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    * Pastavi server will be unavailable tonight
      * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19913|klog#19913]]

Meetings

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


Agenda & Minutes

20220228 (Mon.)

  • Agenda
    • 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
    • DQ flags for O4
    • progress of DQR
    • lock loss study of GreenX
  • Minutes
    • 120Hz glitches
    • 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.


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 2024-03-27 11:26:27 by TakahiroYamamoto)