== Weekly PEM meeting ==
 * 2023/10/27(Fri) 17:00-
 * Regular meeting
 * Zoom2 : https://zoom.us/j/6676627462

==== General announcement ====

 * O4b
  * Break : mid-January - mid-March, 2024
  * Virgo : will join in March
  * KAGRA : Three month observation around here

 * O4a noise budget paper
  * If you have a plan to write the paper using O4a data and PEM, please let me know.

 * KAGRA visiting plan
  * If you want to visit Kamioka, please contact Yokozawa

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

  * ET SCB/SPB/ANM workshop @ Nikhef, December 6-7
   * Washimi will attend in person
   * satellite meeting before/after the workshop? 

  * Gravitational Wave Probes of Physics Beyond Standard Model
   * Osaka Metropolitan University
   * 6-9 November 2023 [[https://indico.nitep.osaka-cu.ac.jp/event/130/|url]]
   * Registration deadline 9th Oct.

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

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

==== Business travel (except for conferences) ====

 * To Kamioka
  * Miyamoto (10/4 - 11/3)
 * From Kamioka
  * Washimi (10/27-28 Mitaka)
  * Washimi (10/30 Kanazawa)
  * Washimi (11/2-4 Kashiwa)
  * Washimi (11/4-5 Waseda)
  * Washimi (11/6-9? OMU)  
  * Washimi (12/4-8? Amsteldam)

==== General issue ====

  * Cooling down
   * EX : Radiation shield cooling down : 140 K

   * EY : Started the maintenance
    * Last weekend, need maintenance

   * IX, IY ongoing : about 85-87 K in IM (2023/10/27)
    * Temperature change [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/trendMon/finesse.html|url]]
    * After starting the cooling down after measuring the Q-value of sapphire fiber

  * Interferometer operation
   * PRFPMI lock trial : Ongoing
   * Alignment sensing and control
   * Resonant frequency damping
   * MN oplev control to reduce the sensor noise
   * OMC lock stable 

  * Preparation towards opening the OMC chamber
   * Started pumping down
   * Some leak at OMC area

  * New IP control
   * Ongoing
  
  * Strategy for noise hunting
   * [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=26848|klog26848]]

 * 出張PEM injection ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14016|planning form]])
  * 

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

  * Micro seismic analysis (Hoshino)
   * Submited to  Physica Scripta
   * [[https://ja.overleaf.com/project/627270d6b67cab411d1c7d32|Overleaf]]
   * [[http://arxiv.org/abs/2306.12437]]

  * ICRC Proceedings

  * Acoustic reverberation time paper (Washimi+, Sato?) 
    * Suspend 
    * Re-measurement before O4?

  * TCam paper 
    * Writing ongoing

==== Preparation for O4b ====

 * Schumann resonance measurement
  * Setting the magnetometer : Done
  * Prepare for winter season : Ongoing
  * Data taking : Started

 * Evaluation of newtonian noise
  * Anoop and Washimi

 * PEM installation
  * Start planning

 * Investigation of the PEM injection
  * Magnetic injection 

 * Voltmeter preparation
  * AC power monitor installation
  * DC power monitor installation

==== Progress report ====

 * Yuzurihara
  * Pastavi
  * Data Quality Report [[https://dcc.ligo.org/G2201168|slide]]
  * Data quality evaluation

 * Hoshino
  * Seismic motion analysis

 *Sato
  * Sound source analysis

 * Miyamoto
  * Weather analysis

 * Takatani
  * Noise subtraction with machine learning

 * Kume
  * PR3 line injection [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=25670|klog25670]]
  * Noise subtraction

 * Nishizawa
  * Water newtonian noise
  * Magnetic field analysis

 * Washimi 
  * Magnetic field analysis

 * Yokozawa 
  * PEM injection OMC area

==== 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]]