• KAGRA
• Subgroups
• PEM
• Meeting
• 250530
• Agenda

Weekly PEM meeting

• 2025/05/30(Fri) 17:00-
• Regular meeting

• Zoom2 : https://zoom.us/j/6676627462

General announcement

• O4c url

  • Now commissioning break, Re-start 4th June end 7th Oct. 18th Nov.

    • Discussion about the engineering run
  • KAGRA
    • Start the observation run at 5th 00:00 a.m. (JST)
      • Before starting
        • Setting the observation flag (SDF setting, guardian, etc.)
        • Calibration
      • 5th, 6th night, 7th, 8th, 9th morning
      • From 9th morning., we will re-start the commissioning
        • Daytime commissioning, Night time silent run
        • It will continue 23rd
      • After then, basically observation run.
• Bi-weeklky VK PEM meeting
  • To discuss the analysis during their measurements
  • 11th June (Wed) 17:00 -
  • ET cryo meeting 24th June

Meeting and Conference issue

• 5/26~27 : KIW12 @ 上海 url

  • Registration 15th May.
  • Yokozawa will join the meeting

• 5/26~30: ET symposium @ ボローニャ url

  • 締切：3/31

• Other meetings url

If you have some presentations about PEM related, please contact to me.

Business travel

• To Kamioka
• From Kamioka
  • Yokozawa
  • Washimi (Itary, 6/7 - 7/13)
    • 6/9 - 6/11 : Virgo
    • 6/3 : Roma
    • 6/16 - 7/9 ET SPB work at Sardegna
    • 7/11 : Padova

  • Washimi (Yamaguchi -> Hiroshima -> Kohch -> Okayama, 9/8-9/30?)

Jurnal paper issue

Details are here!

• Non-linear ICA paper
  • The playground approved, preparation toward the submit
• Schumann Resonance paper
  • Long term observation, seasonal variance
  • Amplified inside the mine
  • Others
• O4(a+c) PEM paper
  • Start to investigate the topics
• Microseism with machine learning
• 1 Hz seismic motion paper
  • Start the investigation

General issue

• Commissioning
  • PRFPMI
    • Latest sensitivity 7.1 Mpc
      • Alignment tweaking
      • Height adjustment, BPC for IX and IY
      • Noise budget
      • Calibration

Progress report

• Nishizawa, Taruya, Himemoto
  • Water Newtonian noise
  • Schumann Resonance
• Kaku
  • Magnetic field analysis
• Murofushi
  • Earthquake and GIF analysis
• Obara
  • Earthquake and suspension
• Ohashi
  • Microseismic noise with machine learning
• Kume, Ueno
  • Noise subtraction
• Yokozawa
  • Noise investigation
• Washimi
  • PEM injection

Place for memo

• Line noise list in O3a public data

• Summary page for KAGRA O3 vector dark matter