Weekly PEM meeting

• 2020/04/17(Fri) 14:00-(JST)
• Regular meeting (Japanese)

• Web meeting with Zoom2 (Zoom2)

Agenda

General issue

• Interferometer status
  • Two weeks observation was performed
    • Very limited onsite people operated the interferometer
    • End 4/20 9:00 a.m(JST)
    • After that, calibration group may work
• Tasks for post-commissioning

  • post commissioning

    • Scattered light (One of the hammering test)
    • OMC chamber vibration RMS
    • PEM injection
    • Line noise investigation by PEM
• PEM papers
  • Portable PEMs
  • KAGRA summary paper (Preparation of PEMs is main target)
  • O3 PEM paper
    • Acoustic injection
    • Noise budget (?)
• Task management 2020
  • Join the PEM meeting
  • Analysis related PEM (Need the communication with Yokozawa or Washimi)
  • PEM installation toward O4

    • cabling (github204), ondotori (github205), water fluid (github207)

    • read out of the lightning sensot (github182) : Shingakujutsu-kobo is acccepted

  • Preparation for PEM injection
  • If you will have efforts for PEM, please contact to Yokozawa or Washimi
  • Preparation, development, update of new monitors will be added as PEM effort
    • Example : update glitch plot, daily summary page.

    • But "just use them" may not include as PEM effort -> Shift or commissioning

Each progress

• Discuss about the general issue (Yokozawa)
• GND noise preparation after O3 post commissioning (Yokozawa)

• Line noise subtruction (Washimi) : 60Hz power, 180Hz violin mode

• Earthquake flag : http://klog.icrr.u-tokyo.ac.jp/osl/?r=13813

• Glitch plot report (Kozakai)
• Yuzu summary page report (Yuzurihara)
• Update of the pastavi (Yuzurihara)