== Weekly PEM meeting ==
 * 2025/09/12(Fri) 17:00-
 * Regular meeting
 * Zoom2 : https://zoom.us/j/6676627462

==== General announcement ====

 * No PEM meeting 9/19, 9/26

 * JPS meeting registration
  * https://www.jps.or.jp/activities/meetings/annual/annual-index.php
  * Meeting : 9/16 - 19
  * Need the hotel reservation as soon as possible
  * If you plan to have a presentation with PEM issue in next JPS meeting, please contact to Yokozawa and Washimi-san
  * Do we need the satellite meeting?
  * Talk plan  
   * 横澤：重力波検出器KAGRAにおけるメソスケール気象現象の影響に関する研究
   * 小原：重力波望遠鏡KAGRAにおけるO4c観測中の地震の影響
   * 鷲見：神岡におけるシューマン共振磁場観測：長期観測体制の確立
   * 安部：神岡におけるシューマン共振磁場観測:シューマン共振パラメータの日周変動と季節変動

 * O4c [[https://observing.docs.ligo.org/plan/|url]]
  * Now commissioning break, Re-start --(4th June)-- 11th June end --(7th Oct.)-- 18th Nov.

==== Meeting and Conference issue ====

  * JPS at Hiroshima
   * 16th - 19th Sep.

  * Slow to fast earthquake at Kochi  [[https://slow-to-fast-eq.org/events/2275|url]]
   * 24th - 26th Sep.

  * 2025 ENIGMA Collaboration Workshop on Astrophysics and Geophysics
   * [[https://indico.kgwg.org/event/147/|url]]
   * 9th Nov. - 13th Nov.
   * Yokozawa and Washimi-san will join

  * Other meetings [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/DAWG/conferences|url]]

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

==== Business travel ====

 * To Kamioka
  * 

 * From Kamioka
  * Yokozawa (Hongo, 9/4-9/8)
  * Yokozawa (Hiroshima, Kochi, 9/15 - 29)
  * Yokozawa (Hongo, someday in October?)
  * Yokozawa (South Korea, 11/8-11/14)
  * Washimi (Yamaguchi -> Hiroshima -> Kohch -> Okayama, 9/8-9/30?)

==== Jurnal paper issue ====
[[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Reports/JurnalPaperIssue|Details are here!]]

 * Non-linear ICA paper
  * SEO agreed
  * arXiv submission 
  * Submission to PTEP

 * 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
  * Sunil-san's result?

==== General issue ====

 * Commissioning
  * (4 hours Tue and Thu)
  * Main fiber laser broken
   * Now, we replaced the main laser to the NeoLASE laser
   * Long term stability (Done)
  * Warm up the mirrors
   * Check the Finesse with increasing the mirror temperature
   * No significant change 
   * Since the actuation efficiency changed, we started cooling down again (just stop the heating)

==== Progress report ====
 
 * Nishizawa, Taruya, Himemoto
  * Water Newtonian noise
  * Schumann Resonance
 
 * Kaku
  * Magnetic field analysis

 * Abe
  * Parameter estimation of the schumann resonance

 * Murofushi
  * Earthquake and GIF analysis

 * Obara
  * Earthquake and suspension

 * Ohashi
  * Microseismic noise with machine learning

 * Kume, Ueno
  * Noise subtraction

 * Yokozawa 
  * Lightening

 * Washimi 
  * Wind study

==== Place for memo ====
 * [[https://www.gw-openscience.org/O3/o3aspeclines/|Line noise list in O3a public data]]
 * [[https://pubplan.ligo.org/CW/KAGRA_VectorDM.html|Summary page for KAGRA O3 vector dark matter]]