that ER16 will begin in the middle of the next LVK meeting at LSU, 11-14 March.)
     * '''O4b''': We plan to commence O4b at 1600 UTC (2500 JST) on '''27 Mar 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda231214#Agenda|internal short announcements (reminders)]], [[https://observing.docs.ligo.org/plan/|public announcements]]
    * White paper and task list for 2024 [[https://git.ligo.org/operations/operations-white-paper-2023|git repo]]
    * LVK meeting on March 11-14 at Louisiana State University [[https://www.lsu.edu/physics/lvkmeeting/|web]]
     * Early Registration is open until February 1
     * There is no fee for online participants
    * Update of member list for DetChar mailing list
    * LVK MoA survey summary [[https://dcc.ligo.org/G2400189|LIGO DCC]]
    * KAGRA site report (Yuzurihara)
   * Commissioning support + tasks related to O4a
    * O4a for KAGRA : 2023/05/25 0:00 JST (=2023/05/24 15:00UTC) ~ 2023/06/21 8:00 JST
    * Event validation (YamaT)
    * Tool to evaluate Gaussianity (Yamamura)
    * Scattered light noise (Yamamura)
    * Pastavi update (Yuzurihara)
    * Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
    * Classification of glitch noise (Shikano, Oshino)
    * IPC glitch
    * line noise study (Samurai)
Line 145: Line 1311:
    * no report on KAGRA's activity
   * Update contents of summary page? (Oshino)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=22167|klog#22167]]		    * Update contents of summary page (Oshino)
Line 149: Line 1313:
   * Noise hunting by machine learning and Hveto (Kyujin/Kihyun)
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)
 * Minutes
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)
    * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14429|slide]]
    * comment : try to set FFLPATH variable / try to use `gw_data_find`. [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/DAWG/DMG/Manuals/gw_data_find|instruction]] / try to use ffl files instead of cache file



-----
=== 20220829 (Mon.) ===
 * Agenda
   * Announcement
    * LVK meeting
    * Next week, the meeting will be canceled due to LVK meeting.
   * KAGRA commissioning reports (Yokozawa) [[KAGRA/Subgroups/DET/Meeting/220005|Commissioning220005]]		    * Related to segment files (Uchikata, Narikawa)
   * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa) [[https://ldas-jobs.ligo.caltech.edu/~detchar/summary/O4a/|O4a (LV)]]
 * Minutes
   * Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28392|O4a hveto results]]
   * line noise study (Samurai)
    * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15613|slide]]
    * Is it possible to set the initial parameter in advance, such as prominence and height?
    * In future, it is better to extend the fft length to be longer for fine frequency resolution.
   * Update contents of summary page (Oshino)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28397|Update configuration file on SummaryPage]]
   * Related to segment files (Uchikata, Narikawa)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28399|Glitch rate for O4a]]
   * provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa) [[https://ldas-jobs.ligo.caltech.edu/~detchar/summary/O4a/|O4a (LV)]]
    * The attempt to generate summary page is on system-B. For reading data, NDS2 server is helpful.

-----
=== 20240124 (Wed.) ===
 * Agenda
   * Announcement
      * KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17
    * Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 [[https://gwosc.org/workshops/|web]]
    * LIGO-Virgo-KAGRA detchar joint meeting
     * tileslot: onthly, 23:00 JST (14:00 UTC) or 6:00 JST (21 UTC)
     * Last meeting on Nov. 15 23:00 JST (14:00 UTC) [[https://wiki.ligo.org/DetChar/Telecon20231115|wiki]]
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4a''': It will end at 1600 UTC on '''16 Jan 2024'''. LLO will end O4a observing early, at 1400 UTC.
     * '''ER16''': It will nominally start on '''13 Mar 2024''', and last for 2 weeks. (Note that ER16 will begin in the middle of the next LVK meeting at LSU, 11-14 March.)
     * '''O4b''': We plan to commence O4b at 1600 UTC (2500 JST) on '''27 Mar 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda231214#Agenda|internal short announcements (reminders)]], [[https://observing.docs.ligo.org/plan/|public announcements]]
    * Information of O4a [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/Observations/O4a|wiki]] page
    * White paper and task list for 2024 [[https://git.ligo.org/operations/operations-white-paper-2023|git repo]]
    * LVK meeting on March 11-14 at Louisiana State University
    * Update of member list for DetChar mailing list
    * KAGRA site report (Yuzurihara)
   * Commissioning support + tasks related to O4a
    * O4a for KAGRA : 2023/05/25 0:00 JST (=2023/05/24 15:00UTC) ~ 2023/06/21 8:00 JST
    * Event validation (YamaT)
    * Tool to evaluate Gaussianity (Yamamura)
    * Scattered light noise (Yamamura)
    * Pastavi update (Yuzurihara)
    * Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
    * Classification of glitch noise (Shikano, Oshino)
    * IPC glitch
    * line noise study (Samurai)
     * Peak identifications [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/knownlines_o4a.html|web]]
Line 167: Line 1361:
    * no report on KAGRA's activity
    * We are collecting the comments on the proposal [[https://dcc.ligo.org/LIGO-T2200265|document]]
   * Update contents of summary page? (Oshino)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21996|klog#21996]]		    * Update contents of summary page (Oshino)
    * run Omicron at Kamioka site and refresh the Omicron plots on summary page during O4a period
Line 172: Line 1364:
   * Noise hunting by machine learning and Hveto (Kyujin/Kihyun)
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)

-----
=== 20220829 (Mon.) ===
 * Agenda
   * Announcement
    * Task list for 2022
    * LVK meeting
    * Next week, YamaT-san will chai the meeting
    * Date for detchar meeting from September or October? Monday 13:00 JST or other time?
   * KAGRA commissioning reports (Yokozawa) [[KAGRA/Subgroups/DET/Meeting/220829|Commissioning220829]]		    * Script to generate segment files (Uchikata, Narikawa)
   * Related to segment files (Uchikata, Narikawa)
   * provide the dedicated summary page for O4a of KAGRA? [[https://ldas-jobs.ligo.caltech.edu/~detchar/summary/O3a/|O3a (LV)]]
 * Minutes
    * Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
     * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28392|O4a hveto results]]
    * Update contents of summary page (Oshino)
     * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28390|Modified configuration file on SummaryPage]]

-----
=== 20240117 (Wed.) ===
 * Agenda
   * Announcement
      * KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17
    * Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 [[https://gwosc.org/workshops/|web]]
    * LIGO-Virgo-KAGRA detchar joint meeting
     * tileslot: onthly, 23:00 JST (14:00 UTC) or 6:00 JST (21 UTC)
     * Last meeting on Nov. 15 23:00 JST (14:00 UTC) [[https://wiki.ligo.org/DetChar/Telecon20231115|wiki]]
    * O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
     * '''O4a''': It will end at 1600 UTC on '''16 Jan 2024'''. LLO will end O4a observing early, at 1400 UTC.
     * '''ER16''': It will nominally start on '''13 Mar 2024''', and last for 2 weeks. (Note that ER16 will begin in the middle of the next LVK meeting at LSU, 11-14 March.)
     * '''O4b''': We plan to commence O4b at 1600 UTC (2500 JST) on '''27 Mar 2024'''.
     * Ref.[[https://wiki.ligo.org/Operations/Agenda231214#Agenda|internal short announcements (reminders)]], [[https://observing.docs.ligo.org/plan/|public announcements]]
    * Information of O4a [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/Observations/O4a|wiki]] page
    * White paper and task list for 2024 [[https://git.ligo.org/operations/operations-white-paper-2023|git repo]]
    * LVK meeting on March 11-14 at Louisiana State University
    * KAGRA site report (Yuzurihara)
   * Commissioning support + tasks related to O4a
    * O4a for KAGRA : 2023/05/25 0:00 JST (=2023/05/24 15:00UTC) ~ 2023/06/21 8:00 JST
    * Event validation (YamaT)
    * Tool to evaluate Gaussianity (Yamamura)
    * Scattered light noise (Yamamura)
    * Pastavi update (Yuzurihara)
    * Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
    * Classification of glitch noise (Shikano, Oshino)
    * IPC glitch
    * line noise study (Samurai)
     * Peak identifications [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/knownlines_o4a.html|web]]
Line 186: Line 1404:
   * Update contents of summary page? (Oshino)    * Update contents of summary page (Oshino)
    * run Omicron at Kamioka site and refresh the Omicron plots on summary page during O4a period
Line 188: Line 1407:
   * Noise hunting by machine learning and Hveto (Kyujin/Kihyun)
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)
 * Minutes		    * Script to generate segment files (Uchikata, Narikawa)
   * Related to segment files (Uchikata, Narikawa)
   * provide the dedicated summary page for O4a of KAGRA? [[https://ldas-jobs.ligo.caltech.edu/~detchar/summary/O3a/|O3a (LV)]]
 * Minutes
   * Tool to evaluate Gaussianity (Yamamura)
    * Gauch recently looks not running. There is no html page linked from summary page. We will check the details later.
Line 192: Line 1414:
    * we are collecting your comments on the proposal [[https://dcc.ligo.org/G2201168|slide]]
    * In the current proposal, the shift is 12 hour shift and it continue one week. The effort is 7/250*100 = 2.8% (in the case of 250 days for working day).
   * Update contents of summary page? (Oshino)
    * YamaT-san updated the guardian for VIS. This update should be included in summary page. [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14395|slide]]

-----
=== 20220822 (Mon.) ===
 * Agenda
   * Announcement
    * Task list for 2022
   * KAGRA commissioning reports (Yokozawa) [[KAGRA/Subgroups/DET/Meeting/220822|Commissioning220822]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
   * DQR update (Yuzurihara)
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
   * Noise hunting by machine learning and Hveto (Kyujin/Kihyun)
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)
 * Minutes
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    * No update. Oshino-san will investigate the conda environment for summary page
   * DQR update (Yuzurihara)
    * `Offline Event Validation in O4` was presented in the last OPS call [[https://dcc.ligo.org/G2201168|slide]]
    * They proposed the basic strategy for Offline Event Validation in O4.
    * If you have an opinion for how much KAGRA will contribute for the volunteer, please let us know.
   * Update contents of summary page? (Oshino)
    * definition for locked state was changed. Stability of summary page job has improved.
   * Combine DET computer resources into one DET cluster at Kamioka site
    * DET computer was moved to SK building
   * Noise hunting by machine learning and Hveto (Kyujin/Kihyun)
    * paper writing is on-going
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)
    * no update

-----
=== 20220808 (Mon.) ===
 * Agenda
   * Announcement
    * Task list for 2022
    * Next detchar meeting will be canceled due to summer holiday
   * KAGRA commissioning reports (Yokozawa) [[KAGRA/Subgroups/DET/Meeting/220808|Commissioning220808]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
   * DQR update (Yuzurihara)
    * no update
   * Pastavi update (Yuzurihara)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21695|klog#21695]]
   * Update contents of summary page? (Oshino)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21680|klog#21680]]
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21629|klog#21629]]
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21617|klog#21617]]
   * Combine DET computer resources into one DET cluster at Kamioka site
   * Noise hunting by machine learning and Hveto (Kyujin/Kihyun)
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)


-----
=== 20220801 (Mon.) ===
 * We cancel the meeting due to f2f meeting.

-----
=== 20220725 (Mon.) ===
 * Agenda
   * Announcement
    * next KAGRA face-to-face meeting will be held on August 1~3 (hybrid style) [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2022August|web]]
    * DetChar chief submitted the task list for 2022. DetChar member will need the register each task.
   * KAGRA commissioning reports (Yokozawa) [[KAGRA/Subgroups/DET/Meeting/220725|Commissioning220725]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
   * DQR update (Yuzurihara)
    * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14197|slide]]
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21561|klog#21561]]
   * Update contents of summary page? (Oshino)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21559|klog#21559]]
   * Combine DET computer resources into one DET cluster at Kamioka site
   * Noise hunting by machine learning and Hveto (Kyujin/Kihyun)
   * Update of `veto definition` / environment on m31 (Uchikata, Narikawa)

-----
=== 20220711 (Mon.) ===
 * Agenda
   * Announcement
    * next KAGRA face-to-face meeting will be held on August 1~3 (hybrid style) [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2022August|web]]
    * Registration deadline is July 15 (Fri) 18:00 JST
    * DetChar chief submitted the task list for 2022. DetChar member will need the register each task.
    * We plan to cancel next DetChar meeting 7/18 due to Japanese holiday.
   * KAGRA commissioning reports (Yokozawa) [[KAGRA/Subgroups/DET/Meeting/220711|Commissioning220711]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
   * DQR update (Yuzurihara)
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
   * Noise hunting by machine learning and Hveto (Kyujin)
   * Overview of `veto definition` (Uchikata, Narikawa)
 * Minutes
   * KAGRA commissioning reports (Yokozawa) [[KAGRA/Subgroups/DET/Meeting/220711|Commissioning220711]]
    * no update
   * DQR update (Yuzurihara)
    * [[ https://klog.icrr.u-tokyo.ac.jp/osl/?r=21373|klog#21373]]
    * I tested the retry option to treat the issue that condor job failed. But, this option doesn't work, probably because we are using DAG.
    * But, we plan to move the place to run DQR to the upper stream. This might not be necessary.
   * Update contents of summary page? (Oshino)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21376|klog#21376]] [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21429|klog#21429]]
    * Last week, summary process stopped twice due to unknown reason. We need to monitor carefully.
   * Noise hunting by machine learning and Hveto (Kyujin)
    * One or two week later, the report by applying Hveto to O3GK data will appear.
   * Overview of `veto definition` (Uchikata, Narikawa)
    * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14174|slide]]
    * They worked on testing DetChar tools and veto definer on m31.
    * Uchikata-san and Narikawa-san will be the contact person to connect detchar and data analysis group.

-----
=== 20220704 (Mon.) ===
 * Agenda
   * Announcement
    * next KAGRA face-to-face meeting will be held on August 1~3 (hybrid style) [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2022August|web]]
   * KAGRA commissioning reports (Yokozawa) [[KAGRA/Subgroups/DET/Meeting/220704|Commissioning220704]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
   * DQR update (Yuzurihara)
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
   * Proposal of noise hunting tool by machine learning (Kyujin)
   * Task list for 2022 from Jan 2022 to Dec 2022)
 * Minutes
   * DQR update (Yuzurihara)
    * no report. Recently no DQR call
   * Update contents of summary page? (Oshino)
    * Added the page for newly installed accelerometer [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21347|klog#21347]]
    * Recently process for summary page is unstable [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21348|klog#21348]] [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21345|klog#21345]] [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21286|klog#21286]]
   * Proposal of noise hunting tool by machine learning (Kyujin)
     * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14147|slide]]
   * Task list for 2022 from Jan 2022 to Dec 2022)
    * Yuzurihara submitted the task list. Next, subgroup member will require the register each task.

-----
=== 20220627 (Mon.) ===
 * Agenda
   * Announcement
    * LIGO DetChar F2F is July 18-19 with noise sprint July 20-22. In person + remote style [[https://wiki.ligo.org/DetChar/Jul2022DetCharF2F|wiki]]
    * next KAGRA face-to-face meeting will be held on August 1~3 (hybrid style) [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2022August|web]].
    * Proposal of KAGRA DetChar f2f meeting.
     * Kashiwa? Kamioka?
     * Off-site members will join?
   * KAGRA commissioning reports (Yokozawa) [[KAGRA/Subgroups/DET/Meeting/220627|Commissioning220627]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
   * DQR update (Yuzurihara)
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
   * Task list for 2022 from Jan 2022 to Dec 2022)
 * Minutes
   * DQR update (Yuzurihara)
    * no update
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
    * no update
   * Task list for 2022 from Jan 2022 to Dec 2022)
    * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14147&version=1|slide]]

-----
=== 20220620 (Mon.) ===
 * Agenda
   * Announcement
    * LIGO DetChar F2F is July 18-19 with noise sprint July 20-22. In person + remote style [[https://wiki.ligo.org/DetChar/Jul2022DetCharF2F|wiki]]
    * Joint LVK DetChar report to the OPsDiv Meeting on 2022/06/16 [[https://dcc.ligo.org/G2200999|slide]] [[https://wiki.ligo.org/Operations/Agenda220616|minutes]]
    * LIGO, VIRGO AND KAGRA OBSERVING RUN PLANS [[https://observing.docs.ligo.org/plan/|web]] (15 June 2022 update)
    * next KAGRA face-to-face meeting will be held on August 1~3 (in-person style@U-Tokyo, Hongo campas + online style). The registration will start soon.
   * KAGRA commissioning reports (Yokozawa) [[KAGRA/Subgroups/DET/Meeting/220620|Commissioning220620]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
   * DQR update (Yuzurihara)
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
 * Minutes
   * face-to-face meeting for KAGRA detchar@Kamioka
    * (Yuzurihara) if you have a comment/opinion, please let me know.
   * DQR update (Yuzurihara)
     * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21190|klog#21190]]
     * sometimes DQR jobs failed, because the MDC trigger time is earlier than the time the latest frame file was generated.
     * One of solutions is to run DQR at upper stream on DGS network called DMT network.
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
     * no report
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
     * no update
-----
=== 20220613 (Mon.) ===
 * Agenda
   * Announcement
    * LIGO DetChar F2F is July 18-19 with noise sprint July 20-22. In person + remote style [[https://wiki.ligo.org/DetChar/Jul2022DetCharF2F|wiki]]
    * New paper about DQ for pyCBC [[https://arxiv.org/abs/2204.03091|arXiv]]
   * KAGRA commissioning reports (Yokozawa)
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
   * DQR update (Yuzurihara)
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
 * Minutes
   * KAGRA commissioning reports
    * Explained by Yokozawa-san. see [[KAGRA/Subgroups/DET/Meeting/220613|KAGRA detector status220613]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
   * DQR update (Yuzurihara)
    * Task to compute inspiral range is running on k1det1 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20986|klog#20986]]
   * Update contents of summary page? (Oshino)
    * Updated DetChar and VIS tab [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21060|klog#21060]]

-----
=== 20220606 (Mon.) ===
 * Canceled due to conflict with KIW9

-----
=== 20220530 (Mon.) ===
 * Agenda
   * Announcement
    * The 9th KAGRA International Workshop (KIW) [[https://indico.itp.ac.cn/event/123/|web]] (registration by May 31, 2022)
    * JPS meeting : registration by June 2 [[https://www.jps.or.jp/activities/meetings/autumn/autumn_index.php|web]]
     * Question : Someone should present the status of DetChar and activity toward O4?
    * LIGO DetChar F2F is July 18-19 with noise sprint July 20-22. In person + remote style [[https://wiki.ligo.org/DetChar/Jul2022DetCharF2F|wiki]]
    * Final KAGRA report at OpsDiv call was done at May. 26, 2022 [[https://dcc.ligo.org/LIGO-G2200869|slide for May 26]]
   * KAGRA commissioning reports
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
   * DQR update (Yuzurihara)
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
 * Minutes
   * KAGRA commissioning reports
    * Pumping down of EY started at 2022 May 24 9:45~ [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20851|klog#20851]]
    * Pumping down of IY started at 2022 May 25 9:35~ [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20874|klog#20874]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    * hveto worked with omicron triggers generated by a new version of Omicron
      * There seems to be no compatibility between omicron version we use and one in igwn-py39.
      * There may be also no compatibility between SummaryPages we use and omicron in igwn-py39.
      * If so, we need to move igwn-py39 for all tools (SummaryPages, omicron, hveto etc.)
      * SummaryPages in igwn-py39 had worked well in gps mode (reported a few weeks ago).
      * TY want to gather the volunteer to test SummaryPages in daily mode.
    * gwpy can use 'NDSSERVER' environmental variable
      * We don't need to do the code hack for nds2.py in gwpy.
    * (Yuzu) In DAC call, I heard that operation test of `gw_data_find` is on-going on m31 by Compu&Soft members. It may be available in a few week.
   * DQR update (Yuzurihara)
    * I prepared the code of one task to compute inspiral range at the time of GW alert.
    * I send the merge request [[https://git.ligo.org/detchar/dqrtasks|git repo]] and will take the review.
   * Update contents of summary page? (Oshino)
    * Update SummaryPages web server by YamaT [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20926|klog#20926]]

-----
=== 20220523 (Mon.) ===
 * Agenda
   * Announcement
    * New accounts for accessing LIGO resources (registration by May 22)
    * The 9th KAGRA International Workshop (KIW) [[https://indico.itp.ac.cn/event/123/|web]] (registration by May 31, 2022)
    * Final KAGRA report at OpsDiv call is planned at May. 26, 2022 [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14010|slide for Mar 31]][[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=13890|slide for Feb 17]]
    * JPS meeting : registration by June 2 [[https://www.jps.or.jp/activities/meetings/autumn/autumn_index.php|web]]
   * KAGRA commissioning reports
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    * call for volunteers from remote site, to test hveto and FScan. Please let us (Yuzuriahra or YamaT) know.
   * DQR update (Yuzurihara)
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
 * Minutes
   * KAGRA commissioning reports
    * In-air health check for suspensions (ITMY, ETMY) was by Ushiba and other members.
    * On last Friday, we had the acceptance check to close the chamber for Yarm. It passed.
    * ADC glitch problem on many suspensions by YamaT [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20815|klog#20815]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
     * hveto itself worked without no additional code hack.
     * Compatible error in trigger file format was occurred
       * {{{The 'peak' columns have incompatible types: ['object', 'float64', 'float64']}}}
       * In TY's remember, Kozakai-san faced and solved same problem...(?)
     * TY want to re-arrange cluttered O3-segments including test ones.
     * (Yuzu) This error is related to [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19846|klog#19846]] ?
   * DQR update (Yuzurihara)
    * no update
   * Update contents of summary page? (Oshino)
    * Updated VIS page. see [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20814|klog#20814]]
   * Analysis of transient signals of IMMT1 (Aogaku members)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20793|klog#20793]]
 
-----
=== 20220516 (Mon.) ===
 * Agenda
   * Announcement
    * Vigo DetChar paper [[https://arxiv.org/abs/2205.01555|arXiv]]
    * The 9th KAGRA International Workshop (KIW) [[https://indico.itp.ac.cn/event/123/|web]] (registration by May 31, 2022)
    * GWADW2022 [[https://indico.icrr.u-tokyo.ac.jp/event/255/|web]] (registration closed)
    * The GRAvitational - wave Science&technology Symposia (GRASS 2022) [[https://agenda.infn.it/event/30681/|web]] (registration closed)
    * (Final) KAGRA report at OpsDiv call is planned at May. 26, 2022 [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14010|slide for Mar 31]][[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=13890|slide for Feb 17]]
   * KAGRA commissioning reports
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
    * call for volunteers from remote site, to test hveto and FScan. Please let us (Yuzuriahra or YamaT) know.
   * DQR update (Yuzurihara)
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
   * Report of new tool development? (Darkhan)
   * Glitch subtraction survey for O4
    * see mail from Davis Derek (2022 May 3)
    * deadline : May 16
    * The glitch subtraction activities are managed under DET.
    * [[https://wiki.ligo.org/DetChar/O4GlitchSubtractionTools|current summary]]

 * Minuts
   * Announcement
    * If you talk about DetChar activity, please let chairs know
   * KAGRA commissioning reports
    * In-air health check for suspensions (ITMY, ETMY) is on-going by Ushiba [[ https://klog.icrr.u-tokyo.ac.jp/osl/?r=20724|klog#20724]] [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20729|klog#20729]]
    * Turned "ON" two radiation shield coolers for EXC. But, on Sunday, it turned off due to mistake [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20712|klog#20712]] [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20736|klog#20736]]
   * DQR update (Yuzurihara)
    * Operation test for DQR application is on-going on DetChar dedicated machine
    * From last Wednesday, the alert from MDC stopped (I'm not sure this is scheduled or not...)
     * That is because 1st period of MDC finished
    * The code review will start gradually
    * You can see the summary report of MDC alert on [[https://gracedb-playground.ligo.org/reports/|GraceDB]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
    * FScan cannot find IGWN.
      * YamaT plan to use it which is a part of lalpulsar packages.
    * Trigger files are required for hveto test.
      * YamaT plan to do the consistency check with O3 triggers and the configuration file.
      * Trigger files are on the DET file server and they must be mounted from the test server.
      * Oshino-san will share a past configuration file.
   * Update contents of summary page? (Oshino)
    * summary page is working well
   * Combine DET computer resources into one DET cluster at Kamioka site
    * no update
   * Report of new tool development? (Darkhan)
    * debugging code

-----
=== 20220509 (Mon.) ===
 * Agenda
   * Announcement
   * KAGRA commissioning reports
    *
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
    * call for volunteers from remote site, to test hveto and FScan. Please let us (Yuzuriahra or YamaT) know.
   * DQR update (Yuzurihara)
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
   * Report of new tool development? (Darkhan)
   * Glitch subtraction survey for O4
    * see mail from Davis Derek (2022 May 3)
    * deadline : May 16
    * The glitch subtraction activities are managed under DET. I would like to ask regular report in DET meeting.

 * Minuts
   * Announcement
   * KAGRA commissioning reports
    * ADC noise measurement [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20658|klog#20658]]
    * In-air health check for Yarm suspensions (ITMY and ETMY) is on-going.
     * If no problem, review will be done next week and pumping down will start on week of May 23
   * DQR update (Yuzurihara)
    * no update
   * Report of new tool development? (Darkhan)
    * add channel list?

-----
=== 20220502 (Mon.) ===
 * Agenda
   * Announcement
   * KAGRA commissioning reports
    * PRM cause the glitch in IMMT1 OPLEV signal and POP forword QPD signal [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20539|klog#20539]]
    * In-air health check for suspensions (ITMY, ETMY) is on-going by Ushiba [[ https://klog.icrr.u-tokyo.ac.jp/osl/?r=20631|klog#20631]] [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20632|klog#20632]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
    * call for volunteers from remote site, to test hveto and FScan. Please let us (Yuzuriahra or YamaT) know.
   * DQR update (Yuzurihara)
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
   * Report of new tool development? (Darkhan)
   * Data Quality flag for O4a
    * We are asking the concrete requirement for DAC members (CBC, burst, Stochastic)
    * This is related to discuss the ER period and time
   * Analysis of TCam photos of ITMY and ETMY with the metal scale by Tcam
 * Minutes
   * Announcement
    * GWADW2022 [[https://indico.icrr.u-tokyo.ac.jp/event/255/|web]]
    * The 9th KAGRA International Workshop (KIW) [[https://indico.itp.ac.cn/event/123/|web]]
    * The GRAvitational - wave Science&technology Symposia (GRASS 2022) [[https://agenda.infn.it/event/30681/|web]]
   * DQR update (Yuzurihara)
    * no update.
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
    * no update
   * Update contents of summary page? (Oshino)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20634|klog#20634]]
   * Analysis of TCam photos of ITMY and ETMY with the metal scale by Tcam [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20574|klog#20574]]
    * analysis is on-going by Aogaku students. Report will appear soon.

-----
=== 20220425 (Mon.) ===
 * canceld
-----
=== 20220418 (Mon.) ===
 * Agenda
   * Announcement
    * monthly maintenance for JGWDoc + JGW wiki + klog on April 18 13:00-16:00 JST.
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
    * call for volunteers from remote site, to test hveto and FScan. Please let us (Yuzuriahra or YamaT) know.
   * DQR update (Yuzurihara)
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
   * Report of new tool development? (Darkhan)
 * Minutes
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
     * No updates in last week.
     * Some volunteers for testing of hveto, fscan are sitll wanted.
     * We should start to test also iDQ from now on for future observing runs (O5, O6...)
   * DQR update (Yuzurihara)
    * operation test for tools is on-going without error and trouble
   * Update contents of summary page? (Oshino)
    * no update
   * Combine DET computer resources into one DET cluster at Kamioka site
    * no update
   * Report of new tool development? (Darkhan)
    * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14032|slide]]
   * 120Hz glitches investigation during O3GK
    * [[https://github.com/gw-detchar/tools/tree/master/Hveto/etc|configuration file]]
-----
=== 20220411 (Mon.) ===
 * Agenda
   * Announcement
    * Workshop 2022/04/15 [[https://indico.in2p3.fr/event/26414/program|web page]]
     * DetChar talk is planed by Yokozawa. When he circulates slide, put comments on slide.
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
    * call for volunteers from remote site, to test hveto and FScan. Please let us (Yuzuriahra or YamaT) know.
   * Exchange of opinions between DET members(YamaT, Sawada(OPS), Yuzurihara) and DMG members(Kanda, Oohara)
   * DQR update (Yuzurihara)
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
    * (Oshino) explain idea, goal, and timeline
   * Report of new tool development? (Darkhan)
   * Follow-up report of remote contribution from Aoyama Gakuin univ.
 * Minutes
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
     * no volunteer yet (Test of hveto and FScan).
       * Coding kagradata.py for the new version of Bruco is ongoing.
       * We need to decide KAGRA common rule about NDS2 and DATAFIND for fixing codes.
     * NAPT test was started for the purpose of saving number of IP address in DGS network.
       * DET gateway (copy of k1gate is enough for the test) will be connected to DGS network.
         * Other nodes will be under DET gateway.
       * It may be better to construct the gateway as Deb10. (Copy of k1gate is Rocky8)
         * TY have no experience of constructing NAPT on Debian.
       * NDS(k1nds[012]), NFS(k1nfs0) services must be available from under DET gateway.
       * How should we do k1det2 which is used for Bruco running from CDS workstation.
   * Exchange of opinions between DET members(YamaT, Sawada(OPS), Yuzurihara) and DMG members(Kanda, Oohara)
    * related to conda environment and DQR tasks
    * in Kashiwa server and Kamioka computers, we should have common rule fo NDS2 and DATAFIND, which YamaT already mentioned.
   * DQR update (Yuzurihara)
    * the application to connect between igwn-alert and Task Manager was developped by Joe
    * DQRAlert [[https://git.ligo.org/o4-dqr/dqralert|git repo]]
    * I tried to run this tool in Kamioka computer and it is working well.
    * need to prepare the document of how to use this tool on wiki page.
    * [[https://git.ligo.org/o4-dqr/dqralert/-/blob/trunk/docs/source/overview.rst|DQR workflow]]
   * Update contents of summary page?
    * no update
   * Combine DET computer resources into one DET cluster at Kamioka site
    * goal : prepare job management server and can submit job to k1det[012]
    * timeline : before O4
    * there might be conflict between this cluster and NAPT test. Oshino and YamaT will discuss.
   * Follow-up report of remote contribution from Aoyama Gakuin univ.
    * (Yokozawa, Oshino, Yuzurihara) we started the discussion of task list and how to contribute from remote site.
-----
=== 20220404 (Mon.) ===
  * Agenda
    * Announcement
     * DQR design document, put comments on [[https://git.ligo.org/detchar/o4-data-quality-report-design-document/-/issues?label_name%5B%5D=Second+circulation|git issue]]
     * Workshop 2022/04/15
      * [[https://indico.in2p3.fr/event/26414/program|Workshop on the development of innovative tools for new collaborations within gravitational wave detection experiments]]
     * KAGRA's authorship submission. For details, see [kagra 05009]. Deadline April 8 17:00 JST
    * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
    * DQR update
    * Update of summary page
    * Trouble of Omicron trigger generation
    * 120Hz glitches investigation during O3GK
  * Minutes
    * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
      * Installation of IGWN was done on k1detfs.
        * Too slow HDD response? (~150KB/s via NFS)
      * Works well
        * SummaryPages as GPS-select mode
          * ini-file grammar is slightly changed from the old version.
        * Omicron
          * No special hack
        * Omega-scan
          * needs temporal code hack
        * Bruco
          * needs preparation for reading kagra data (kagradata.py)
          * No {{{--include}}} option in original one.
      * Not yet
        * SummaryPages as Daily mode (This will be done by Kamioka people)
        * hveto
        * FScan
          * Not included in IGWN environment?
      * Problem
        * No global NDS2, DataFind servers or equivalent way.
          * SSH port forwarding is not enough because port number is different depending on person.
          * So I cannot do the code hack on IGWN software in the system region.
        * KAGRA env may not be able to be included in IGWN until O4.
          * If so, we shouldn't use IGWN in officially for O4.
     * (Lupin) igwn-py38? or py39?
     * YamaT asked status of FScan
     * In future, we need to prepare similar environment on Kashiwa cluster. The environment is not completely same as Kamioka computers.
     * We need volunteers from remote site, to test hveto and FScan. Please let us (Yuzuriahra or YamaT) know.
    * DQR update (Yuzurihara)
     * Operation test for new version of Task Manager is on-going on k1det1.
     * I found that code of stationary task uses `datafind` to read gwf data, which we don't have.
     * I need to consider how to read data for DQR tasks.
      * (Darkhan) Is there any way to get the latest list of channels?
      * (Yuzurihara) If you can specify the name of frame data, there is a function on gwpy.
    * Update of summary page (Oshino)
     * no update
    * Trouble of Omicron trigger generation (Oshino)
     * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20328|klog#20328]]
     * replaced the local SSD on k1sum1. The Omicron triggers are stored in different disk.
    * 120Hz glitches investigation during O3GK
     * no update
     * Kihyun can't join for a while. This project will be postponed.
    * Report of new tool development (Darkhan)
     * showed demonstration
     * this tool can take a ratio between channels and will be able to apply time-domain filter (band pass/highpass/lowpass) in future.
-----
=== 20220328 (Mon.) ===
  * Agenda
    * Announcement
     * DQR design document, put comments on [[https://git.ligo.org/detchar/o4-data-quality-report-design-document/-/issues?label_name%5B%5D=Second+circulation|git issue]]
     * Workshop 2022/04/15 [[https://indico.in2p3.fr/event/26414/program|Workshop on the development of innovative tools for new collaborations within gravitational wave detection experiments]]
    * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
    * Activity report by students from Aoyama Gakuin univ.
     * glitch investigation related to IMMT1 oplev (Aoyama Gakuin univ.)
     * Tcam image analysis to identify mirror location and center (Aoyama Gakuin univ.)
    * DQR update
    * Update of summary page
    * 120Hz glitches investigation during O3GK

 * Minutes
  * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
   * YamaT constructed the test environment in local computer
   * Although YamaT is copying the environment to DetChar computers, it is very slow. (speed ~ 250KB/s)
   * After copying, YamaT will work on modification of codes to fit KAGRA data, such as nds2.py
   * For testing the tools (Omicron, Hveto...), we need volunteers, especially remote site!
  * Activity report by students from Aoyama Gakuin univ.
   * five students and two staff members from Aoyama Gakuin univ. stayed Kamioka site during last three weeks.
   * They helped commissioning work both in tunnel [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20124|klog#20124]] [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20155|klog#20155]] and in control room.
   * several code developments to understand glitch cause have been done. [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20026|klog#20026]] [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20027|klog#20027]]
   * code development to identify mirror center of ITMX have been done by using image analysis. [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14003|slide(Japanese)]] [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20036|klog#20036]] [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20198|klog20198]] [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20203|klog#20203]]
  * DQR update
   * Joe updated Task Manager. Yuzurihara will install new version and test it.
  * Update of summary page
   * no update
  * 120Hz glitches investigation during O3GK
   * no update

-----
=== 20220307 (Mon.) ===
  * Agenda
    * announcement
     * LVK meeting March 2022 [[https://wiki.ligo.org/LSC/Meeting/LVKMeetingMarch2022|wiki]] [[https://cgca.uwm.edu/events/2021lvk|web]]
      * registration is available
    * 120Hz glitches investigation during O3GK
    * unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
    * DQ flags for O4
    * DQR update
    * glitch investigation related to IMMT1 oplev
 * Minutes
    * 120Hz glitches investigation during O3GK
     * no update
    * unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
     * YamaT is working on this project at test-server.
     * Test of new conda environment will start from next week (after JPS meeting)
    * DQ flags for O4
     * no update
    * DQR update
     * Joe is developing the code to connect between igwn-alert and TaskManager. It will be available soon.
     * Schedule for review
      * Review of Task Manager will be done before review of each task.
      * High priority task needs to complete before Aug. 2022
      * Low priority task needs to complete before Nov. 2022
    * glitch investigation related to IMMT1 oplev
     * From March 8, students from Aoyama Gakuin univ. stayed at Kamioka
     * They worked on the investigation of glitch. [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20026|klog#20026]][[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20027|klog#20027]]
     * They checked IMMT1 QPD signals and PRM suspension signals at the time of glitch.
    * NDS2 tool development (Darkhan)
     * no major update.
    * GPS accuracy monitor (Oshino)
     * is available on [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/day/20220313/detchar/gps/|summary page]]
     * Current difference is acceptable and reasonable.
    * No meeting on March 21 due to Japanese holiday. Next meeting is planed on March 28.

-----
=== 20220307 (Mon.) ===
  * Agenda
    * announcement
     * RRT plan during O4 [[https://dcc.ligo.org/G2200220|slide]]
     * LVK meeting March 2022 [[https://wiki.ligo.org/LSC/Meeting/LVKMeetingMarch2022|wiki]] [[https://cgca.uwm.edu/events/2021lvk|web]]
      * registration is available
    * 120Hz glitches investigation during O3GK
    * unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    * DQ flags for O4
    * DQR update
  * Minutes (Yuzurihara)
   * 120Hz glitches investigation during O3GK
    * no update
   * unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    * There are many computers/workstations in Kamioka site or Kamioka control room.
    * Workstations (k1ctr*) use common conda environment by mounting the file server.
    * In DetChar computers k1{sum,det}[01], conda environment should be unified all DetChar resources, similar to workstations.
    * To prevent the trouble that DetChar experts might break the environment, the conda environments will be set as read-only permission.
    * Installation will be done by Kamioka members. After that, we need volunteers to test the DetChar tools on new conda environment.
    * what is the time line?
     * Installation will finished before the end of March. From April, the test will start. Volunteers are helpful.
   * DQ flags for O4
    * In last PEM meeting, Yuzurihara presented the current status and received the helpful comments. [slide](https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=13970)
    * We will change our plan to construct the data quality flag and will compute the BLRMS of gwpy to set the threshold.
    * The review is necessary before O4. (probably very close to O4, because we need ER)
   * DQR update
    * no update
   * Commissioning of GreenX
    * In the last weekend, the commissioner tried continuous GreenX. During that trials, they found many short term lock loss (~10 ms). 10 ms is too short to follow the suspension motion, so it is likely that there are some causes of the lock loss except for the suspension motion.
    * The commissioner needs helps DetChar members to identify the cause or give a hint of the cause.
    * For details, see [[https://klog.icrr.u-tokyo.ac.jp/osl/index.php?r=19963|klog#19963]] [[https://klog.icrr.u-tokyo.ac.jp/osl/index.php?r=19983|klog#19983]]
    * main channel K1:TMS-X_GR_PDA1_OUT_DQ
    * time : 2022 Mar 06 23:37:50 UTC = 2022 Mar 07 8:37:50 JST = GPS time 1330645088


-----
=== 20220228 (Mon.) ===
  * Agenda
    * 120Hz glitches
    * DQ flags for O4
    * progress of DQR
    * lock loss study of GreenX

  * Minutes (Yuzurihara)
    * accouncement
     * LVK meeting March 2022 [[https://wiki.ligo.org/LSC/Meeting/LVKMeetingMarch2022|wiki]] [[https://cgca.uwm.edu/events/2021lvk|web]]
      * registration is available
      * Wed, 17 March 2021:
       * Plenary Session #1 (09:00-10:30 US/CDT) (=3/16 23:00 JST)
       * Paper Presentation Session #1
       * Plenary Session #2 (16:00-17:30 US/CDT) (=3/17 6:00 JST)
      * Thu, 18 March 2021:
       * Plenary Session #3 (09:00-10:30 US/CDT) (=3/17 23:00 JST)
       * Paper Presentation Session #2
       * Plenary Session #4 (16:00-17:30 US/CDT) (=3/18 6:00 JST)
     * Pastavi server will be unavailable tonight
       * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19913|klog#19913]]
    * 120Hz glitches
     * no update
    * DQ flags for O4
     * no update
    * progress of DQR
     * igwn-alert is running more than 9days and receiving the MDC alert
     * next step is to connect the MDC alert with the launch TaskManager.
     * remained task is to develop InspiralRange [[https://git.ligo.org/detchar/dqrtasks/-/issues/8|issue]]
    * lock loss study of GreenX
     * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19906|klog#19906]]
     * From the Hveto result, the channel (K1:IMC-SERVO_MIXER_DAQ_OUT_DQ) was the most coincident channel with the lock loss of GreenX.
    * unify the detchar computing environment (YamaT)
     * scattered codes and applications (Omicron, summary page, ) over Kamioka computers are troubling.
     * we plan to unify the environment by using igwn conda
     * detail will be reported in next meeting
     * (Darkhan) conda environment on k1ctr*. someone accidentally update someone's conda environment. administrator should prepare the conda environment?
     * (YamaT) k1ctr* share the environment. this activity is not related to k1ctr* but k1sum[01], k1det[012]. we should separate the user environment and the environment for the DET tools
     * (Darkhan) should avoid accidental mistake.

-----
=== 20220221 (Mon.) ===
  * Agenda
    * 120Hz glitches
    * DQ flags for O4
    * progress of DQR

  * Minutes
    * 120Hz glitches
      * No updates
    * DQ flags for O4
      * No updates
    * progress of DQR
      * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19847|klog#19847]]
    * Proposal new tool to see past data by NDS (Darkhan)

-----
=== 20220207 (Mon.) ===
  * Agenda
    * 120Hz glitches
    * Report from [[https://wiki.ligo.org/DetChar/JanFeb2022DetCharF2F|LIGO Detchar F2F Meeting]]
    * DQ flags for O4
    * progress of DQR
  * Minutes
    * 120Hz glitches
      * No updates
    * DQ flags for O4
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=13851|slide]]
      * (Yuzurihara) read BLRMS data and made the several plots with 1% and 99% percentile.
      * When KAGRA will be locked as observation mode?
       * hopefully after july, there will be lock trial for two monthes(?)
      * When you set the 1% criteria, always you throw away the 1% data?
       * We might need to consider the better procedure to care that point.
    * progress of DQR
      * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19671|klog#19671]]

-----
=== 20220131 (Mon.) ===
  * Agenda
    * 120Hz glitches
    * Report from DQR hackathon
    * DQ flags for O4
    * Master thesis (Morisue-san)

-----
=== 20220117 (Mon.) ===
  * Agenda
    * 120Hz glitches
    * ITMX glitches
    * DQR progress
    * DQ flags for O4
  * Minutes
    * 120Hz glitches
      * No updates
      * Next step is coincidence search with signals around ETMY including local control sensors.
    * ITMX glitches
      * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19212|klog#19212]]
      * K1:VIS-ITMX_F3_LVDTINF_GAS_{IN1,OUT} have glitches.
      * It seems to occur around AA chassis. (AA and cable replacement didn't help to improve situation).
      * We will try to find glitches on other channels on the same ADC board.
      * This channel should be added to Omicron search on SummaryPages.
    * DQR progress
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=13721|JGW-G2213721]]
    * DQ flags for O4
      * No updates
    * O3GK paper
      * Threshold used for computing a glitch rate was changed as SNR=6.5.
      * It's a same criterion with LIGO, and Virgo.
      * Both GEO and KAGRA's results are now computed and draft was also updated.		     * I asked the remote help to Derek. I'm submitteing the application for the ICRR computer account.
   * IPC glitch
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28025|Summary of recent segment for IPC glitch (2023/11~12)]]
   * Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28194|2023-05-24 ~ 06-07 O4a hveto results]]
    * The analysis for the remained date will be
   * Update contents of summary page (Oshino)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28057|Modified configuration files of SummaryPage]]
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=28247|Modified configuration file on SummaryPage]]
Line 918: Line 1426:
  * [[KAGRA/Subgroups/DET/Meeting/2023|2023]]
  * [[KAGRA/Subgroups/DET/Meeting/2022|2022]]

Meetings

  • Meeting time: 11:00-11:30 JST/KST on every Wednesday
  • Meeting room: Zoom3

Contents

  1. Meetings
    1. Agenda & Minutes
      1. 20241225 (Wed.)
      2. 20241204 (Wed.)
      3. 20241127 (Wed.)
      4. 20241120 (Wed.)
      5. 20241113 (Wed.)
      6. 20241106 (Wed.)
      7. 20241030 (Wed.)
      8. 20241023 (Wed.)
      9. 20241016 (Wed.)
      10. 20241009 (Wed.)
      11. 20241002 (Wed.)
      12. 20240911 (Wed.)
      13. 20240904 (Wed.)
      14. 20240807 (Wed.)
      15. 20240731 (Wed.)
      16. 20240724 (Wed.)
      17. 20240717 (Wed.)
      18. 20240710 (Wed.)
      19. 20240703 (Wed.)
      20. 20240626 (Wed.)
      21. 20240619 (Wed.)
      22. 20240612 (Wed.)
      23. 20240605 (Wed.)
      24. 20240529 (Wed.)
      25. 20240515 (Wed.)
      26. 20240508 (Wed.)
      27. 20240424 (Wed.)
      28. 20240410 (Wed.)
      29. 20240403 (Wed.)
      30. 20240326 (Wed.)
      31. 20240306 (Wed.)
      32. 20240228 (Wed.)
      33. 20240221 (Wed.)
      34. 20240214 (Wed.)
      35. 20240207 (Wed.)
      36. 20240131 (Wed.)
      37. 20240124 (Wed.)
      38. 20240117 (Wed.)
      39. Past meeting

Agenda & Minutes

20241225 (Wed.)

  • Agenda
    • Announcement
      • O4b schedule:
      • Scheduled conference
        • LVK meeting: 2024/03/24-27 @Albert Park, Melbourne, Australia
        • GWADW 2025: 2024/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront

        • Amaldi & GR: 2024/07/14-18 @Scottish Exhibition Centre, Glasgow, UK web

        • ICRC 2025: 2024/07/15-24 @Geneva (Switzerland) web

      • KAGRA site report 12/11

      • The chairs finished the input of FTE of KAGRA detchar in OpsDiv White Paper. git

      • Selection of KAGRA detchar chair

      • Migration from gw-astronomy (see Takahashi-san's mail) by Dec 18

      • KAGRA Instrument Science White Paper 2024 draft

      • Next meeting: 2025/01/08
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)

      • lock loss study in the commissioning (YamaT, Yuzurihara) web

      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes
    • Commissioning support

      • Recovery of Noise Budget page on SummaryPage klog

      • Violin modes moving klog

      • Comment to Helper guardian for lockloss check klog

      • lockloss investigartion report klog

    • Pastavi noise budget for the theoretical noise data based on Komori-san's simulation code klog

    • Scattering light noise report (11/26) klog poster

20241204 (Wed.)

  • Agenda
    • Announcement
      • O4b schedule:
      • Scheduled conference

        • JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) web

        • KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus wiki

        • LVK meeting: 2024/03/24-27 @Albert Park, Melbourne, Australia
        • GWADW 2025: 2024/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront

        • Amaldi & GR: 2024/07/14-18 @Scottish Exhibition Centre, Glasgow, UK web

        • ICRC 2025: 2024/07/15-24 @Geneva (Switzerland) web

      • KAGRA site report 11/27

      • An update of the OpsDiv White Paper is underway. The update of the part related to KAGRA DetChar was finished.

      • Selection of KAGRA detchar chair

      • Migration from gw-astronomy (see Takahashi-san's mail) by Dec 18

      • KAGRA Instrument Science White Paper 2024 draft

      • Next meeting:
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)

      • lock loss study in the commissioning (YamaT, Yuzurihara) web

      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes
    • Commissioning support

      • Changed configuration files of DET tools klog

      • DET report on 11/25 klog

    • Pastavi

      • Pastavi update: Noise budget mode came back online klog

    • Update segment lists and cache files during power outage klog

20241127 (Wed.)

  • The meeting was canceled due to the onsite recovery work from the earthquake (11/26 22:47 JST).

20241120 (Wed.)

  • Agenda
    • Announcement
      • O4b schedule:
      • Scheduled conference

        • JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) web

        • KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus wiki

        • LVK meeting: 2024/03/24-27 @Albert Park, Melbourne, Australia
        • GWADW 2025: 2024/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
        • KIW12: 2024/05/26~27 @Shanghai, China

        • Amaldi & GR: 2024/07/14-18 @Scottish Exhibition Centre, Glasgow, UK web

      • KAGRA site report 11/13

      • Update of OpsDiv White Paper is underway. The update of part related to KAGRA DetChar was finished.

      • Selection of KAGRA detchar chair
      • Power outage in Kashiwa campus
        • KAGRA Main Data Server was down. Now the system-B is online.

      • Migration from gw-astronomy (see Takahashi-san's mail) by Dec 18

      • Next meeting: November 27
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)

      • lock loss study in the commissioning (YamaT, Yuzurihara) web

      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes

20241113 (Wed.)

  • Agenda
    • Announcement
      • O4b schedule:
      • Scheduled conference

        • JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) web

        • KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus wiki

        • GWADW 2025: 2024/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront

      • KAGRA site report 11/01

      • Update of OpsDiv White Paper is underway. The update of part related to KAGRA DetChar was finished.

      • Selection of KAGRA detchar chair
      • Regeneration of the Aggregated Data Set for KAGRA O4a Period
      • Power outage in Kashiwa campus
        • KAGRA Main Data Server was down. Now the system-B is online.
      • Next meeting: November 20 13:00 JST (usual meeting + presentation by Syifa)
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)

      • lock loss study in the commissioning (YamaT, Yuzurihara) web

      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes
    • Commissioning support

      • Labeling the lockloss by the ETMY oplev glitch klog

      • Lockloss during weekend klog

      • Lockloss investigation: 2024/11/04 23:29:09 JST klog

      • Automation of lockloss by ETMY oplev glitch web

    • Summary page

      • Tested new version of SummaryPage on test server klog

      • Restart Omicron process klog

      • Restart Hveto process klog

      • Trial to run the summary page on detchar cluster klog

      • Restart Fscan process klog

      • Is it earsy to treat changing IP address of the computer node? --> Probably easy

    • Line noise investigation

      • Violin modes moving klog

      • Sideband around lines appear klog

      • What is the definition of segment bar? --> K1:GRD-IFO_STATE_N == 100. It's better to use >= 100.

    • Scattered light noise

      • Analysis of the recent commissioning data by Shih-Hong Hsu slide

      • The origin of the scattered light noise was not changed during 10/7 14:00~21:00 UTC, because the frequency was same.
      • Coherence-spectrogram will be new window to investigate the scattered light noise. This time, they checked the coherence between DARM and PRCL and between DARM and MICH.

20241106 (Wed.)

  • Agenda
    • Announcement
      • O4b schedule:
      • Scheduled conference

        • JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) web

        • KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus

      • KAGRA site report 11/01

      • Update of OpsDiv White Paper is underway.

      • Chair of KAGRA OpsDiv and selection of KAGRA detchar chair

      • Next meeting: November 13
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)

      • lock loss study in the commissioning (YamaT, Yuzurihara) web

      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes
    • Commissioning support

      • lockloss investigation: 2024/11/05 09:51~10:46 JST klog

      • lockloss investigation for Unknown Lockloss list (nightly observing) 2024/10/16 22:13:41 JST klog

    • Summary page

20241030 (Wed.)

  • Agenda
    • Announcement
      • O4b schedule:
      • Scheduled conference

        • JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) web

        • KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus

      • KAGRA site report 10/18

      • Update of OpsDiv White Paper is underway.

      • Next meeting: November 6
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)

      • lock loss study in the commissioning (YamaT, Yuzurihara) web

      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes
    • Commissioning support

      • lockloss investigation: 2024/10/29 2024-10-29 08:38:10 JST klog

    • Summary page

      • Tested new version of SummaryPage klog

      • Due to a lack of memory in the computer, the process failed. Except for that, the process seems to be working well.

      • Modified the unit for IMC cavity noise on the SummaryPage klog

    • Pastavi

      • Pastavi update: added the button for channels related to ASC or VIS oplevs klog

    • Update from Kyujin
      • Syifa is preparing the defense of the master thesis. The defense is planned for December 4th.
      • It's better to give a brief presentation on the coming detchar meeting. After the defense, she will give a (poster) presentation at the coming f2f meeting.
    • Related to segment files (Uchikata, Narikawa)

      • They started the preparation of the veto definer file for O4a data, with GuoChin's help.

    • Line noise investigation

      • Takahiro S Yamamoto gave a presentation on the monitor tool development slide memo

      • The next task is to make the monitor to generate the plots and HTML automatically and put the attractive name of the monitor.
    • Scattered light noise

      • Shih-Hong, Hsu gave a presentation on the identification of the frequency. slide

      • When they generate the Q-transform plot, the script can identify the frequency of the scatter object.
      • During 2024/10/07 14:00-21:00, the frequency did not change significantly. The origin of the scattered light noise will be the same.
      • The discussion to have the separate meeting started.

20241023 (Wed.)

  • Agenda
    • Announcement
      • O4b schedule:
      • Scheduled conference

        • JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) web

        • KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus

      • KAGRA site report 10/18

      • Next meeting: October 30
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)

      • lock loss study in the commissioning (YamaT, Yuzurihara) web

      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes
    • Commissioning support

      • Added MICH and PRCL feedback signal on Gauch (non-Gaussian monitor) klog

      • Computation of expected improvement of inspiral range by noise subtraction of violin mode and mitigation of the noise bump klog

    • Summary page update

      • Added "IFO Lock" state to the OMC tabklog

      • Line noise investigation
      • Scattered light noise

20241016 (Wed.)

  • Agenda
    • Announcement
      • O4b schedule:
      • Scheduled conference

        • JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) web

        • KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus

      • KAGRA site report 10/02

      • Next meeting: October 23
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)

      • lock loss study in the commissioning (YamaT, Yuzurihara) web

      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes
    • Commissioning support

      • Scattered light noise 2024/10/07 klog

    • Summary page update

    • Pastavi update: block the comtamination of the artificial signal klog

20241009 (Wed.)

  • Agenda
    • Announcement
      • O4b schedule:
      • Scheduled conference

        • JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) web

        • KAGRA Face-to-face meeting: 2024/12/16(Mon)-18(Wed) @ICRR, U-Tokyo, Kasiwa campus

      • KAGRA site report 10/02

      • Next meeting: October 16
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)

      • lock loss study in the commissioning (YamaT, Yuzurihara) web

      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes
    • Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.

      • Recovery work after Kashiwa cluster maintenance, such as cache file and segment production. (Uchikata) klog

      • Recovery of bruco server from Kashiwa planned power outage(YamaT) klog

      • Recovery of Pastavi from power outage (Yuzurihara) klog

    • Commissioning support

      • Periodic glitches in the IRX QPD (Oshino) klog

      • Checked the laser power of the IRX (Oshino) klog

      • Added DHARD and CHARD control signals plot klog summary page

    • Glitch investigation (Kihyun)

      • Hveto analysis with triggers of SNR >= 8 is underway.

    • Scattered light noise characterization (Hsu Shih-Hong)
      • The origin of the 300 ~ 400 Hz oscillation is different from scattered light noise.

      • For the previous research on scattered light noise, see slide

    • Update of condor on kmst cluster (Chia-Hsuan)
      • He tried to use the condor_valut_storer. However, it required authentification by the administrator to activate the command.

20241002 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Scheduled conference

        • JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) web

      • KAGRA site report 09/09

      • Next meeting: October 9
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)

      • lock loss study in the commissioning (YamaT, Yuzurihara) web

      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes

    • Upgrade DetChar computers (YamaT)

      • Due to Kachiwa maitanance, nds2 is working partially.
    • lock loss study in the commissioning (YamaT, Yuzurihara)

    • Shutdown the Pastavi server for power outage

    • Characterization of relationship between Omicron triggers and inspiral range during O4a (Ishikawa) slide

    • Line investigation (Takahiro.S.Yamamoto) slide

    • Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
      • Recovery work after Kashiwa cluster maintenance, such as cache file and segment production. (Uchikata)
      • Update of the condor in Kashiwa cluster to version 23.0.14
        • This version looks fine for stochastic search (Chia-Hsuan)

20240911 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.

      • LIGO Detector Characterization in the first half of the fourth Observing run arxiv

      • Scheduled conference

        • JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.web

        • LVK meeting @Barcelona, Spain: Registration is now open. Sept 23 – 26. web

          • block schedule for the meeting is now ready

        • JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) web

      • KAGRA site report 09/02

      • Next meeting: October 2. We will skip the meeting on September 18 and 25.
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes
    • lock loss study in the commissioning (YamaT, Yuzurihara)
    • cache file at Kashiwa cluster (Uchikata)
    • Segment reproduction (Uchikata, Narikawa, YamaT, Yuzu)
      • There was a missing period at the Kamioka cluster. While generating the segment at the Kashiwa cluster, we noticed that it's important to use the consistent version of gwpy and python-ligo-xml to upload the segment for DQSEGDB. We found a suitable conda environment at the Kaashiwa cluster. The segment file generated in the Kashiwa cluster looks consistent with the one generated in the Kamioka cluster. The next step is to ask Robert to include the updated segments on DQSEGDB.
    • Line investigation (Takahiro.S.Yamamoto)
      • The script was developed to merge the spreading line noise into one line noise. Although the test script is working well, it requires more time to mature.

20240904 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
      • Scheduled conference

        • JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.web

        • LVK meeting @Barcelona, Spain: Registration is now open. Sept 23 – 26. web

          • block schedule for the meeting is now ready

        • JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) web

      • KAGRA site report 09/02

      • Next meeting: September 11. We will skip the meeting on September 18 and 25.
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes
    • KAGRA student workshop (Yuzurihara)

      • During the KAGRA student workshop (2024/08/27-29), we visualized the KAGRA data around the trigger time of high chi^2 statistics by using the time-frequency map klog JGWdoc

      • scattered light affects the high SNR? --> Chi^2 can mitigate the effect of the scattered light

      • What about the effect on parameter estimation? --> I'm not sure. The effect can be evaluated by analyzing the data injected with scatter light noise.

        • Providing segment information on the scattered light noise might be helpful. The difficulty is in identifying the time that occurs when the scattered light is present.
        • Chia-Jui-san mentioned the method using the Omicron triggers and Q-transform.

      • (Narikawa) The other trigger list of high SNR was used? --> Not yet, due to the time constraints

    • Update contents of summary page (Oshino)
    • Related to segment files (Uchikata, Narikawa)
      • There was a missing period at the Kamioka cluster. While generating the segment at the Kashiwa cluster, we noticed that it's important to use the consistent version of gwpy and python-ligo-xml to upload the segment for DQSEGDB. We found a suitable conda environment at the Kaashiwa cluster. The segment file generated in the Kashiwa cluster looks consistent with the one generated in the Kamioka cluster.
      • The automatic generation of the cache file sometimes fails at the Kashiwa cluster. We doubt the cause is the cluster setting. We are discussing how to avoid the failure of cache file generations.
    • pyCBC trigger list for O4a data (Narikawa and Uchikata)

      • slide

      • He injected the BNS signal into the data using Bilby and showed the reconstruction result.
      • The duration of the BNS template (fmin=30Hz) is 250s.
    • Line investigation (Takahiro S Yamamoto)
      • He implemented the code to generate the normalized spectrum. By eyeball check, the result looks consistent with the results by YamaT-san.
      • The next step is to fit the line peak using Gaussian or Lorenzian distribution and characterize the line width and stability of the frequency.
      • Clustering might be necessary to merge the broad line noise into one line.

      • Working repo(internal)

20240807 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
      • Request to reduce batch job during 8/27-30 for the Student Workshop (See [kagra 06769])
      • Scheduled conference

        • KAGRA f2f meeting: 2024/08/21(Wed)~23(Fri) @Tokyo City University web

          • Satellite meeting for noise reduction of KAGRA: 2024/08/24 9:00~12:00 web

        • JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.web

        • LVK meeting @Barcelona, Spain: Registration is now open. Sept 23 – 26. web

        • JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) web

      • KAGRA site report 07/29

      • Next meeting is September 4
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes
    • pyCBC trigger list for O4a data (Narikawa and Uchikata)

      • Although they updated the way of clustering, the basic feature didn't change. slide

    • The usage manual for veto definer was prepared by Uchikata-san usage manual for veto definer

    • Hveto analysis
      • The comparison between Omicron 2.4 and 3.2 was done

20240731 (Wed.)

20240724 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
      • Scheduled conference

        • KAGRA f2f meeting: 2024/08/21(Wed)~23(Fri) @Tokyo City University web

        • JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.web

        • LVK meeting @Barcelona, Spain: Registration is now open. Sept 23 – 26. web

        • JGRG33 @Kindai University: 2024/12/02(Mon)~2024/12/6(Fri) web

      • KAGRA site report 07/16

      • Next meeting is 08/07(Wed). Next week, we will have Wide presentation of PhD thesis by Kihyun.
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes

    • Add cooler ondotori page (Oshino) klog

    • KAGRA segment file production stopped on 28 June 2024

      • The cause was the stop of cache file at Kamioka computer due to the expire of gps time package.
      • To return to an automated setup, would it be possible to have the incomplete files created in one directory and only moved to their final location after the whole day's segments are finalized?

      • Reduce the cadence of segment production at Kamioka site

    • On this Friday, we shut down the Kamioka computers due to a planned power outage.
    • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • They are updating the way to cluster the triggers.
    • veto definer (Uchikata)
      • When we make veto definer, we need the segment updated in DQSEGDB. But, currently, the necessary segment was not uploaded on DQSEDB. We will ask Robert to include them soon.
      • Uchikata-san will summarize the procedure at the DAC wiki.
    • Line identification (Takahiro S. Yamamoto)

      • slide

      • By using Fscan, the line noise in O1 data was investigated. Fscan

      • The goal is to obtain the line frequency and the typical width.
      • Investigating the stability of line noise is important. It will be the first task.
    • Stochastic search (Chia-Hsuan)
      • The line list computed from the data with a shorter duration might be important. Currently, we use the line list of 0.001 mHz resolution. The unification between the stochastic analysis and the detchar analysis is necessary.
    • Parameter estimation analysis with KAGRA O4a data (Kobayashi)

20240717 (Wed.)

  • canceled

20240710 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
      • Future meeting

        • JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.web

        • KAGRA f2f meeting: 2024/08/21(Wed)~23(Fri) @Tokyo City University web

        • LVK meeting @Barcelona, Spain: Registration is now open. Sept 23 – 26. https://lvkmeeting2024.ifae.es/

      • KAGRA site report 07/02

        • Recovery from the Noto Earthquake Disaster
      • Next meeting is 07/24(Wed).
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes

    • Comparison of Hveto results according to Omicron HPF(Kihyun Jung) klog#30318

    • (Yamat) The Summary page needs to be updated. It is now a bottleneck for updating the detchar tools in IGWN conda environment.
    • CBC trigger list for O4a (Uchikata, Narikawa)

      • slide

      • Check the details for large chi^2 /SNR triggers.
      • Generate the lists automatically and upload it to the daily summary page.
      • Extend the analysis to the CBC search.
      • We may need to gate the IPC error segments for the search.
    • O4a event rate by pyCBC search (Narikawa, Uchikata)
      • If configuration is same as Omicron, we can compare the results.

      • How does pycbc treat the time-clustering? --> clustered triggers within 10 seconds.

      • How the clustering length is decided? In Omicron case, the 0.1 clustering length is decided empirically.
    • Hveto analysis (Kiyun)
      • Kiyun agreed with the wide presentation for KAGRA collaborators, which will be an alternative presentation in the f2f meeting.
    • Deep clean(Shu-Wei Yeh)

      • slide

      • They checked the response on the strain at the hardware injection. For these data, they didn't apply the deep clean.
    • Stochastic search (Chia-Hsuan)
      • Yuzurihara shared the procedure to submit the application of the account on the kmst cluster.
      • Detchar member (Uchikata+) will prepare the veto definer for IPC glitches instead of segment file.

20240703 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Power outage of ICRR Kashiwa campus on 2024/09/28(Sat) 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
      • Future meeting

        • JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.web

        • KAGRA f2f meeting: 2024/08/21(Wed)~23(Fri) @Tokyo City University web

        • LVK meeting @Barcelona, Spain: Registration is now open. Sept 23 – 26. https://lvkmeeting2024.ifae.es/

      • Announcements from Operations (Sawada)

      • KAGRA site report 06/18

    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • provide the CAT1 veto-definer file for IPC glitch (Uchikata)
  • Minutes

    • Bruco configuration for MICH (yamaT) klog#30133

      • Bruco server was replaced to new system

    • Inconsistence of number of triggers between Omicron versions klog#30101

      • On LIGO summary page, the old Omicron(>v4.0) seems to run for Hveto analysis.

      • For Hveto at different computers (Kamioka, Kashiwa, KISTI), we should use the Omicron with the consistent versions.
    • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • They generated the triggers for O4a data. There were no daily fluctuations in the triggers.
      • The comparison between the O4a triggers and triggers computed by the simulated Gaussian noise is underway. The Gaussian data doesn't include the line noise.

    • Report of updating the DeepClean results using training and cleaning times that avoid IPC glitches (Shu-Wei Yeh) slide

      • Subtraction of the 60 Hz line noise and noise monitored by the microphone is underway.
      • They showed some improvement by excluding the data of IPC glitches.
      • (yamaT) How did you confirm the current-voltage monitor can track the line drift? The coherence might not be the evidence for a narrow frequency bin.
      • (yamaT) Acoustic injection test many times, they investigated the coupling functions between sound and DARM.

20240626 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Power outage of ICRR Kashiwa campus on 2024/09/28 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
      • Conference

        • JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.web

        • KAGRA f2f meeting: 2024/08/21(Wed)~23(Fri) @Tokyo City University
      • Announcements from Operations (Sawada)

      • KAGRA site report 06/18

    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
  • Minutes

    • Usage manual was updated for the latest Omicron (v4.1)

      • We compared the number of triggers between different Omicron versions (v4.1 and v3.1) in root/hds5/xml formats.
      • Based on the reply from the developer, the Omicron (v3.1) had the bug. The developer recommends using the latest Omicron for the analysis.

      • Yuzurihara updated usage manual for v4.1 using the hdf5 format.

    • Update for gates found in stochastic search (Chia-Hsuan)
      • The gating with 3.5 s tme window was applied in pygwb when the large transient (IPC glitch) occurred. To mitigate the length losing by gating, it's better to usr the veto-definer.
      • Uchikata-san have an experience on the veto-definer. She will try to prepare it.
      • Currently they analyzed O4a data (L1, H1, K1) on CIT. But, the L1 and H1 data are stored in system-B(kmst2).
    • Trigger generation for O4a data by pycbc (Narikawa)
      • They showed the result of comparing the O4a triggers with the triggers computed by Gaussian noise (~5days). The discussion is underway.
    • Hveto analysis (Syifa)
    • Glitch investigation (Chia-Jui)
      • They explained how to apply the whitening: (1) estimate the ASD from the data of (tc-58)~(tc-2), (2) apply the whitening by using the estimated ASD

      • Based on their request, we shared the list of aux. channel which was used in O4a Hveto analysis in Summary page. git

20240619 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Power outage of ICRR Kashiwa campus on 2024/09/28 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
      • Conference

        • JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.web

        • KAGRA f2f meeting: 2024/08/21(Wed)~23(Fri) @Tokyo City University
      • Announcements from Operations (Sawada)

      • KAGRA site report 06/07

        • new commissioning leader: Takafumi Ushiba
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
  • Minutes
    • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)

      • O4a summary page

      • This task is finished. The summary page is available here.

      • The data set for the inspiral range is also available on system-B.
    • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • They are working on comparing the effect by changing the segment durations of 256s and 128s.
      • In the future, we will connect the trigger results with the summary page.
      • Currently they produced the triggers by using the template of 1.4-1.4Msun.
    • Glitch classification
      • They showed the summaries of the glitch classification.
      • The glitches located in the upper right on Q-transform might be related to the lockloss.

20240612 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Power outage of ICRR Kashiwa campus on 2024/09/28 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
      • Conference

        • JPS: 2024/09/16(Mon)~09/19 @Hokkaidou univ.web

        • KAGRA f2f meeting: 2024/08/21(Wed)~23(Fri) @Tokyo City University
      • Announcements from Operations (Sawada)

      • KAGRA site report 06/07

    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
  • Minutes
    • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      • Computed the inspiral range from the strain channel with gwpy. Basically they used only the data in the science mode.
      • The histogram of the inspiral range changed. We can see the peak on the histogram.
    • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • They computed the triggers by using pycbc package from the strain data and packed in the xml.
      • The analyzed data include the IPC glitches. But, the chi-square could mitigated the glitch effect.

      • (Yuzu) Did you find the interesting or new triggers? --> no. Data seems stable.

      • (YamaT) Can you compare the trigger histogram with the one from Gaussian noise data? --> not yet. It's possible by replacing the input data with the generated Gaussian noise.

    • Glitch classification (Hsu Shih-Hong)
      • They took the average of the Q-spectrograms for each class. The obvious common features were not observed.
      • They tried to extract the common features on the Q-spectrograms.
      • It's important to take into account of the whitening effect. The whitening in gwpy could make the sharp glitch wider.

20240605 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Next 10yr Task Force Meeting: 2024/06/07 17:00JST, see [kagra 06570]
      • Power outage of ICRR Kashiwa campus on 2024/09/28 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.

      • JPS registration: 2024/5/21~6/5 web

        • Does anyone have a presentation related to DetChar activity?

      • Announcements from Operations (Sawada)

      • KAGRA site report 05/22

    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
    • isotropic stochastic search result (Chia-Hsuan)
  • Minutes

    • In next JPS meeting(Sep.), YamaT plan to talk the detchat topics related to the web service (https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/).

    • Issue of monopolizing the CPU resources of system-B cluster. (this might be the third time in my memory)
      • Yuzurihara contacted the administrators to set some threshold or update the cluster settings so that the job submission system will manage the jobs submitted by many users effectively. Still no response from the administrators.

    • isotropic stochastic search result (Chia-Hsuan) slide

      • They analyzed the O4a KAGRA data with other detectors by using the pygwb pipiline, at CIT cluster.
      • They found the strange peak on the gating length. They shared the list of the gated time. The comparison between the list and the time of IPC glitches will be done soon.

      • They reported the coherence between KAGRA and LIGO (Livingston and Hanford). About the coherence of 960 and 961 Hz, yamaT pointed out that it came from the timing system. We use the same timing system between KAGRA and LIGO. See also alog.

        • AI for detchar: Collect the information of the remaining frequencies with coherence

      • (YamaT) How did you integrate the data for narrow-line analysis? --> all of the science mode

      • How was the gate process applied?

      • What is the good frequency band for the analysis? --> (YamaT) Comments from the calibration side: use 30~1000Hz.

    • Glitch classification (Chia-Jui) slide

      • They reported the glitches detected in O4a data can be classified into several classes by using unsupervised classification.

      • Q-transform plots are available git.

      • Yama-T commented on slack that the glitch effect might be widen by the whitening process.
    • O4a summary page (Uchikata)
      • We have decided to compute the inspiral range without the gwsumm. The computation is on-going.

20240529 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Next 10yr Task Force Meeting: 2024/06/07 17:00JST, see [kagra 06570]
      • Power outage of ICRR Kashiwa campus on 2024/09/28 9:00~18:00 JST. The system-B cluster and Pastevi server will be down.
      • Renewal of the account on KAGRA Main Data System: deadline 2024/05/31

      • JPS registration: 2024/5/21~6/5 web

        • Does anyone have a presentation related to DetChar activity?

      • KAGRA site report 05/22

    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
  • Minutes
    • Glitch analysis (Ishikawa)
      • The Omicron analysis for non-stationary noise around 360 Hz is on-going.
      • There might the 5-minutes fluctuation on the inspiral range. The analysis for other data will be done next.
    • Glitch analysis (Chia-Jui)
      • The Omicron analysis for the science mode excluding the IPC glitch is on-going.

      • (Guo Chin Liu) Do you have a flag to indicate the glitch time? --> Omicron provide the time of the glitch.

      • (Guo Chin Liu) What is the ratio in the science mode?

      • He found several characteristic types of glitches in KAGRA O4a data. For details, see slide.

      • klog

    • Hveto analysis (Syifa)
      • Hveto analysis with high pass filter is on-going.
    • Dedicated O4a summary page (Uchikata)
    • (Sawada) Matlab on the LDAS cluster will stop on the next maintenance day. If you want to use the Matlab on LDAS cluster, please contact with Sawada-san.

20240515 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • KAGRA detchar liaison to CBC group
        • Nami Uchikata as the new liaison between the CBC group and the KAGRA Detchar group.
      • KAGRA site report
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
  • Minutes
    • Update contents of summary page (Oshino)
    • Hveto (Shifa)
      • By changing cutoff frequency of 8 or 12Hz, they checked the Hveto results and found the artificial glitches around 10Hz.
      • When they apply the HPF with 6 Hz or 4 Hz, the artificial glitches around 10Hz disappeared.
      • (YamaT) Do you know the design of HPF (butterworth?)?
      • (Uchikata) Minimum frequency of Hveto should be larger than the cutoff frequency of high pass filter in Omicron.
        • (YamaT) It might make the ripple.
      • (Yuzu) You can analysis the Omicron triggers with the higher cut-off frequency.
    • Glitch analysis (Ishikawa)

      • klog#29454 slide

      • (Chia-Jui) How do you set-up the Omicron configuration files? --> Same as commonly used one.

      • (Chia-Jui) What was the typical SNR of 300-500Hz? --> SNR 6~10? He didn't have a clear answer. He will check it.

    • Glitch analysis (Chir-Jui)
      • Omicron analysis without high pass filter was done.
      • In page 7, there were gaps due to the exceed of threshold of glitch rate. At that time, Omicron failed due to the error.
      • We confirmed the goal of the Detchar activity is to contribute the sensitivity or noise hunting of KAGRA.

20240508 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Introduction of new comer
      • KAGRA site report
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
  • Minutes

    • Omicron triggers at System B (Uchikata) klog

    • Update contents of summary page (Oshino)

    • line identification by fscan for kagra (Takahiro.S.Yamamoto) slide+supplement

      • What is the frequency resolution?

      • Segment duration of 1800 s is a typycal value in continuous wave search? --> yes

      • Is is posible to real-time monitoring of 60 Hz?
      • What is the advantage to used fscan?

      • The result for O4a data is available on the web. Due to computational costs, we didn't use aux. channels.

    • Hveto analysis (Kyujin, Kihyun, Syifa)
      • By adding the high pass filter, the artificial glitches appeared, although there is no such glitches in Uchikata-san's results.

    • Omicron on K1 O4a Data (Chia-Jui) slide

      • They proposed the way to identify the IPC glitches. --> The way to identify the IPC glitches was already established.

      • They found three classes of glitches in KAGRA data.
    • Dedicated summaru page for O4a KAGRA (Uchikata)
      • When we compute the inspiral range by reading the data from NDS server,

20240424 (Wed.)

  • Agenda
    • Announcement
      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Introduction of new comer
      • KAGRA site report
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      • cache file for O3GK and O4a
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
  • Minutes
    • Meeting on Next week will be canceled. Next meeting is 8 May.
    • Report of KIW and open data workshop#7 (Yuzurihara)
    • Computer cluster at Kamioka (Oshino)
      • We purchased the rack. In future, we move the computer in the rack.
    • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      • Confirmation of the result is on-going.

      • The scale of histogram was changed. The apperance looks consistent with the dedicated summary page and the YamaT-san's result.

      • TODO: Inspiral range should be computed from the strain channel, not using the RANGE channel. That Range channel is used for the prompt report.
    • Hveto (Kyujin, Kihyun, Syifa)
      • The analysis result was explained in the meeting.
      • The high pass filter with 10 Hz or 15 Hz was applied for the Omicron analysis. The frequency range for Omicron should be tuned at the same time to mitigate the artificial noise in the Omicron triggers.
      • whale-like shape disappered in the histogram of Omicron triggers when we remove the segment of IPC glitch from the analysis.
      • Is there any suggestion to the interferometer experts? For example, which channels seems problematic.
    • Glitch investigation (Ishikawa)

      • Studying the Omicron pipeline and applying to the KAGRA's O4a data Progress report

    • Line investigation (Samurai)
      • Reading Fscan paper for past observation run (S6, O1, O2). The report will be done in the future meeting.

20240410 (Wed.)

  • Agenda
    • Announcement

      • KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 web

      • Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 web, Info. from GWOSC

      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:
      • Introduction of new comer
      • KAGRA site report
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
  • Minutes
    • pyCBC trigger list for O4a data (Narikawa and Uchikata)

      • Use segment information of SCIENCE MODE + IPC glitch ==> ongoing

        • ongoing

      • Change data length 4096s -> 64s. Apply the high pass filter before splitting the data. ==> done

      • Estimate common PSD and use it for the analysis ==> done

      • Is it possible to output the trigger list in xml format?

20240403 (Wed.)

  • Agenda
    • Announcement

      • KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 web

      • Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 web, Info. from GWOSC

      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:

      • Update of DQSEGDB server help ticket

      • KAGRA site report
    • Budget request
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
  • Minutes

    • Upgrade DetChar computers (YamaT)

      • waiting the update of workstation machines. I will take a few monthes.
    • DQR update (Yuzurihara)
      • no update.
    • Update contents of summary page (Oshino)
      • no update
    • Hveto (Kyujin)
      • Trouble on KISTI cluster.
    • pyCBC trigger list for O4a data (Narikawa and Uchikata)
      • Use segment information of SCIENCE MODE + IPC glitch

      • Change data length 4096s -> 64s. Apply the high pass filter before splitting the data.

      • Estimate common PSD and use it for the analysis
      • Is it possible to output the trigger list in xml format?

20240326 (Wed.)

  • Agenda
    • Announcement

      • KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 web

      • Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 web, Info. from GWOSC

      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:

        • ER16: It will nominally start at 1500 UTC (2400 JST) on 20 Mar 2024, and last for 2 weeks.

        • O4b: We plan to commence O4b at 1500 UTC (2400 JST) on 3 April 2024.

        • Ref.internal discussion, public announcements

      • KAGRA site report
    • Budget request
    • Progress reports

      • Upgrade DetChar computers (YamaT)

      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Related to segment files (Uchikata, Narikawa)
      • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
  • Minutes
    • Budget request
      • New computers for replacing too old servers (k1det0, 1): 500k-yen x2
      • HDD for new systems: 10k-yen x10-20
    • Progress reports

      • Upgrade DetChar computers (YamaT)

        • Testing DetChar softwares can be started after the update of CDS workstations is completed.

        • Test of CDS workstation needs more time (hopefully by end of April)
      • DQR update (Yuzurihara)
        • No update
      • Update contents of summary page (Oshino)
        • No update
      • Related to segment files (Uchikata, Narikawa)
        • No update
      • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa)
      • pyCBC trigger list for O4a data (Narikawa and Uchikata)
        • No update

20240306 (Wed.)

  • Agenda
    • Announcement

      • KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 web

      • Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 web, Info. from GWOSC

      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:

      • LVK meeting on March 11-14 at Louisiana State University web

        • There is no fee for online participants

      • Update of member list for DetChar mailing list

      • KAGRA site report
    • Task list for the authorship 2024
    • Progress reports
      • O4a summary page(Uchikata)
        • After several attempts, the job was finished without errors. Another small problems,

20240228 (Wed.)

  • Agenda
    • Announcement

      • KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 web

      • Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 web, Info. from GWOSC

      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:

      • LVK meeting on March 11-14 at Louisiana State University web

        • Early Registration is open until February 1
        • There is no fee for online participants

      • Update of member list for DetChar mailing list

      • KAGRA site report
    • Task list for the authorship 2024
    • Progress reports
  • Minutes
    • Task list for the authorship 2024 (not fixed yet) 
      1. Commissioning support : serving data monitoring tools for site commissioners.
  This task focuses on the support of the IFO lock trial and/or noise hunting based on the request from the interferometer commissioners.
  Support of analyses to measured data (e.g. noise projection to the DARM with measured noise and TFs) is also contained in this task.
  Specialized tasks for each subgroup should be applied for in the respective group task.

2. Production and validation of Online Data Quality State Vector (for O4b/O5 preparation.
  This task focusing on providing the online DetChar products such as the online DQSV and managing various reliable online flags.
  Developing real-time and guardian codes for providing such flags should be contained in this task.

3. Production and validation of Segment information for O4b/O5 preparation.
  This task focusing on providing low-latency/offline segments.
  Providing segment itself, evaluation of efficient channels to make segments, evaluating benefit of segments on GW searches
  and cooperation with CIT staffs to update segment contents on DQSEGDB are contained in this task.

4. Construction of DQR (Data Quality Report) and igwn-alert framework for O4b/O5 RRT activities.
  This task focusing on providing contents from KAGRA to DQR web pages which is merged with LIGO, Virgo and KAGRA.

5. Support of Data Analysis group to set Data Category criteria for O4b/O5 joint observing run.
  This task focusing on the support of the GW-search activities based on the each WG of DAC.
  Providing data category for the pipelines of each GW sources, providing veto segments 
  and other noise information such as identified spectral lines are also contained in this task.

6. Managing DET computers and their environments.
  This task contains the computer environment construction for providing the DetChar products in the cadence of online/low-latency/offline.
  Managing dedicated servers for sharing DetChar products among LVK is also contained in this task.

=====
- Noise hunting in KAGRA commissioning.
    Obsolescent 
    Noise *hunting* without IFO (hardware) experts is unrealistic.
    In this meaning, the most of noise *hunting* can be covered in "Commissioning support”.
    If the tasks are related to the noise *finding* for the purpose of providing veto segment,
    they can be covered in “Support of Data Analysis”.
      • hveto analysis is contained in 1. in the case that there is some communication with onsite commissioners via klog etc.
        • It's also potentially contained in 5. in the case of providing veto-ed segments, correlated channels etc.

      • Providing Run SummaryPage is contained in 5.

        • Exact sentence as "Making Run Summary" should be added the description in 5.
    • Progress reports
      • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
        • start consideration about the system upgrade to new Debian system.
        • DET tools depend on the CDS tools and CDS tools are well managed on apt-repository.
        • Only a part of CDS tools can be available on Anaconda now.
      • DQR update (Yuzurihara)
      • Update contents of summary page (Oshino)
      • Combine DET computer resources into one DET cluster at Kamioka site
      • Related to segment files (Uchikata, Narikawa)

      • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa) O4a (LV)

      • pyCBC trigger list for O4a data (Narikawa and Uchikata) O4a (H1)

        • 4000s data analysis is ongoing.
          • Processed time is a few hours
        • Used template is changed from BBH to BNS.
          • Trigger behavior is changed by used templates.
        • Generated triggers are in the text format.

          • If LIGO's XML (LW XML?) is available, it may be very easy to make various plots on SummaryPages.

20240221 (Wed.)

  • Agenda
    • Announcement

      • KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 web

      • Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 web

      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:

      • LVK meeting on March 11-14 at Louisiana State University web

        • Early Registration is open until February 1
        • There is no fee for online participants

      • Update of member list for DetChar mailing list

      • KAGRA site report (Yuzurihara)
    • Commissioning support + tasks related to O4a
      • O4a for KAGRA : 2023/05/25 0:00 JST (=2023/05/24 15:00UTC) ~ 2023/06/21 8:00 JST
      • Event validation (YamaT)
      • Online data quality state vector (YamaT)
      • Tool to evaluate Gaussianity (Yamamura)
      • Scattered light noise (Yamamura)
      • Pastavi update (Yuzurihara)
      • Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
      • Classification of glitch noise (Shikano, Oshino)
      • IPC glitch
      • line noise study (Samurai)
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    • DQR update (Yuzurihara)
    • Update contents of summary page (Oshino)
    • Combine DET computer resources into one DET cluster at Kamioka site
    • Related to segment files (Uchikata, Narikawa)

    • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa) O4a (LV)

    • pyCBC trigger list for O4a data (Narikawa)
  • Minutes

20240214 (Wed.)

  • Agenda
    • Announcement

      • KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 web

      • Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 web

      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:

      • White paper and task list for 2024 git repo

      • LVK meeting on March 11-14 at Louisiana State University web

        • Early Registration is open until February 1
        • There is no fee for online participants

      • Update of member list for DetChar mailing list

      • KAGRA site report (Yuzurihara)
    • Commissioning support + tasks related to O4a
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    • DQR update (Yuzurihara)
    • Update contents of summary page (Oshino)
    • Combine DET computer resources into one DET cluster at Kamioka site
    • Related to segment files (Uchikata, Narikawa)

    • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa) O4a (LV)

    • pyCBC trigger list for O4a data (Narikawa)
  • Minutes
    • Online data quality state vector (YamaT)
    • Scattered light noise (Yamamura)

      • Investigation of scattered light noise in O4a

      • (oshino) why the double bounce occurred?
      • (yamaT) it's better to check both the feedback and error signal (OUT_DQ and IN1_DQ).
      • (oshino) PD signal might be helpful in the investigation. In POP_FORWARD, the scattered light was seen in the past.
    • Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)

      • KAGRA O4a hveto results (0524 ~ 0606) KAGRA O4a hveto results (0607 ~ 0619)

      • hveto shows the many triggers on the time the scattered light noise appeared
      • (yamaT) IPC glitch was taken care in this analysis? It's better to use SCIENCE segment + IPC glitch segment.
      • It is interesting to compare the glitch rate and the analysis result with and without IPC glitch segments.
      • Yuzurihara shared that segment with Kihyun.

    • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa) O4a (LV)

    • pyCBC trigger list for O4a data (Narikawa)
      • (yamaT) can we include the trigger information by pycbc, in the summary page?

20240207 (Wed.)

  • Agenda
    • Announcement

      • KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 web

      • Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 web

      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:

      • White paper and task list for 2024 git repo

      • LVK meeting on March 11-14 at Louisiana State University web

        • Early Registration is open until February 1
        • There is no fee for online participants

      • Update of member list for DetChar mailing list

      • KAGRA site report (Yuzurihara)
    • Commissioning support + tasks related to O4a
      • O4a for KAGRA : 2023/05/25 0:00 JST (=2023/05/24 15:00UTC) ~ 2023/06/21 8:00 JST
      • Event validation (YamaT)
      • Online data quality state vector (YamaT)
      • Tool to evaluate Gaussianity (Yamamura)
      • Scattered light noise (Yamamura)
      • Pastavi update (Yuzurihara)
      • Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
      • Classification of glitch noise (Shikano, Oshino)
      • IPC glitch
      • line noise study (Samurai)
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    • DQR update (Yuzurihara)
    • Update contents of summary page (Oshino)
    • Combine DET computer resources into one DET cluster at Kamioka site
    • Related to segment files (Uchikata, Narikawa)

    • Provide the dedicated summary page for O4a of KAGRA (Uchikata) O4a (LV)

  • Minutes
    • Online data quality state vector (YamaT)

      • model update of k1detdq0 This is bug fix of production of online data quality state vector related to DAC saturation.

      • The hardware test will be done this week an next week.
    • Tool to evaluate Gaussianity (Yamamura)
    • Classification of glitch noise (Shikano, Oshino)
      • They restarted this project. The report will be done soon.

    • Provide the dedicated summary page for O4a of KAGRA (Uchikata) O4a (LV)

      • They tested the conda environment and configuration files for the production of the summary page. Except for the specific short time, they can generated the O4a summary page including duty cycle and inspiral range.
    • Generation of trigger list by pycbc (Narikawa)
      • Code test is ongoing by using the short 4096s data of O4a. The timeseries of chi square looks strange. They plan to apply the high pass filter, instead of window function.
      • (yamat) How do you decide clustering length?
      • (Narikawa) By software injection, we can evaluate how the SNR spreads and determine the clustering length.

20240131 (Wed.)

  • Agenda
    • Announcement

      • KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17 web

      • Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 web

      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:

      • White paper and task list for 2024 git repo

      • LVK meeting on March 11-14 at Louisiana State University web

        • Early Registration is open until February 1
        • There is no fee for online participants

      • Update of member list for DetChar mailing list

      • LVK MoA survey summary LIGO DCC

      • KAGRA site report (Yuzurihara)
    • Commissioning support + tasks related to O4a
      • O4a for KAGRA : 2023/05/25 0:00 JST (=2023/05/24 15:00UTC) ~ 2023/06/21 8:00 JST
      • Event validation (YamaT)
      • Tool to evaluate Gaussianity (Yamamura)
      • Scattered light noise (Yamamura)
      • Pastavi update (Yuzurihara)
      • Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
      • Classification of glitch noise (Shikano, Oshino)
      • IPC glitch
      • line noise study (Samurai)
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    • DQR update (Yuzurihara)
    • Update contents of summary page (Oshino)
    • Combine DET computer resources into one DET cluster at Kamioka site
    • Related to segment files (Uchikata, Narikawa)

    • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa) O4a (LV)

  • Minutes
    • Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
    • line noise study (Samurai)

      • slide

      • Is it possible to set the initial parameter in advance, such as prominence and height?
      • In future, it is better to extend the fft length to be longer for fine frequency resolution.
    • Update contents of summary page (Oshino)
    • Related to segment files (Uchikata, Narikawa)

    • provide the dedicated summary page for O4a of KAGRA (Uchikata and Narikawa) O4a (LV)

      • The attempt to generate summary page is on system-B. For reading data, NDS2 server is helpful.

20240124 (Wed.)

  • Agenda
    • Announcement
      • KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17

      • Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 web

      • LIGO-Virgo-KAGRA detchar joint meeting
        • tileslot: onthly, 23:00 JST (14:00 UTC) or 6:00 JST (21 UTC)

        • Last meeting on Nov. 15 23:00 JST (14:00 UTC) wiki

      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:

        • O4a: It will end at 1600 UTC on 16 Jan 2024. LLO will end O4a observing early, at 1400 UTC.

        • ER16: It will nominally start on 13 Mar 2024, and last for 2 weeks. (Note that ER16 will begin in the middle of the next LVK meeting at LSU, 11-14 March.)

        • O4b: We plan to commence O4b at 1600 UTC (2500 JST) on 27 Mar 2024.

        • Ref.internal short announcements (reminders), public announcements

      • Information of O4a wiki page

      • White paper and task list for 2024 git repo

      • LVK meeting on March 11-14 at Louisiana State University

      • Update of member list for DetChar mailing list

      • KAGRA site report (Yuzurihara)
    • Commissioning support + tasks related to O4a
      • O4a for KAGRA : 2023/05/25 0:00 JST (=2023/05/24 15:00UTC) ~ 2023/06/21 8:00 JST
      • Event validation (YamaT)
      • Tool to evaluate Gaussianity (Yamamura)
      • Scattered light noise (Yamamura)
      • Pastavi update (Yuzurihara)
      • Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
      • Classification of glitch noise (Shikano, Oshino)
      • IPC glitch
      • line noise study (Samurai)

        • Peak identifications web

    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    • DQR update (Yuzurihara)
    • Update contents of summary page (Oshino)
      • run Omicron at Kamioka site and refresh the Omicron plots on summary page during O4a period
    • Combine DET computer resources into one DET cluster at Kamioka site
    • Script to generate segment files (Uchikata, Narikawa)
    • Related to segment files (Uchikata, Narikawa)

    • provide the dedicated summary page for O4a of KAGRA? O3a (LV)

  • Minutes

20240117 (Wed.)

  • Agenda
    • Announcement
      • KAGRA international workshop (KIW11)@Taiwan: 2023/04/16-17

      • Gravitaional wave open data workshop (GWODW7)@Taiwan: 2023/04/18-20 web

      • LIGO-Virgo-KAGRA detchar joint meeting
        • tileslot: onthly, 23:00 JST (14:00 UTC) or 6:00 JST (21 UTC)

        • Last meeting on Nov. 15 23:00 JST (14:00 UTC) wiki

      • O4a/preO4b(not call it as postO4a)/ER16/O4b schedule:

        • O4a: It will end at 1600 UTC on 16 Jan 2024. LLO will end O4a observing early, at 1400 UTC.

        • ER16: It will nominally start on 13 Mar 2024, and last for 2 weeks. (Note that ER16 will begin in the middle of the next LVK meeting at LSU, 11-14 March.)

        • O4b: We plan to commence O4b at 1600 UTC (2500 JST) on 27 Mar 2024.

        • Ref.internal short announcements (reminders), public announcements

      • Information of O4a wiki page

      • White paper and task list for 2024 git repo

      • LVK meeting on March 11-14 at Louisiana State University
      • KAGRA site report (Yuzurihara)
    • Commissioning support + tasks related to O4a
      • O4a for KAGRA : 2023/05/25 0:00 JST (=2023/05/24 15:00UTC) ~ 2023/06/21 8:00 JST
      • Event validation (YamaT)
      • Tool to evaluate Gaussianity (Yamamura)
      • Scattered light noise (Yamamura)
      • Pastavi update (Yuzurihara)
      • Noise hunting by machine learning and Hveto (Kyujin, Kihyun, Syifa)
      • Classification of glitch noise (Shikano, Oshino)
      • IPC glitch
      • line noise study (Samurai)

        • Peak identifications web

    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    • DQR update (Yuzurihara)
    • Update contents of summary page (Oshino)
      • run Omicron at Kamioka site and refresh the Omicron plots on summary page during O4a period
    • Combine DET computer resources into one DET cluster at Kamioka site
    • Script to generate segment files (Uchikata, Narikawa)
    • Related to segment files (Uchikata, Narikawa)

    • provide the dedicated summary page for O4a of KAGRA? O3a (LV)

  • Minutes

Past meeting

KAGRA/Subgroups/DET/Meeting (last edited 2024-12-25 11:08:07 by HirotakaYuzurihara)