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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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=== 20220502 (Mon.) === === 20240207 (Wed.) ===
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    *
   * 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
   * 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.
      * 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)
    * 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)
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   * Update contents of summary page? (Oshino)    * Update contents of summary page (Oshino)
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   * Report of new tool development? (Darkhan)
   * Data Quality flag for O4a
    * We are asking the concrete requirement for DAC members (CBC, burst, Stochastic)
   * Analysis of TCam photos of ITMY and ETMY with the metal scale by Tcam
    * klog https://klog.icrr.u-tokyo.ac.jp/osl/?r=20574
 * Minutes
   * DQR update (Yuzurihara)
    * No update.

-----
=== 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
   * 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)]]
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  * 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
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=== 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.
=== 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)
   * 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) [[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.
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=== 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)
=== 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]]
   * 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? [[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]]
Line 327: Line 137:
=== 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.
=== 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]]
   * 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? [[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.
   * DQR update (Yuzurihara)
    * 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 382: Line 189:
  * [[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


Agenda & Minutes


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)
      • 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


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 2024-12-20 15:43:41 by HirotakaYuzurihara)