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=== 202205613 (Mon.) === === 20220620 (Mon.) ===
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    * [[KAGRA/Subgroups/DET/Meeting/220613|KAGRA detector status220613]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
   * DQR update (Yuzurihara)
    * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20986|klog#20986]]
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
   * 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

-----
=== 20220613 (Mon.) ===
 * Agenda
   * Announcement
    * LIGO DetChar F2F is July 18-19 with noise sprint July 20-22. In person + remote style [[https://wiki.ligo.org/DetChar/Jul2022DetCharF2F|wiki]]
    * New paper about DQ for pyCBC [[https://arxiv.org/abs/2204.03091|arXiv]]
   * KAGRA commissioning reports (Yokozawa)
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
   * DQR update (Yuzurihara)
   * Update contents of summary page? (Oshino)
   * Combine DET computer resources into one DET cluster at Kamioka site
 * Minutes
   * KAGRA commissioning reports
    * Explained by Yokozawa-san see [[KAGRA/Subgroups/DET/Meeting/220613|KAGRA detector status220613]]
   * Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
   * DQR update (Yuzurihara)
    * Task to compute inspiral range is running on k1det1 [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20986|klog#20986]]
   * Update contents of summary page? (Oshino)
    * Updated DetChar and VIS tab [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21060|klog#21060]]

Meetings

  • Meeting time: 13:00-13:30 JST/KST on every Monday
  • Meeting room: Zoom


Agenda & Minutes


20220620 (Mon.)

  • Agenda
    • Announcement
      • LIGO DetChar F2F is July 18-19 with noise sprint July 20-22. In person + remote style wiki

      • New paper about DQ for pyCBC arXiv

    • KAGRA commissioning reports (Yokozawa)
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    • DQR update (Yuzurihara)
    • Update contents of summary page? (Oshino)
    • Combine DET computer resources into one DET cluster at Kamioka site


20220613 (Mon.)

  • Agenda
    • Announcement
      • LIGO DetChar F2F is July 18-19 with noise sprint July 20-22. In person + remote style wiki

      • New paper about DQ for pyCBC arXiv

    • KAGRA commissioning reports (Yokozawa)
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    • DQR update (Yuzurihara)
    • Update contents of summary page? (Oshino)
    • Combine DET computer resources into one DET cluster at Kamioka site
  • Minutes
    • KAGRA commissioning reports
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    • DQR update (Yuzurihara)
      • Task to compute inspiral range is running on k1det1 klog#20986

    • Update contents of summary page? (Oshino)


20220606 (Mon.)

  • Canceled due to conflict with KIW9


20220530 (Mon.)

  • Agenda
    • Announcement
      • The 9th KAGRA International Workshop (KIW) web (registration by May 31, 2022)

      • JPS meeting : registration by June 2 web

        • Question : Someone should present the status of DetChar and activity toward O4?

      • LIGO DetChar F2F is July 18-19 with noise sprint July 20-22. In person + remote style wiki

      • Final KAGRA report at OpsDiv call was done at May. 26, 2022 slide for May 26

    • KAGRA commissioning reports
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    • DQR update (Yuzurihara)
    • Update contents of summary page? (Oshino)
    • Combine DET computer resources into one DET cluster at Kamioka site
  • Minutes
    • KAGRA commissioning reports
      • Pumping down of EY started at 2022 May 24 9:45~ klog#20851

      • Pumping down of IY started at 2022 May 25 9:35~ klog#20874

    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
      • hveto worked with omicron triggers generated by a new version of Omicron
        • There seems to be no compatibility between omicron version we use and one in igwn-py39.
        • There may be also no compatibility between SummaryPages we use and omicron in igwn-py39.

        • If so, we need to move igwn-py39 for all tools (SummaryPages, omicron, hveto etc.)

        • SummaryPages in igwn-py39 had worked well in gps mode (reported a few weeks ago).

        • TY want to gather the volunteer to test SummaryPages in daily mode.

      • gwpy can use 'NDSSERVER' environmental variable
        • We don't need to do the code hack for nds2.py in gwpy.
      • (Yuzu) In DAC call, I heard that operation test of gw_data_find is on-going on m31 by Compu&Soft members. It may be available in a few week.

    • DQR update (Yuzurihara)
      • I prepared the code of one task to compute inspiral range at the time of GW alert.
      • I send the merge request git repo and will take the review.

    • Update contents of summary page? (Oshino)


20220523 (Mon.)

  • Agenda
    • Announcement
      • New accounts for accessing LIGO resources (registration by May 22)
      • The 9th KAGRA International Workshop (KIW) web (registration by May 31, 2022)

      • Final KAGRA report at OpsDiv call is planned at May. 26, 2022 slide for Mar 31slide for Feb 17

      • JPS meeting : registration by June 2 web

    • KAGRA commissioning reports
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
      • call for volunteers from remote site, to test hveto and FScan. Please let us (Yuzuriahra or YamaT) know.
    • DQR update (Yuzurihara)
    • Update contents of summary page? (Oshino)
    • Combine DET computer resources into one DET cluster at Kamioka site
  • Minutes
    • KAGRA commissioning reports
      • In-air health check for suspensions (ITMY, ETMY) was by Ushiba and other members.
      • On last Friday, we had the acceptance check to close the chamber for Yarm. It passed.
      • ADC glitch problem on many suspensions by YamaT klog#20815

    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
      • hveto itself worked without no additional code hack.
      • Compatible error in trigger file format was occurred
        • The 'peak' columns have incompatible types: ['object', 'float64', 'float64']

        • In TY's remember, Kozakai-san faced and solved same problem...(?)
      • TY want to re-arrange cluttered O3-segments including test ones.
      • (Yuzu) This error is related to klog#19846 ?

    • DQR update (Yuzurihara)
      • no update
    • Update contents of summary page? (Oshino)
    • Analysis of transient signals of IMMT1 (Aogaku members)


20220516 (Mon.)

  • Agenda
    • Announcement
      • Vigo DetChar paper arXiv

      • The 9th KAGRA International Workshop (KIW) web (registration by May 31, 2022)

      • GWADW2022 web (registration closed)

      • The GRAvitational - wave Science&technology Symposia (GRASS 2022) web (registration closed)

      • (Final) KAGRA report at OpsDiv call is planned at May. 26, 2022 slide for Mar 31slide for Feb 17

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

  • Minuts
    • Announcement
      • If you talk about DetChar activity, please let chairs know

    • KAGRA commissioning reports
      • In-air health check for suspensions (ITMY, ETMY) is on-going by Ushiba klog#20724 klog#20729

      • Turned "ON" two radiation shield coolers for EXC. But, on Sunday, it turned off due to mistake klog#20712 klog#20736

    • DQR update (Yuzurihara)
      • Operation test for DQR application is on-going on DetChar dedicated machine

      • From last Wednesday, the alert from MDC stopped (I'm not sure this is scheduled or not...)
        • That is because 1st period of MDC finished
      • The code review will start gradually
      • You can see the summary report of MDC alert on GraceDB

    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
      • FScan cannot find IGWN.
        • YamaT plan to use it which is a part of lalpulsar packages.
      • Trigger files are required for hveto test.
        • YamaT plan to do the consistency check with O3 triggers and the configuration file.
        • Trigger files are on the DET file server and they must be mounted from the test server.
        • Oshino-san will share a past configuration file.
    • Update contents of summary page? (Oshino)
      • summary page is working well
    • Combine DET computer resources into one DET cluster at Kamioka site
      • no update
    • Report of new tool development? (Darkhan)
      • debugging code


20220509 (Mon.)

  • Agenda
    • Announcement
    • KAGRA commissioning reports
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
      • call for volunteers from remote site, to test hveto and FScan. Please let us (Yuzuriahra or YamaT) know.
    • DQR update (Yuzurihara)
    • Update contents of summary page? (Oshino)
    • Combine DET computer resources into one DET cluster at Kamioka site
    • Report of new tool development? (Darkhan)
    • Glitch subtraction survey for O4
      • see mail from Davis Derek (2022 May 3)
      • deadline : May 16
      • The glitch subtraction activities are managed under DET. I would like to ask regular report in DET meeting.
  • Minuts
    • Announcement
    • KAGRA commissioning reports
      • ADC noise measurement klog#20658

      • In-air health check for Yarm suspensions (ITMY and ETMY) is on-going.
        • If no problem, review will be done next week and pumping down will start on week of May 23
    • DQR update (Yuzurihara)
      • no update
    • Report of new tool development? (Darkhan)
      • add channel list?


20220502 (Mon.)

  • Agenda
    • Announcement
    • KAGRA commissioning reports
      • PRM cause the glitch in IMMT1 OPLEV signal and POP forword QPD signal klog#20539

      • In-air health check for suspensions (ITMY, ETMY) is on-going by Ushiba klog#20631 klog#20632

    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
      • call for volunteers from remote site, to test hveto and FScan. Please let us (Yuzuriahra or YamaT) know.
    • DQR update (Yuzurihara)
    • Update contents of summary page? (Oshino)
    • Combine DET computer resources into one DET cluster at Kamioka site
    • Report of new tool development? (Darkhan)
    • Data Quality flag for O4a
      • We are asking the concrete requirement for DAC members (CBC, burst, Stochastic)
      • This is related to discuss the ER period and time
    • Analysis of TCam photos of ITMY and ETMY with the metal scale by Tcam
  • Minutes
    • Announcement
      • GWADW2022 web

      • The 9th KAGRA International Workshop (KIW) web

      • The GRAvitational - wave Science&technology Symposia (GRASS 2022) web

    • DQR update (Yuzurihara)
      • no update.
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
      • no update
    • Update contents of summary page? (Oshino)
    • Analysis of TCam photos of ITMY and ETMY with the metal scale by Tcam klog#20574

      • analysis is on-going by Aogaku students. Report will appear soon.


20220425 (Mon.)

  • canceld


20220418 (Mon.)

  • Agenda
    • Announcement
      • monthly maintenance for JGWDoc + JGW wiki + klog on April 18 13:00-16:00 JST.
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
      • call for volunteers from remote site, to test hveto and FScan. Please let us (Yuzuriahra or YamaT) know.
    • DQR update (Yuzurihara)
    • Update contents of summary page? (Oshino)
    • Combine DET computer resources into one DET cluster at Kamioka site
    • Report of new tool development? (Darkhan)
  • Minutes
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
      • No updates in last week.
      • Some volunteers for testing of hveto, fscan are sitll wanted.
      • We should start to test also iDQ from now on for future observing runs (O5, O6...)
    • DQR update (Yuzurihara)
      • operation test for tools is on-going without error and trouble
    • Update contents of summary page? (Oshino)
      • no update
    • Combine DET computer resources into one DET cluster at Kamioka site
      • no update
    • Report of new tool development? (Darkhan)
    • 120Hz glitches investigation during O3GK


20220411 (Mon.)

  • Agenda
    • Announcement
      • Workshop 2022/04/15 web page

        • DetChar talk is planed by Yokozawa. When he circulates slide, put comments on slide.

    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
      • call for volunteers from remote site, to test hveto and FScan. Please let us (Yuzuriahra or YamaT) know.
    • Exchange of opinions between DET members(YamaT, Sawada(OPS), Yuzurihara) and DMG members(Kanda, Oohara)
    • DQR update (Yuzurihara)
    • Update contents of summary page? (Oshino)
    • Combine DET computer resources into one DET cluster at Kamioka site
      • (Oshino) explain idea, goal, and timeline
    • Report of new tool development? (Darkhan)
    • Follow-up report of remote contribution from Aoyama Gakuin univ.
  • Minutes
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
      • no volunteer yet (Test of hveto and FScan).
        • Coding kagradata.py for the new version of Bruco is ongoing.
        • We need to decide KAGRA common rule about NDS2 and DATAFIND for fixing codes.
      • NAPT test was started for the purpose of saving number of IP address in DGS network.
        • DET gateway (copy of k1gate is enough for the test) will be connected to DGS network.
          • Other nodes will be under DET gateway.
        • It may be better to construct the gateway as Deb10. (Copy of k1gate is Rocky8)
          • TY have no experience of constructing NAPT on Debian.
        • NDS(k1nds[012]), NFS(k1nfs0) services must be available from under DET gateway.
        • How should we do k1det2 which is used for Bruco running from CDS workstation.
    • Exchange of opinions between DET members(YamaT, Sawada(OPS), Yuzurihara) and DMG members(Kanda, Oohara)
      • related to conda environment and DQR tasks
      • in Kashiwa server and Kamioka computers, we should have common rule fo NDS2 and DATAFIND, which YamaT already mentioned.
    • DQR update (Yuzurihara)
      • the application to connect between igwn-alert and Task Manager was developped by Joe
      • DQRAlert git repo

      • I tried to run this tool in Kamioka computer and it is working well.
      • need to prepare the document of how to use this tool on wiki page.
      • DQR workflow

    • Update contents of summary page?
      • no update
    • Combine DET computer resources into one DET cluster at Kamioka site
      • goal : prepare job management server and can submit job to k1det[012]
      • timeline : before O4
      • there might be conflict between this cluster and NAPT test. Oshino and YamaT will discuss.
    • Follow-up report of remote contribution from Aoyama Gakuin univ.
      • (Yokozawa, Oshino, Yuzurihara) we started the discussion of task list and how to contribute from remote site.


20220404 (Mon.)

  • Agenda
  • Minutes
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
      • Installation of IGWN was done on k1detfs.
        • Too slow HDD response? (~150KB/s via NFS)
      • Works well
        • SummaryPages as GPS-select mode

          • ini-file grammar is slightly changed from the old version.
        • Omicron
          • No special hack
        • Omega-scan
          • needs temporal code hack
        • Bruco
          • needs preparation for reading kagra data (kagradata.py)
          • No --include option in original one.

      • Not yet
        • SummaryPages as Daily mode (This will be done by Kamioka people)

        • hveto
        • FScan
          • Not included in IGWN environment?
      • Problem
        • No global NDS2, DataFind servers or equivalent way.

          • SSH port forwarding is not enough because port number is different depending on person.
          • So I cannot do the code hack on IGWN software in the system region.
        • KAGRA env may not be able to be included in IGWN until O4.
          • If so, we shouldn't use IGWN in officially for O4.
      • (Lupin) igwn-py38? or py39?
      • YamaT asked status of FScan
      • In future, we need to prepare similar environment on Kashiwa cluster. The environment is not completely same as Kamioka computers.
      • We need volunteers from remote site, to test hveto and FScan. Please let us (Yuzuriahra or YamaT) know.
    • DQR update (Yuzurihara)
      • Operation test for new version of Task Manager is on-going on k1det1.
      • I found that code of stationary task uses datafind to read gwf data, which we don't have.

      • I need to consider how to read data for DQR tasks.
        • (Darkhan) Is there any way to get the latest list of channels?
        • (Yuzurihara) If you can specify the name of frame data, there is a function on gwpy.
    • Update of summary page (Oshino)
      • no update
    • Trouble of Omicron trigger generation (Oshino)
      • klog#20328

      • replaced the local SSD on k1sum1. The Omicron triggers are stored in different disk.
    • 120Hz glitches investigation during O3GK
      • no update
      • Kihyun can't join for a while. This project will be postponed.
    • Report of new tool development (Darkhan)
      • showed demonstration
      • this tool can take a ratio between channels and will be able to apply time-domain filter (band pass/highpass/lowpass) in future.


20220328 (Mon.)

  • Minutes
    • Unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
      • YamaT constructed the test environment in local computer
      • Although YamaT is copying the environment to DetChar computers, it is very slow. (speed ~ 250KB/s)

      • After copying, YamaT will work on modification of codes to fit KAGRA data, such as nds2.py
      • For testing the tools (Omicron, Hveto...), we need volunteers, especially remote site!
    • Activity report by students from Aoyama Gakuin univ.
      • five students and two staff members from Aoyama Gakuin univ. stayed Kamioka site during last three weeks.
      • They helped commissioning work both in tunnel klog#20124 klog#20155 and in control room.

      • several code developments to understand glitch cause have been done. klog#20026 klog#20027

      • code development to identify mirror center of ITMX have been done by using image analysis. slide(Japanese) klog#20036 klog20198 klog#20203

    • DQR update
      • Joe updated Task Manager. Yuzurihara will install new version and test it.
    • Update of summary page
      • no update
    • 120Hz glitches investigation during O3GK
      • no update


20220307 (Mon.)

  • Agenda
    • announcement
      • LVK meeting March 2022 wiki web

        • registration is available
    • 120Hz glitches investigation during O3GK
    • unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
    • DQ flags for O4
    • DQR update
    • glitch investigation related to IMMT1 oplev
  • Minutes
    • 120Hz glitches investigation during O3GK
      • no update
    • unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012]
      • YamaT is working on this project at test-server.
      • Test of new conda environment will start from next week (after JPS meeting)
    • DQ flags for O4
      • no update
    • DQR update
      • Joe is developing the code to connect between igwn-alert and TaskManager. It will be available soon.

      • Schedule for review
        • Review of Task Manager will be done before review of each task.
        • High priority task needs to complete before Aug. 2022
        • Low priority task needs to complete before Nov. 2022
    • glitch investigation related to IMMT1 oplev
      • From March 8, students from Aoyama Gakuin univ. stayed at Kamioka
      • They worked on the investigation of glitch. klog#20026klog#20027

      • They checked IMMT1 QPD signals and PRM suspension signals at the time of glitch.
    • NDS2 tool development (Darkhan)
      • no major update.
    • GPS accuracy monitor (Oshino)
      • is available on summary page

      • Current difference is acceptable and reasonable.
    • No meeting on March 21 due to Japanese holiday. Next meeting is planed on March 28.


20220307 (Mon.)

  • Agenda
    • announcement
      • RRT plan during O4 slide

      • LVK meeting March 2022 wiki web

        • registration is available
    • 120Hz glitches investigation during O3GK
    • unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
    • DQ flags for O4
    • DQR update
  • Minutes (Yuzurihara)
    • 120Hz glitches investigation during O3GK
      • no update
    • unify conda environment in Kamioka detchar computers, k1sum[01] and k1det[012] (YamaT)
      • There are many computers/workstations in Kamioka site or Kamioka control room.
      • Workstations (k1ctr*) use common conda environment by mounting the file server.
      • In DetChar computers k1{sum,det}[01], conda environment should be unified all DetChar resources, similar to workstations.

      • To prevent the trouble that DetChar experts might break the environment, the conda environments will be set as read-only permission.

      • Installation will be done by Kamioka members. After that, we need volunteers to test the DetChar tools on new conda environment.

      • what is the time line?
        • Installation will finished before the end of March. From April, the test will start. Volunteers are helpful.
    • DQ flags for O4
    • DQR update
      • no update
    • Commissioning of GreenX
      • In the last weekend, the commissioner tried continuous GreenX. During that trials, they found many short term lock loss (~10 ms). 10 ms is too short to follow the suspension motion, so it is likely that there are some causes of the lock loss except for the suspension motion.
      • The commissioner needs helps DetChar members to identify the cause or give a hint of the cause.

      • For details, see klog#19963 klog#19983

      • main channel K1:TMS-X_GR_PDA1_OUT_DQ
      • time : 2022 Mar 06 23:37:50 UTC = 2022 Mar 07 8:37:50 JST = GPS time 1330645088


20220228 (Mon.)

  • Agenda
    • 120Hz glitches
    • DQ flags for O4
    • progress of DQR
    • lock loss study of GreenX
  • Minutes (Yuzurihara)
    • accouncement
      • LVK meeting March 2022 wiki web

        • registration is available
        • Wed, 17 March 2021:
          • Plenary Session #1 (09:00-10:30 US/CDT) (=3/16 23:00 JST)
          • Paper Presentation Session #1
          • Plenary Session #2 (16:00-17:30 US/CDT) (=3/17 6:00 JST)
        • Thu, 18 March 2021:
          • Plenary Session #3 (09:00-10:30 US/CDT) (=3/17 23:00 JST)
          • Paper Presentation Session #2
          • Plenary Session #4 (16:00-17:30 US/CDT) (=3/18 6:00 JST)
      • Pastavi server will be unavailable tonight
    • 120Hz glitches
      • no update
    • DQ flags for O4
      • no update
    • progress of DQR
      • igwn-alert is running more than 9days and receiving the MDC alert
      • next step is to connect the MDC alert with the launch TaskManager.

      • remained task is to develop InspiralRange issue

    • lock loss study of GreenX
      • klog#19906

      • From the Hveto result, the channel (K1:IMC-SERVO_MIXER_DAQ_OUT_DQ) was the most coincident channel with the lock loss of GreenX.
    • unify the detchar computing environment (YamaT)
      • scattered codes and applications (Omicron, summary page, ) over Kamioka computers are troubling.
      • we plan to unify the environment by using igwn conda
      • detail will be reported in next meeting
      • (Darkhan) conda environment on k1ctr*. someone accidentally update someone's conda environment. administrator should prepare the conda environment?
      • (YamaT) k1ctr* share the environment. this activity is not related to k1ctr* but k1sum[01], k1det[012]. we should separate the user environment and the environment for the DET tools
      • (Darkhan) should avoid accidental mistake.


20220221 (Mon.)

  • Agenda
    • 120Hz glitches
    • DQ flags for O4
    • progress of DQR
  • Minutes
    • 120Hz glitches
      • No updates
    • DQ flags for O4
      • No updates
    • progress of DQR
    • Proposal new tool to see past data by NDS (Darkhan)


20220207 (Mon.)

  • Agenda
  • Minutes
    • 120Hz glitches
      • No updates
    • DQ flags for O4
      • slide

      • (Yuzurihara) read BLRMS data and made the several plots with 1% and 99% percentile.
      • When KAGRA will be locked as observation mode?
        • hopefully after july, there will be lock trial for two monthes(?)
      • When you set the 1% criteria, always you throw away the 1% data?
        • We might need to consider the better procedure to care that point.
    • progress of DQR


20220131 (Mon.)

  • Agenda
    • 120Hz glitches
    • Report from DQR hackathon
    • DQ flags for O4
    • Master thesis (Morisue-san)


20220117 (Mon.)

  • Agenda
    • 120Hz glitches
    • ITMX glitches
    • DQR progress
    • DQ flags for O4
  • Minutes
    • 120Hz glitches
      • No updates
      • Next step is coincidence search with signals around ETMY including local control sensors.
    • ITMX glitches
      • klog#19212

      • K1:VIS-ITMX_F3_LVDTINF_GAS_{IN1,OUT} have glitches.
      • It seems to occur around AA chassis. (AA and cable replacement didn't help to improve situation).
      • We will try to find glitches on other channels on the same ADC board.
      • This channel should be added to Omicron search on SummaryPages.

    • DQR progress
    • DQ flags for O4
      • No updates
    • O3GK paper
      • Threshold used for computing a glitch rate was changed as SNR=6.5.
      • It's a same criterion with LIGO, and Virgo.
      • Both GEO and KAGRA's results are now computed and draft was also updated.


Past meeting

KAGRA/Subgroups/DET/Meeting (last edited 2022-12-06 11:14:09 by HirotakaYuzurihara)