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| == Agenda & Minutes == ----- === 20241113 (Wed.) === |
=== 20250423 (Wed.) === * Agenda * Announcement * O4 schedule: * '''O4c''': We are currently in O4c, and will end on 7 October 2025. * [[https://observing.docs.ligo.org/plan/|Run plan(03/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda250403|operation (04/03)]] [[https://wiki.ligo.org/DetChar/Telecon20250407|LIGO detchar (4/7)]] * Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC; there may be an engineering period of around a week at the beginning of the run * O4 will end on 7 October 2025 at 15:00 UTC * Scheduled conference * From Quarks to Neutron Stars: Insights from kHz gravitational waves: 2025/04/23-24 @Hongo Campus, The University of Tokyo [[https://indico2.riken.jp/event/5141/timetable/#all.detailed|web]] * Open Data Workshop 2025/05/12-14 * GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront * KIW12: 2025/05/26~27 @Shanghai Astronomical Observatory, Chinese Academy of Sciences [[https://kiw12.casconf.cn/page/1878817789607809024|web]] * deadline for registration: 2025/04/30 * JGWC(Japan Gravitational Wave Community) workshop: 2025/05/09(Fri)~10(Sat)@ JAXA Sagamihara [[https://jgwc.s.nao.ac.jp/2025年研究会/|web]] * Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK [[https://iop.eventsair.com/gr24-amaldi16/|web]] * ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) [[https://indico.cern.ch/e/icrc2025|web]] * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0166/L2516640/002/KAGRAReport_20250418.pdf|04/18]] [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/ChiefMeeting/2025-04-01|SEO report(4/1)]] * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33501|Re-tuning of INP2 pitch and PRC2 pitch]] * Maintenance of Kashiw cluster (system-B) was done on April 18. * The purpose is for several software updates and for the update of condor setting to reserve CPUs for high-priority jobs. * Retirement of X.509 authentification [[https://computing.docs.ligo.org/guide/auth/x509/|web]]. Instead, please use SciTokens. [[https://computing.docs.ligo.org/guide/auth/scitokens/#install|web]] * Next meeting: 2025/04/30 * 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) * pyCBC trigger list for O4a data (Narikawa and Uchikata) * provide the CAT1 veto-definer file for IPC glitch (Uchikata) * Minutes * Commissioning * Investiagation of large glitch around 23:39:55 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33446|klog]] * lockloss investigation: 2025/04/14~04/21 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33509|klog]] * veto definer file * The CAL group decided to generate the strain data of O4a KAGRA data by applying the high-pass filter (FIR) and correcting the time-delay shift. Now it's underway. * Originally, we planned to exclude the 1 second, including the IPC glitch, from the analysis. The additional FIR filter widens the time affected by the IPC glitch. We changed the plan to exclude 7 seconds (3+1+3 seconds) from the analysis. * After excluding the segment including the IPC glitch, we also exclude the science mode of less than 64 seconds. * The preparation of the veto definer file is underway. The procedure and other helpful links are summarized in [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/Observations/O4a/Detchar/Veto%20Definer%20File|wiki]] by Uchikata-san. ----- === 20250416 (Wed.) === * Agenda * Announcement * O4 schedule: * '''O4c''': We are currently in O4c, and will end on 7 October 2025. * [[https://observing.docs.ligo.org/plan/|Run plan(03/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda250403|operation (04/03)]] [[https://wiki.ligo.org/DetChar/Telecon20250407|LIGO detchar (4/7)]] * Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC; there may be an engineering period of around a week at the beginning of the run * O4 will end on 7 October 2025 at 15:00 UTC * Scheduled conference * From Quarks to Neutron Stars: Insights from kHz gravitational waves: 2025/04/23-24 @Hongo Campus, The University of Tokyo [[https://indico2.riken.jp/event/5141/timetable/#all.detailed|web]] * Open Data Workshop 2025/05/12-14 * GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront * KIW12: 2025/05/26~27 @Shanghai Astronomical Observatory, Chinese Academy of Sciences [[https://kiw12.casconf.cn/page/1878817789607809024|web]] * deadline for registration: 2025/04/30 * JGWC(Japan Gravitational Wave Community) workshop: 2025/05/09(Fri)~10(Sat)@ JAXA Sagamihara [[https://jgwc.s.nao.ac.jp/2025年研究会/|web]] * Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK [[https://iop.eventsair.com/gr24-amaldi16/|web]] * ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) [[https://indico.cern.ch/e/icrc2025|web]] * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0166/L2516620/002/KAGRAReport_20250403.pdf|04/03]] [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/ChiefMeeting/2025-04-01|SEO report(4/1)]] * improvement of peaks around 20 Hz and their tails [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33197|klog]] * Condor setting at Kashiwa cluster (system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs * Maintenance of Kashiw cluster (system-B) for several software update is planed. * Next meeting: 2025/04/23 * 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) * pyCBC trigger list for O4a data (Narikawa and Uchikata) * provide the CAT1 veto-definer file for IPC glitch (Uchikata) * Minutes * Commissioning * Expected improvement of inspiral range by mitigating of bump or line noise (2025/04/06) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33331|klog]] * Large breathing of PRCL and DARM [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33328|klog]] * lockloss investigation [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33395|klog]] * Summary page (Oshino) * Modified plotting range on SummaryPages [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33398|klog]] * Gauch * Gauch update: added feature to display images lazy [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33394|klog]] * Pastavi * Issue on cache file production on Pastavi server [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33341|klog]] * veto definer file * Thre preparaion is ongoing. Derek and LIGO detchar team helped a lot. * X.509 will be retired in May. * Annoucement from open data * [[https://ask.igwn.org/t/open-data-workshop-2025-study-hubs/1182|study hub]] is planed at National taiwan university in middle June * paper preparation [[https://dcc.ligo.org/LIGO-P2500167|LIGO DCC]] ----- === 20250409 (Wed.) === * Agenda * Announcement * O4 schedule: * '''O4c''': We are currently in O4c, and will end on 7 October 2025. * [[https://observing.docs.ligo.org/plan/|Run plan(03/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda250403|operation (04/03)]] [[https://wiki.ligo.org/DetChar/Telecon20250407|LIGO detchar (4/7)]] * Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC; there may be an engineering period of around a week at the beginning of the run * O4 will end on 7 October 2025 at 15:00 UTC * Scheduled conference * From Quarks to Neutron Stars: Insights from kHz gravitational waves: 2025/04/23-24 @Hongo Campus, The University of Tokyo [[https://indico2.riken.jp/event/5141/timetable/#all.detailed|web]] * Open Data Workshop 2025/05/12-14 * GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront * KIW12: 2025/05/26~27 @Shanghai Astronomical Observatory, Chinese Academy of Sciences [[https://kiw12.casconf.cn/page/1878817789607809024|web]] * deadline for registration: 2025/04/30 * JGWC(Japan Gravitational Wave Community) workshop: 2025/05/09(Fri)~10(Sat)@ JAXA Sagamihara [[https://jgwc.s.nao.ac.jp/2025年研究会/|web]] * Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK [[https://iop.eventsair.com/gr24-amaldi16/|web]] * ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) [[https://indico.cern.ch/e/icrc2025|web]] * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0166/L2516620/002/KAGRAReport_20250403.pdf|04/03]] [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/ChiefMeeting/2025-04-01|SEO report(4/1)]] * improvement of peaks around 20 Hz and their tails [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33197|klog]] * Condor setting at Kashiwa cluster (system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs * Maintenance of Kashiw cluster (system-B) for several software update is planed. * Next meeting: 2025/04/16 * 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) * pyCBC trigger list for O4a data (Narikawa and Uchikata) * provide the CAT1 veto-definer file for IPC glitch (Uchikata) * Minutes * Commissioning * Summary of recent segment for IPC glitch (2025/03~04/03) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33237|klog]] * How far can KAGRA observe BBHs with the current sensitivity? [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33255|klog]] * lockloss investigation: 2025/04/04~04/07 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33288|klog]] * BPC issue and unknown excess in 500~2000Hz [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33291|klog]] * * Summary page * Modified plotting range on SummaryPages [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33210|klog]] * Omicron stopped at 4/2 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33212|klog]] * Modified plotting range of OMC transmit power graph in SummaryPages [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33215|klog]] * Adde new guardian state to guardian plots of SummaryPages [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33219|klog]] * Added new tabs in SummaryPages (Working/Silent run/Locked (RF)) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33241|klog]] * modified plotting range of PSL table temperature and PSL QPD [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33244|klog]] * Scattered light noise * No scattered light noise and transient noise in PRCL feedback of 4/2 and 4/3 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33217|klog]] * Denoising beam jitter noise at 127 Hz using DeepClean (Shu-Wei Yeh, Chia-Jui Chou) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33192|klog]] ----- === 20250402 (Wed.) === * Agenda * Announcement * O4 schedule: * '''O4c''': We are currently in O4c, and will end on 7 October 2025. * [[https://observing.docs.ligo.org/plan/|Run plan(03/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda250320|operation (03/20)]] * Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC; there may be an engineering period of around a week at the beginning of the run * O4 will end on 7 October 2025 at 15:00 UTC * Scheduled conference * (done) LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia [[https://wiki.ligo.org/LSC/Meeting/LVKMeetingMar2025|web]] [[https://dcc.ligo.org/cgi-bin/private/DocDB/DisplayMeeting?conferenceid=1196|slide]] * From Quarks to Neutron Stars: Insights from kHz gravitational waves: 2025/04/23-24 @Hongo Campus, The University of Tokyo [[https://indico2.riken.jp/event/5141/timetable/#all.detailed|web]] * Open Data Workshop 2025/05/12-14 * GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront * (new) KIW12: 2025/05/26~27 @Shanghai Astronomical Observatory, Chinese Academy of Sciences [[https://kiw12.casconf.cn/page/1878817789607809024|web]] * deadline for registration: 2025/04/30 * (new) JGWC(Japan Gravitational Wave Community) workshop: 2025/05/09(Fri)~10(Sat)@ JAXA Sagamihara [[https://jgwc.s.nao.ac.jp/2025年研究会/|web]] * deadline for registration: 2025/04/07 * Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK [[https://iop.eventsair.com/gr24-amaldi16/|web]] * ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) [[https://indico.cern.ch/e/icrc2025|web]] * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0165/L2516589/001/KAGRAReport_20250317.pdf|03/17]] * Current noise budget [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16611|slide]] * Evaluation of the frequency and the amplitude for 40-Hz resonance forest [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33162|klog]] * Condor setting at Kashiwa cluster (system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs * Maintenance of Kashiw cluster (system-B) for several software update is planed. * Next meeting: 2025/04/09 * 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 * new label to tag the lockloss identify to the oscillation of IMC length control [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33128|klog]] * (YamaT) is the cause of the oscillation readly IMC length? not IMC pitch? * hang up of LOCKLOSS guardian due to bad treatment of string by ezca [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33078|klog]] * lockloss investigation: 2025/03/19 UTC [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33036|klog]] * lockloss investigation: 2025/03/18~3/20 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33153|klog]] * Summary page * Range estimation on SummaryPages [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33056|klog]] [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33033|klog]] * Scattered light noise * Relation between seismic motion and scattered light noise in PRCL: 2025/02/11 - 02/22 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33042|klog]] * Power outage at Kashiwa * Power outage at Kashiwa at 08:14 on 03/17; system-B was shutdown and recovered at 11:30. (See Kanda-san's mails) * veto definer (CAT1) * we will work with LV team. * (YamaT) What is the latency to provide the veto definer? --> a few month delay. * Bruco * Swapping of test and production servers for k1det2 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33177|klog]] * Segment production at Kamioka (Yuzu) * Restart the segment production [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33188|klog]] * Segment production at Kashiwa (Uchikata) * The cache file and segment files were reproduced at Kashiwa cluster, except for 2/7. At that time, the channel name to identify the overflow was changed due to the model update. [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32630|klog]] That's the cause of the failure of the reprocudtion. * Denoising beam jitter noise at 127 Hz using DeepClean (Shu-Wei Yeh) * (Yuzu) Is there the regular meeting of the noise subtraction? --> not yet * (Yuzu) What is the type of the band pass filter? --> butterworth 8-order, which is implemented in deepclean * (Yuzu) What is the update from previous analysis? --> They changed the different time and added the new channel in the analysis * (Yuzu) In addition to the ASD ratio, it's better to check the improvement of the inspiral range. * (Yokozawa) If you change the frequency band, the results will be changed? * (YamaT) deepclean can subtract both the linear and non-linear coupling. In this analysis, which both couplings were renoved? --> now only linear coupling * Presentation on the glitch investigation for O3GK data (Oshino) ----- === 20250319 (Wed.) === * Agenda * Announcement * O4 schedule: * '''O4c''': We are currently in O4c, and will end on 7 October 2025. * [[https://observing.docs.ligo.org/plan/|Run plan(02/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda250227|operation (02/27)]] * Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC * O4 will end on 7 October 2025 at 15:00 UTC * Scheduled conference * From Quarks to Neutron Stars: Insights from kHz gravitational waves: 2025/04/23-24 @Hongo Campus, The University of Tokyo [[https://indico2.riken.jp/event/5141/timetable/#all.detailed|web]] * Open Data Workshop 2025/05/12-14 * GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront * Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK [[https://iop.eventsair.com/gr24-amaldi16/|web]] * ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) [[https://indico.cern.ch/e/icrc2025|web]] * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0165/L2516538/001/KAGRAReport_20250225.pdf|02/25]] * Condor setting at Kashiwa cluster (called system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs * FY2025 Budget Plan --> The request was done. * Power outage at Kashiwa at 08:14 on 03/17; system-B was shutdown and recovered at 11:30. (See Kanda-san's mails) * Next meeting: 2025/04/02 (next week, LVK meeting is overlapped) * 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 * Trial of damping around 40 Hz [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32981|klog]] * Kick of the violin mode when PRFPMI_RF_LOCKED [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33013|klog]] [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33021|klog]] * ETMY is likely kicked frequenctly [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32973|klog]] * Noise budget of the best sensitivity on Mar. 3rd [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33015|klog]] * Tuning some offsets [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33027|klog]] * The stable lock during 7 hours was archived. * Power outage at Kashiwa * Restart k1nds2 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33005|klog]] * May I ask the recovery the cache file and segment production after the data transfer was done? * Segment production was stopped since 2/8? * Summary page * Work on SummaryPages [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=33004|klog]] ----- === 20250312 (Wed.) === * Agenda * Announcement * O4 schedule: * '''O4c''': We are currently in O4c, and will end on 7 October 2025. * [[https://observing.docs.ligo.org/plan/|Run plan(02/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda250227|operation (02/27)]] * Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC * O4 will end on 7 October 2025 at 15:00 UTC * Scheduled conference * LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia * Early bird registration will close at 2025/01/31(extended). * Open Data Workshop 2025/05/12-14 * GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront * Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK [[https://iop.eventsair.com/gr24-amaldi16/|web]] * ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) [[https://indico.cern.ch/e/icrc2025|web]] * KAGRA site report * Condor setting at Kashiwa cluster (called system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs * FY2025 Budget Plan * Next meeting: 2025/03/12 * 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 * lockloss investigation: 2025/03/05 UTC [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32903|klog]] * Omicron * Omicron stopped from 3/4 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32960|klog]] * Scattered light glitch at Yend [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32725|klog]] ----- === 20250305 (Wed.) === * Agenda * Announcement * O4 schedule: * '''O4c''': We are currently in O4c, and will end on 7 October 2025. * [[https://observing.docs.ligo.org/plan/|Run plan(02/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda250227|operation (02/27)]] * Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC * O4 will end on 7 October 2025 at 15:00 UTC * Scheduled conference * LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia * Early bird registration will close at 2025/01/31(extended). * Open Data Workshop 2025/05/12-14 * GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront * Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK [[https://iop.eventsair.com/gr24-amaldi16/|web]] * ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) [[https://indico.cern.ch/e/icrc2025|web]] * KAGRA site report * Milestone * 2/20 Implementation of the automatic 10 W PRFPMI DC opration by modifiing OMC LSC lock acquisition with the OMC LOCK guardian [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32756|klog]] * Condor setting at Kashiwa cluster (called system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs * FY2025 Budget Plan * Next meeting: 2025/03/12 * 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 * hang up of LOCKLOSS guardian due to user code errors in LSC_LOCK [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32889|klog]] * Expected improvement of inspiral range by mitigating of bump or line noise [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32877|klog]] * Lock duration statistics in January and February 2025 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32846|klog]] * lockloss investigation: 2025/02/19-23 (only 10W operation) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32803|klog]] * scattered light noise * Noise characters in PRCL control of 2025/02/22-23 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32887|klog]] [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16551|slide]] ----- === 20250226 (Wed.) === * Agenda * Announcement * O4 schedule: * '''O4c''': We are currently in O4c, and will end on 7 October 2025. * [[https://observing.docs.ligo.org/plan/|Run plan(02/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda250220|operation (02/20)]] * Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC * O4 will end on 7 October 2025 at 15:00 UTC * Scheduled conference * LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia * Early bird registration will close at 2025/01/31(extended). * Open Data Workshop 2025/05/12-14 * GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront * Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK [[https://iop.eventsair.com/gr24-amaldi16/|web]] * ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) [[https://indico.cern.ch/e/icrc2025|web]] * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0164/L2516482/001/KAGRAReport_20250213.pdf|02/13]] * Milestone * 2/19 PRFPMI DC lock with 10W input power was succeeded manually [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32748|klog]] * 2/20 Implementation of the automatic 10 W PRFPMI DC opration by modifiing OMC LSC lock acquisition with the OMC LOCK guardian [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32756|klog]] * Condor setting at Kashiwa cluster (called system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs * Initial effort submission for KAGRA authorship 2025 started. The submission deadline is Friday February 21 (2025) 17:00 (JST). [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/AuthorListCommittee/Authorlist2025/InitialEffortSubmission|wiki]] * Next meeting: 2025/03/05 * 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 * Sensitivity improvement by turning off the OMC ASC beacon [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32773|klog]] * Gauch update: overview page of the Gauch [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32765|klog]] * lockloss investigation: 2025/02/17-19 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32744|klog]] * lockloss investigation: 2025/02/10-12 [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16535|slide]] * Segment * Now several segments are available on DQSEGDB at Feb 21. [[https://git.ligo.org/computing/helpdesk/-/issues/6176#note_1327273|git repo]] * Fixed issue of unexpected suspend of regular segment. [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32758|klog]] * veto definer file [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/DAWG/Detchar/Veto%20Definer%20File%20(VDF)|wiki]] * The question about "what is the necessary minimum duration for search pipeline?" was posted to DAC WG chairs * X-pipeline: 64 s * PySTAMPAS: 520 s * stochastic search: 580 s * CW: 512 s * gstlal: O(100) s blocks * Summary page * Modified configuration file of SummaryPage [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32767|klog]] * Added links to the O4c IGWN SummaryPage [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32764|klog]] ----- === 20250219 (Wed.) === * Agenda * Announcement * O4 schedule: * '''O4c''': We are currently in O4c, and will end on 7 October 2025. * [[https://observing.docs.ligo.org/plan/|Run plan(02/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda250206|operation (02/06)]] * Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC * O4 will end on 7 October 2025 at 15:00 UTC * Scheduled conference * openMMA telecon: 2025/02/20 (online, no pre-registration required) including update reports from lvk * LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia * Early bird registration will close at 2025/01/31(extended). * Open Data Workshop 2025/05/12-14 * GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront * Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK [[https://iop.eventsair.com/gr24-amaldi16/|web]] * ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) [[https://indico.cern.ch/e/icrc2025|web]] * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0164/L2516482/001/KAGRAReport_20250213.pdf|02/13]] * Condor setting at Kashiwa cluster (called system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs * Initial effort submission for KAGRA authorship 2025 started. The submission deadline is Friday February 21 (2025) 17:00 (JST). [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/AuthorListCommittee/Authorlist2025/InitialEffortSubmission|wiki]] * confirm what activities you or your group plan to do this year in the KAGRA detchar * Next meeting: 2025/02/26 * 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 * Addded ISC_WD_L label in lockloss guardian [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32722|klog]] * Gauch update: Analysis will run when the LSC_LOCK guardian is more than OBSERVATION_WITHOUT_LINES [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32682|klog]] * Reproduction of missing lockloss information [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32673|klog32673]] * lockloss investigation: 2025/02/11 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32686|klog32686]] * lockloss investigation: 2025/02/10 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32649|klog32649]] * 60 - 100 Hz breathing sensitivity in current situation [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32647|klog32647]] * Sensitivity breathing at 60-100 Hz: Glitch to MN or IM vertical actuators [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32628|klog32628]] * Segment file * Reproduction of Segment files during 2025/02/8~10 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32630|klog32630]] * veto definer file [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/DAWG/Detchar/Veto%20Definer%20File%20(VDF)|wiki]] * The question about "what is the necessary minimum duration for search pipeline?" was posted to DAC WG chairs * X-pipeline: 64 s * PySTAMPAS: 520 s * stochastic search: 580 s * scattered light noise * Scattered light glitch at Yend [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32725|klog32725]] * Hveto * Rerun Hveto process [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32723|klog]] ----- === 20250212 (Wed.) === * canceled ----- === 20250205 (Wed.) === * Agenda * Announcement * O4 schedule: * '''O4c''': O4c will now end 7 October 2025. * [[https://observing.docs.ligo.org/plan/|Run plan(1/25 updated)]] [[https://wiki.ligo.org/Operations/Agenda250130|operation (1/30)]] * Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC * O4 will end on 7 October 2025 at 15:00 UTC * Scheduled conference * LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia * Early bird registration will close at 2025/01/16. * Open Data Workshop 2025/05/12-14 * GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront * Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK [[https://iop.eventsair.com/gr24-amaldi16/|web]] * ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) [[https://indico.cern.ch/e/icrc2025|web]] * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0164/L2516449/001/KAGRAReport_20250128.pdf|01/28]] * OMC DCPD B was broken. The protection system needs to be updated. Still, OMC DCPD A is alive. [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32535|klog]] * The KAGRA's author list 2024 will be finalized today. The final vote by KSC members will be done tomorrow. * Preparation of task list for KAGRA authorship 2025 is underway. * The working chair of low-latency WG was taken over from S.Morisaki to Alvin. * Next meeting: 2025/02/12 * 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 * lockloss investigation: 2024/1/31 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32531|klog]] * lockloss investigation: 2024/12/21~12/30 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32512|klog]] * k1nds2 was stopped due to the planned power outage [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32564|klog]]. Detchar cluster was shutdown at the same time. * line monitoring (Samurai) * line monitor update: changed the threshold to start the analysis (1/29~) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32485|klog]] * detchar cluster * Update HTCondor on DET cluster [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32574|klog]] * pycbc triggers using the clustered segment files (Narikawa) * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16430|slide]] ----- === 20250129 (Wed.) === * Agenda * Announcement * O4 schedule: * '''O4c''': O4c will now end 7 October 2025. * [[https://observing.docs.ligo.org/plan/|Run plan(1/25 updated)]] [[https://wiki.ligo.org/Operations/Agenda250123|operation (1/23)]] * Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC * O4 will end on 7 October 2025 at 15:00 UTC * Scheduled conference * LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia * Early bird registration will close at 2025/01/16. * Open Data Workshop 2025/05/12-14 * GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront * Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK [[https://iop.eventsair.com/gr24-amaldi16/|web]] * ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) [[https://indico.cern.ch/e/icrc2025|web]] * KAGRA site report [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0164/L2516433/001/KAGRAReport_20250114.pdf|01/14]] * Evaluation of effort for KAGRA authorship 2024 is underway. * Several visitors at the KAGRA site during January * Next meeting: 2025/02/05 * 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 * lockloss investigation: 2024/12/21~12/30 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32439|klog]] * lockloss investigation: 2025/01/19~22 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32435|klog]] * List of lockloss time from the states related to OBSERVATION [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32433|klog]] * run summary processes were restarted as ones for O4c. [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32480|klog]] * The KAGRA's plan to join O4 is still under discussion. * Summary page * Modified the configuration files of DET tools [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32456|klog]] * Omegascan * Running Omegascan at DetChar cluster [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32432|klog]] * Is it possible to update the HTcondor version at detchar cluster? * Scattered light noise * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16442|slide(1/10)]] [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16443|slide(1/24)]] * Pastavi * adjusting the number of images, backup of NoiseBudget data, and trend data in plotting multiple channels [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32474|klog]] * line monitoring (Samurai) * (yamat) It's better to change the definition of the locked data from `K1:GRD-IFO_STATE_N >= 100` to `K1:GRD-LSC_LOCK_STATE_N >= 9900`. * veto definer file (Uchikata) * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16430|slide]] * The histogram was updated. * They compared the results by removing T<256s or T<512s. Some short segments are not related to the occurrence of the IPC glitch. ----- === 20250122 (Wed.) === |
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| * [[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 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 ----- === 20241106 (Wed.) === |
* [[https://observing.docs.ligo.org/plan/|Run plan(1/15 updated)]] [[https://wiki.ligo.org/Operations/Agenda250116|operation (1/16)]] * Scheduled conference * LVK meeting: 2024/03/24-27 @Albert Park, Melbourne, Australia * Early bird registration will close at 2025/01/16. * Open Data Workshop 2024/05/12-14 * 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/0164/L2516433/001/KAGRAReport_20250114.pdf|01/14]] * Evaluation of effort for KAGRA authorship 2024 is underway. * Several visitors at the KAGRA site during January * Next meeting: 2025/01/29 * 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 * lockloss investigation: 2024/12/31 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32358|klog]] * lockloss investigation: 2024/12/21~12/30 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32409|klog]] * Noise budget plot for the DARM sensitivity in November 2024 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32360|klog]] * New DARM sensitivity (2025/01/19) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32391|klog]] * Add a duration of staying in the last state to the lockloss list [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32380|klog]] [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/misc/html/lockloss_o4b_break.html|web]] * Lock duration was added to the lockloss summary page. It’s better to use a rough estimate. * Is it possible to show the truncated value as an integer? --> yes * Summary page * Modified the configuration files of DET tools [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32417|klog]] * Changed the plotting range of range plots [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32411|klog]] * The Summary page shows two kinds of inspiral range values, which are values computed by YamaT-san's script and gwsumm. There are some differences due to different configurations. In the future, it's better to clarify the cause of the difference between the two values * Segment file * Update script to generate Segment files for the past data [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32349|klog]] [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32408|klog]] * Scattered light noise * Scattered light noise reoprt: ASD of OPTLV channels and 2024.12.13 data [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32344|klog]] * Noise subtraction of beam jitter noise around 120 Hz * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16440|slide]] ----- === 20250115 (Wed.) === |
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| * [[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 |
* [[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 * Early bird registration will close at 2025/01/16. * Open Data Workshop 2024/05/12-14 * 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]] * Evaluation of effort for KAGRA authorship 2024 is underway. * Several visitors at the KAGRA site during January * Power outage around the KAGRA site --> no impact for KAGRA * Mail server issue, from January 10th, 21:09 to January 11th, 22:56 JST * Next meeting: 2025/01/22 |
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| * Summary page * Tested new version of SummaryPage on test server[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=31462|klog]] ----- === 20241030 (Wed.) === |
* Line Monitor * Automation of the daily monitor for identifying and fitting the line noise [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32284|klog]] * Segment file * The segment name of the IPC glitch was changed from `K1-DAQ-IPC_ERROR` to `K1-DAQ_IPC_ERROR`. [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32339|klog]] * Due to IPC glitch, the locked segment will be devided into short segments. They evaluated the fraction of the short segments. The actual threshold is necessary to be determined in future. [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16430|slide]] * The current favor is 256 s. When we applied this threshold, we will exclude 1% data from the science mode. We need to collect the requirements of each pipeline. * Noise subtraction pipelines (Chia-Jui Chou) * deepclean (Chia-Jui Chou) * run at kamioka * seqARIMA (David Hui, Sangin Kim) * run at kashiwa * ICA (Kume, Itoh, Yokoyama) * The common goal is to subtract the noise. * it's important to test the long term stability. ----- === 20250108 (Wed.) === |
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| * [[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 |
* [[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 * Early bird registration will close at 2025/01/16. * Open Data Workshop 2024/05/12-14 * 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]] * For the summary during holidays, see Miyoki-san's mail. * Evaluation of effort for KAGRA authorship 2024 is underway. * Several visiters at KAGRA site during January * Next meeting: 2025/01/15 |
| Line 87: | Line 649: |
| * 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) * 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)]] * 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) * 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)]] * [[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) * 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) [[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) * 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. ----- === 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]] ----- === 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]] |
* Summarize the lockloss count labeled by the SYS_LOCKLOSS guardian [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32170|klog]] [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16404|table]] * Categorization by the behavior of POP90 before the lockloss [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=32167|klog]] * Segment file * The segment of `K1-GRD_PEM_EARTHQUAKE` is already available on DQSEGDB. For other new segments will be available at DQSEGDB. ([[https://git.ligo.org/computing/helpdesk/-/issues/6176#note_1245022|git issue]]) * Name convention issue came up. Plan: `K1-DAQ-IPC_ERROR` --> `K1-DAQ_IPC_ERROR`. Before releasing this segment, we have a chance to change the name. * We need to update other scripts if we change the segment name. Developers or maintainers, please check your code. * It's better to keep the code in the [[https://github.com/gw-detchar/tools|GitHub repository]] up-to-date. Remember to push the code after you modified it or confirmed it's stable. * The line monitor is working well during the holidays. [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/LineMonitor/day/today/|web]] |
| Line 1287: | Line 660: |
| * [[KAGRA/Subgroups/DET/Meeting/2024|2024]] |
Meetings
- Meeting time: 11:00-11:30 JST/KST on every Wednesday
- Meeting room: Zoom3
Contents
20250423 (Wed.)
- Agenda
- Announcement
- O4 schedule:
O4c: We are currently in O4c, and will end on 7 October 2025.
Run plan(03/15 updated) operation (04/03) LIGO detchar (4/7)
- Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC; there may be an engineering period of around a week at the beginning of the run
- O4 will end on 7 October 2025 at 15:00 UTC
- Scheduled conference
From Quarks to Neutron Stars: Insights from kHz gravitational waves: 2025/04/23-24 @Hongo Campus, The University of Tokyo web
- Open Data Workshop 2025/05/12-14
- GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
KIW12: 2025/05/26~27 @Shanghai Astronomical Observatory, Chinese Academy of Sciences web
- deadline for registration: 2025/04/30
JGWC(Japan Gravitational Wave Community) workshop: 2025/05/09(Fri)~10(Sat)@ JAXA Sagamihara web
Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK web
ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) web
KAGRA site report 04/18 SEO report(4/1)
- Maintenance of Kashiw cluster (system-B) was done on April 18.
- The purpose is for several software updates and for the update of condor setting to reserve CPUs for high-priority jobs.
Retirement of X.509 authentification web. Instead, please use SciTokens. web
- Next meeting: 2025/04/30
- O4 schedule:
- 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)
- Announcement
- Minutes
- Commissioning
- veto definer file
- The CAL group decided to generate the strain data of O4a KAGRA data by applying the high-pass filter (FIR) and correcting the time-delay shift. Now it's underway.
- Originally, we planned to exclude the 1 second, including the IPC glitch, from the analysis. The additional FIR filter widens the time affected by the IPC glitch. We changed the plan to exclude 7 seconds (3+1+3 seconds) from the analysis.
- After excluding the segment including the IPC glitch, we also exclude the science mode of less than 64 seconds.
The preparation of the veto definer file is underway. The procedure and other helpful links are summarized in wiki by Uchikata-san.
20250416 (Wed.)
- Agenda
- Announcement
- O4 schedule:
O4c: We are currently in O4c, and will end on 7 October 2025.
Run plan(03/15 updated) operation (04/03) LIGO detchar (4/7)
- Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC; there may be an engineering period of around a week at the beginning of the run
- O4 will end on 7 October 2025 at 15:00 UTC
- Scheduled conference
From Quarks to Neutron Stars: Insights from kHz gravitational waves: 2025/04/23-24 @Hongo Campus, The University of Tokyo web
- Open Data Workshop 2025/05/12-14
- GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
KIW12: 2025/05/26~27 @Shanghai Astronomical Observatory, Chinese Academy of Sciences web
- deadline for registration: 2025/04/30
JGWC(Japan Gravitational Wave Community) workshop: 2025/05/09(Fri)~10(Sat)@ JAXA Sagamihara web
Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK web
ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) web
KAGRA site report 04/03 SEO report(4/1)
improvement of peaks around 20 Hz and their tails klog
- Condor setting at Kashiwa cluster (system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs
- Maintenance of Kashiw cluster (system-B) for several software update is planed.
- Next meeting: 2025/04/23
- O4 schedule:
- 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)
- Announcement
- Minutes
- Commissioning
- Summary page (Oshino)
Modified plotting range on SummaryPages klog
- Gauch
Gauch update: added feature to display images lazy klog
- Pastavi
Issue on cache file production on Pastavi server klog
- veto definer file
- Thre preparaion is ongoing. Derek and LIGO detchar team helped a lot.
- X.509 will be retired in May.
- Annoucement from open data
20250409 (Wed.)
- Agenda
- Announcement
- O4 schedule:
O4c: We are currently in O4c, and will end on 7 October 2025.
Run plan(03/15 updated) operation (04/03) LIGO detchar (4/7)
- Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC; there may be an engineering period of around a week at the beginning of the run
- O4 will end on 7 October 2025 at 15:00 UTC
- Scheduled conference
From Quarks to Neutron Stars: Insights from kHz gravitational waves: 2025/04/23-24 @Hongo Campus, The University of Tokyo web
- Open Data Workshop 2025/05/12-14
- GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
KIW12: 2025/05/26~27 @Shanghai Astronomical Observatory, Chinese Academy of Sciences web
- deadline for registration: 2025/04/30
JGWC(Japan Gravitational Wave Community) workshop: 2025/05/09(Fri)~10(Sat)@ JAXA Sagamihara web
Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK web
ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) web
KAGRA site report 04/03 SEO report(4/1)
improvement of peaks around 20 Hz and their tails klog
- Condor setting at Kashiwa cluster (system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs
- Maintenance of Kashiw cluster (system-B) for several software update is planed.
- Next meeting: 2025/04/16
- O4 schedule:
- 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)
- Announcement
- Minutes
- Commissioning
- Summary page
Modified plotting range on SummaryPages klog
Omicron stopped at 4/2 klog
Modified plotting range of OMC transmit power graph in SummaryPages klog
Adde new guardian state to guardian plots of SummaryPages klog
Added new tabs in SummaryPages (Working/Silent run/Locked (RF)) klog
modified plotting range of PSL table temperature and PSL QPD klog
- Scattered light noise
No scattered light noise and transient noise in PRCL feedback of 4/2 and 4/3 klog
Denoising beam jitter noise at 127 Hz using DeepClean (Shu-Wei Yeh, Chia-Jui Chou) klog
20250402 (Wed.)
- Agenda
- Announcement
- O4 schedule:
O4c: We are currently in O4c, and will end on 7 October 2025.
Run plan(03/15 updated) operation (03/20)
- Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC; there may be an engineering period of around a week at the beginning of the run
- O4 will end on 7 October 2025 at 15:00 UTC
- Scheduled conference
(done) LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia web slide
From Quarks to Neutron Stars: Insights from kHz gravitational waves: 2025/04/23-24 @Hongo Campus, The University of Tokyo web
- Open Data Workshop 2025/05/12-14
- GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
(new) KIW12: 2025/05/26~27 @Shanghai Astronomical Observatory, Chinese Academy of Sciences web
- deadline for registration: 2025/04/30
(new) JGWC(Japan Gravitational Wave Community) workshop: 2025/05/09(Fri)~10(Sat)@ JAXA Sagamihara web
- deadline for registration: 2025/04/07
Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK web
ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) web
KAGRA site report 03/17
- Condor setting at Kashiwa cluster (system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs
- Maintenance of Kashiw cluster (system-B) for several software update is planed.
- Next meeting: 2025/04/09
- O4 schedule:
- 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)
- Announcement
- Minutes
- Commissioning
new label to tag the lockloss identify to the oscillation of IMC length control klog
- (YamaT) is the cause of the oscillation readly IMC length? not IMC pitch?
hang up of LOCKLOSS guardian due to bad treatment of string by ezca klog
lockloss investigation: 2025/03/19 UTC klog
lockloss investigation: 2025/03/18~3/20 klog
- Summary page
Range estimation on SummaryPages klog klog
- Scattered light noise
Relation between seismic motion and scattered light noise in PRCL: 2025/02/11 - 02/22 klog
- Power outage at Kashiwa
- Power outage at Kashiwa at 08:14 on 03/17; system-B was shutdown and recovered at 11:30. (See Kanda-san's mails)
- veto definer (CAT1)
- we will work with LV team.
(YamaT) What is the latency to provide the veto definer? --> a few month delay.
- Bruco
Swapping of test and production servers for k1det2 klog
- Segment production at Kamioka (Yuzu)
Restart the segment production klog
- Segment production at Kashiwa (Uchikata)
The cache file and segment files were reproduced at Kashiwa cluster, except for 2/7. At that time, the channel name to identify the overflow was changed due to the model update. klog That's the cause of the failure of the reprocudtion.
Denoising beam jitter noise at 127 Hz using DeepClean (Shu-Wei Yeh)
(Yuzu) Is there the regular meeting of the noise subtraction? --> not yet
(Yuzu) What is the type of the band pass filter? --> butterworth 8-order, which is implemented in deepclean
(Yuzu) What is the update from previous analysis? --> They changed the different time and added the new channel in the analysis
- (Yuzu) In addition to the ASD ratio, it's better to check the improvement of the inspiral range.
- (Yokozawa) If you change the frequency band, the results will be changed?
(YamaT) deepclean can subtract both the linear and non-linear coupling. In this analysis, which both couplings were renoved? --> now only linear coupling
- Presentation on the glitch investigation for O3GK data (Oshino)
- Commissioning
20250319 (Wed.)
- Agenda
- Announcement
- O4 schedule:
O4c: We are currently in O4c, and will end on 7 October 2025.
Run plan(02/15 updated) operation (02/27)
- Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC
- O4 will end on 7 October 2025 at 15:00 UTC
- Scheduled conference
From Quarks to Neutron Stars: Insights from kHz gravitational waves: 2025/04/23-24 @Hongo Campus, The University of Tokyo web
- Open Data Workshop 2025/05/12-14
- GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK web
ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) web
KAGRA site report 02/25
- Condor setting at Kashiwa cluster (called system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs
FY2025 Budget Plan --> The request was done.
- Power outage at Kashiwa at 08:14 on 03/17; system-B was shutdown and recovered at 11:30. (See Kanda-san's mails)
- Next meeting: 2025/04/02 (next week, LVK meeting is overlapped)
- O4 schedule:
- 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)
- Announcement
- Minutes
- Commissioning
- Power outage at Kashiwa
Restart k1nds2 klog
- May I ask the recovery the cache file and segment production after the data transfer was done?
- Segment production was stopped since 2/8?
- Summary page
Work on SummaryPages klog
20250312 (Wed.)
- Agenda
- Announcement
- O4 schedule:
O4c: We are currently in O4c, and will end on 7 October 2025.
Run plan(02/15 updated) operation (02/27)
- Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC
- O4 will end on 7 October 2025 at 15:00 UTC
- Scheduled conference
- LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia
- Early bird registration will close at 2025/01/31(extended).
- Open Data Workshop 2025/05/12-14
- GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK web
ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) web
- LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia
- KAGRA site report
- Condor setting at Kashiwa cluster (called system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs
- FY2025 Budget Plan
- Next meeting: 2025/03/12
- O4 schedule:
- 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)
- Announcement
- Minutes
- Commissioning
lockloss investigation: 2025/03/05 UTC klog
- Commissioning
20250305 (Wed.)
- Agenda
- Announcement
- O4 schedule:
O4c: We are currently in O4c, and will end on 7 October 2025.
Run plan(02/15 updated) operation (02/27)
- Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC
- O4 will end on 7 October 2025 at 15:00 UTC
- Scheduled conference
- LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia
- Early bird registration will close at 2025/01/31(extended).
- Open Data Workshop 2025/05/12-14
- GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK web
ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) web
- LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia
- KAGRA site report
- Milestone
2/20 Implementation of the automatic 10 W PRFPMI DC opration by modifiing OMC LSC lock acquisition with the OMC LOCK guardian klog
- Milestone
- Condor setting at Kashiwa cluster (called system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs
- FY2025 Budget Plan
- Next meeting: 2025/03/12
- O4 schedule:
- 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)
- Announcement
- Minutes
- Commissioning
- scattered light noise
20250226 (Wed.)
- Agenda
- Announcement
- O4 schedule:
O4c: We are currently in O4c, and will end on 7 October 2025.
Run plan(02/15 updated) operation (02/20)
- Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC
- O4 will end on 7 October 2025 at 15:00 UTC
- Scheduled conference
- LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia
- Early bird registration will close at 2025/01/31(extended).
- Open Data Workshop 2025/05/12-14
- GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK web
ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) web
- LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia
KAGRA site report 02/13
- Condor setting at Kashiwa cluster (called system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs
Initial effort submission for KAGRA authorship 2025 started. The submission deadline is Friday February 21 (2025) 17:00 (JST). wiki
- Next meeting: 2025/03/05
- O4 schedule:
- 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)
- Announcement
- Minutes
- Commissioning
- Segment
veto definer file wiki
- The question about "what is the necessary minimum duration for search pipeline?" was posted to DAC WG chairs
- X-pipeline: 64 s
- PySTAMPAS: 520 s
- stochastic search: 580 s
- CW: 512 s
- gstlal: O(100) s blocks
- The question about "what is the necessary minimum duration for search pipeline?" was posted to DAC WG chairs
- Summary page
Modified configuration file of SummaryPage klog
Added links to the O4c IGWN SummaryPage klog
20250219 (Wed.)
- Agenda
- Announcement
- O4 schedule:
O4c: We are currently in O4c, and will end on 7 October 2025.
Run plan(02/15 updated) operation (02/06)
- Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC
- O4 will end on 7 October 2025 at 15:00 UTC
- Scheduled conference
- openMMA telecon: 2025/02/20 (online, no pre-registration required) including update reports from lvk
- LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia
- Early bird registration will close at 2025/01/31(extended).
- Open Data Workshop 2025/05/12-14
- GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK web
ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) web
KAGRA site report 02/13
- Condor setting at Kashiwa cluster (called system-B) will be updated not to occupy by single user and to reserve CPUs for high priority jobs
Initial effort submission for KAGRA authorship 2025 started. The submission deadline is Friday February 21 (2025) 17:00 (JST). wiki
- confirm what activities you or your group plan to do this year in the KAGRA detchar
- Next meeting: 2025/02/26
- O4 schedule:
- 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)
- Announcement
- Minutes
- Commissioning
Addded ISC_WD_L label in lockloss guardian klog
Gauch update: Analysis will run when the LSC_LOCK guardian is more than OBSERVATION_WITHOUT_LINES klog
Reproduction of missing lockloss information klog32673
lockloss investigation: 2025/02/11 klog32686
lockloss investigation: 2025/02/10 klog32649
60 - 100 Hz breathing sensitivity in current situation klog32647
Sensitivity breathing at 60-100 Hz: Glitch to MN or IM vertical actuators klog32628
- Segment file
Reproduction of Segment files during 2025/02/8~10 klog32630
veto definer file wiki
- The question about "what is the necessary minimum duration for search pipeline?" was posted to DAC WG chairs
- X-pipeline: 64 s
- PySTAMPAS: 520 s
- stochastic search: 580 s
- The question about "what is the necessary minimum duration for search pipeline?" was posted to DAC WG chairs
- scattered light noise
Scattered light glitch at Yend klog32725
- Hveto
Rerun Hveto process klog
- Commissioning
20250212 (Wed.)
- canceled
20250205 (Wed.)
- Agenda
- Announcement
- O4 schedule:
O4c: O4c will now end 7 October 2025.
Run plan(1/25 updated) operation (1/30)
- Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC
- O4 will end on 7 October 2025 at 15:00 UTC
- Scheduled conference
- LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia
- Early bird registration will close at 2025/01/16.
- Open Data Workshop 2025/05/12-14
- GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK web
ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) web
- LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia
KAGRA site report 01/28
OMC DCPD B was broken. The protection system needs to be updated. Still, OMC DCPD A is alive. klog
- The KAGRA's author list 2024 will be finalized today. The final vote by KSC members will be done tomorrow.
- Preparation of task list for KAGRA authorship 2025 is underway.
- The working chair of low-latency WG was taken over from S.Morisaki to Alvin.
- Next meeting: 2025/02/12
- O4 schedule:
- 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)
- Announcement
- Minutes
20250129 (Wed.)
- Agenda
- Announcement
- O4 schedule:
O4c: O4c will now end 7 October 2025.
Run plan(1/25 updated) operation (1/23)
- Maintenance/commissioning break from 1 April 2025 at 15:00 UTC to 4 June 2025 at 15:00 UTC
- O4 will end on 7 October 2025 at 15:00 UTC
- Scheduled conference
- LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia
- Early bird registration will close at 2025/01/16.
- Open Data Workshop 2025/05/12-14
- GWADW 2025: 2025/05/18~5/23 @the Hilton Cocoa Beach (Florida) Oceanfront
Amaldi & GR: 2025/07/14-18 @Scottish Exhibition Centre, Glasgow, UK web
ICRC 2025: 2025/07/15-24 @Geneva (Switzerland) web
- LVK meeting: 2025/03/24-27 @Albert Park, Melbourne, Australia
KAGRA site report 01/14
- Evaluation of effort for KAGRA authorship 2024 is underway.
- Several visitors at the KAGRA site during January
- Next meeting: 2025/02/05
- O4 schedule:
- 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)
- Announcement
- Minutes
- Commissioning
- Summary page
Modified the configuration files of DET tools klog
- Omegascan
- Scattered light noise
- Pastavi
adjusting the number of images, backup of NoiseBudget data, and trend data in plotting multiple channels klog
- line monitoring (Samurai)
(yamat) It's better to change the definition of the locked data from K1:GRD-IFO_STATE_N >= 100 to K1:GRD-LSC_LOCK_STATE_N >= 9900.
- veto definer file (Uchikata)
- The histogram was updated.
They compared the results by removing T<256s or T<512s. Some short segments are not related to the occurrence of the IPC glitch.
20250122 (Wed.)
- Agenda
- Announcement
- O4b schedule:
O4b: O4b will now end 9 June 2025.
- Scheduled conference
- LVK meeting: 2024/03/24-27 @Albert Park, Melbourne, Australia
- Early bird registration will close at 2025/01/16.
- Open Data Workshop 2024/05/12-14
- 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
- LVK meeting: 2024/03/24-27 @Albert Park, Melbourne, Australia
KAGRA site report 01/14
- Evaluation of effort for KAGRA authorship 2024 is underway.
- Several visitors at the KAGRA site during January
- Next meeting: 2025/01/29
- O4b schedule:
- 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)
- Announcement
- Minutes
- Commissioning
lockloss investigation: 2024/12/31 klog
lockloss investigation: 2024/12/21~12/30 klog
Noise budget plot for the DARM sensitivity in November 2024 klog
New DARM sensitivity (2025/01/19) klog
Add a duration of staying in the last state to the lockloss list klog web
- Lock duration was added to the lockloss summary page. It’s better to use a rough estimate.
Is it possible to show the truncated value as an integer? --> yes
- Summary page
Modified the configuration files of DET tools klog
Changed the plotting range of range plots klog
- The Summary page shows two kinds of inspiral range values, which are values computed by YamaT-san's script and gwsumm. There are some differences due to different configurations. In the future, it's better to clarify the cause of the difference between the two values
- Segment file
- Scattered light noise
Scattered light noise reoprt: ASD of OPTLV channels and 2024.12.13 data klog
- Noise subtraction of beam jitter noise around 120 Hz
- Commissioning
20250115 (Wed.)
- Agenda
- Announcement
- O4b schedule:
O4b: O4b will now end 9 June 2025.
- Scheduled conference
- LVK meeting: 2024/03/24-27 @Albert Park, Melbourne, Australia
- Early bird registration will close at 2025/01/16.
- Open Data Workshop 2024/05/12-14
- 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
- LVK meeting: 2024/03/24-27 @Albert Park, Melbourne, Australia
KAGRA site report 12/11
- Evaluation of effort for KAGRA authorship 2024 is underway.
- Several visitors at the KAGRA site during January
Power outage around the KAGRA site --> no impact for KAGRA
- Mail server issue, from January 10th, 21:09 to January 11th, 22:56 JST
- Next meeting: 2025/01/22
- O4b schedule:
- 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)
- Announcement
- Minutes
- Commissioning support
- Line Monitor
Automation of the daily monitor for identifying and fitting the line noise klog
- Segment file
The segment name of the IPC glitch was changed from K1-DAQ-IPC_ERROR to K1-DAQ_IPC_ERROR. klog
Due to IPC glitch, the locked segment will be devided into short segments. They evaluated the fraction of the short segments. The actual threshold is necessary to be determined in future. slide
- The current favor is 256 s. When we applied this threshold, we will exclude 1% data from the science mode. We need to collect the requirements of each pipeline.
- Noise subtraction pipelines (Chia-Jui Chou)
- deepclean (Chia-Jui Chou)
- run at kamioka
- seqARIMA (David Hui, Sangin Kim)
- run at kashiwa
- ICA (Kume, Itoh, Yokoyama)
- The common goal is to subtract the noise.
- it's important to test the long term stability.
- deepclean (Chia-Jui Chou)
20250108 (Wed.)
- Agenda
- Announcement
- O4b schedule:
O4b: O4b will now end 9 June 2025.
- Scheduled conference
- LVK meeting: 2024/03/24-27 @Albert Park, Melbourne, Australia
- Early bird registration will close at 2025/01/16.
- Open Data Workshop 2024/05/12-14
- 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
- LVK meeting: 2024/03/24-27 @Albert Park, Melbourne, Australia
KAGRA site report 12/11
- For the summary during holidays, see Miyoki-san's mail.
- Evaluation of effort for KAGRA authorship 2024 is underway.
- Several visiters at KAGRA site during January
- Next meeting: 2025/01/15
- O4b schedule:
- 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)
- Announcement
- Minutes
- Commissioning support
- Segment file
The segment of K1-GRD_PEM_EARTHQUAKE is already available on DQSEGDB. For other new segments will be available at DQSEGDB. (git issue)
Name convention issue came up. Plan: K1-DAQ-IPC_ERROR --> K1-DAQ_IPC_ERROR. Before releasing this segment, we have a chance to change the name.
- We need to update other scripts if we change the segment name. Developers or maintainers, please check your code.
It's better to keep the code in the GitHub repository up-to-date. Remember to push the code after you modified it or confirmed it's stable.
The line monitor is working well during the holidays. web