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 * 2020/03/06(Fri) 14:00-(JST)  * 2020/03/13(Fri) 16:00-(JST)
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  * Observation run started without O3 joining
  * Maximum 500kpc BNS detection range
  * Lock duration is 1h -4h
   * Alignment dependence
  * Duty cycle ~65%
   * We need ~1h for initial alignment
  * If microseismic motion is large, we could not lock the interferometer
  * 3/10 - commissioning break

 * Commissioning break (2020/03/10 9 am -03/24 9 am)
  * After the commissioning meeting, I and Washimi-san make the schedule.
  * Two weeks observation was finished
   * Maximum 594kpc BNS detection range
   * Maximum Lock duration is over 10h
  * 3/10 - commissioning break started
   * Noise projection
   * Hammering test (Sat. and Sun. morning time)
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  * PEM injection
   * Acoustic injection
    * Done : PSL room, PR booth, BS booth, (SR booth)
    * ToDo : IXC booth, IYC booth, EYC booth, TMSY booth
   * Shaker injection
    * ToDo : OMC leg, ISS, IMC table, REFL tabel, ...
  * Hammering test
   * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Meeting/200121/Minute|20/01/21 Minute]]
   * Hammering tests to the OMC, SRs, BS and PR2 were done [http://klog.icrr.u-tokyo.ac.jp/osl/?r=13138|klog13138]
    * There is large excitation when we touched the legs of the OMC chamber
    * --(But we concluded that vibration of the logs of the OMC chamber were not the dominant noise source in the current sensitivity)--
    * Next target of investigation is the duct between PR2 and BS
     * Candidate of the 60-90Hz noise
  * Discussion about the PEM flags
   * This may not be used during O3 run, but it is good practice toward the O4 run
   * Help the RRT(Rapid Response Team, quick discussion for the event submitted to the GraceCB)
   * Seismic motion flag
  * Evaluate the effect of the FFUs and vacuum pumps by turning on during interferometer lock
   * If the excitation detected, we have to consider about the FFUs which are working.
  * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/MAR2020|task list]]
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 * Conference
  * F2F (2020/4/17-20 @ Kashiwa) [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/LCGT/Meeting/f2f/2020Apr|wiki]] ->canceled
 
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Weekly PEM meeting

  • 2020/03/13(Fri) 16:00-(JST)
  • Regular meeting (Japanese)
  • Web meeting with Zoom2 (Zoom2)

Agenda

General issue

  • Interferometer status
    • Two weeks observation was finished
      • Maximum 594kpc BNS detection range
      • Maximum Lock duration is over 10h
    • 3/10 - commissioning break started
      • Noise projection
      • Hammering test (Sat. and Sun. morning time)
  • PEM tasks in March

Each progress

  • Discussion about the list of the general issue (Yokozawa)
  • Bruco analysis (Yokozawa)
  • PEM coherence search to the longer locked data (Yokozawa)
  • PEM injection result (Washimi) JGW-G2011550

  • Plan of the lock loss study (Fujikawa)

KAGRA/Subgroups/PEM/Meeting/200313/Agenda (last edited 2020-03-13 03:22:02 by TakaakiYokozawa)