== Weekly PEM meeting ==
 * 2021/01/15(Fri) 17:30-
 * Regular meeting
 * Zoom2 : https://zoom.us/j/6676627462

=== Agenda ===

==== Conference issue ====
  
 * JPS meeting [[https://www.jps.or.jp/activities/meetings/annual/annual-index.php|URL]]
  * オフライン解析によるKAGRAデータの雑音除去(Kume)

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

==== General issue ====

 * Interferometer schedule [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12041|JGW12041]]
  * VIS upgrade
  * IMM upgrade
  * IYC experience
  * Temperature control
  * AC noise at IXV

 * Contribution to PEM for joining the author list [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12435|Working list]]
  * KAGRA Environmental study (Including (future) newtonian noise measurement)
  * Noise evaluation using PEMs (Including lock loss study)
  * Setting monitors (Cabling, making monitor, ondotory maintenance)
  * Others

 * Evaluation meeting [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/ChiefMeeting/2021-01-12%20Evaluation%20Meeting|URL]]

==== Discussion item ====

 * Start the investigation for measurement of the newtonian noise
  * NN meeting ([[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Meeting/201222|URL]])
  * Seismic NN
   * Fractal analysis (Submitted to CPC)
   * Francesca analysis (Seismic(Completed), Atmospheric(data releasing))
   * Many seismometers (Call analysis people)
   * Accelerometers for wall (Call analysis people)
  * Water fluid NN
   * Fluid meter (We will install in this physical year )
   * Simulation 
  * Atomospheric NN
   * Relative temperature monitor
   * Infrasound
  * Gravity monitor
   * TOBA
   * Superconducting Gravimeter
  
  
==== Jurnal paper issue ====
[[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Reports/JurnalPaperIssue|Details are here!]]
  * PTEP (2) : noise budget(K.Yamamoto) [[https://docs.google.com/spreadsheets/d/1Lz5RNxdjOhdZp6CBef-USUUPmyNTrhww9a7u39W7PSI/edit?usp=sharing|Check list]], [[https://gokagra.slack.com/archives/C015M111B5G|slack]] '''<<Analysis is ongoing>>'''
     * [[https://gokagra.slack.com/files/U0157NBL87M/F01HADNE4A3/nb_20201229.png|Latest plot (12/29)]]
     * Remaining works:
        * Laser frequency noise (dominant at >2kHz?)
        * PCal noise (~100Hz?)
        * BS ctrl noise (~100Hz?)
  * PTEP (3) : CAL, DET, PEM, GIF (Yokozawa) '''<<Referee comment>>''' [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11664|JGW-P2011664]]
  * Acoustic injection paper (Washimi) '''<<Submitted to CQG>>''' [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12122|JGW-P2012122]]
  * Lightening paper (Washimi) '''<<Submitted to CPC>>''' [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12426|JGW-P2112426]]
  * Fractal paper (with Virgo) '''<<Submitted to CPC>>''' [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12438|JGW-P2112438]]
  * Seismic NN paper (with Virgo) '''<<DRAFT CIRCULATION>>'''
  * Reverberation time paper (Washimi+) '''<<Start writing>>'''
  * ICA for E-run/O3GK (Kume, Yokoyama) '''<<Analysis ON GOING>>'''
  * Portable PEMs (Yokozawa+) '''<<Start writing>>'''


==== Preparation for O4 ====
 

  * PEM table
   * k1ctr plan
    * Cabling, DELL PC update
  * Cabling issue
   * Cleaning the center area
   * PEM cabling plan
    * BS-IYC cabling
   * New cable rack
    * cabling, moving from IX0
  * Noise mitigation / Environment stability
   * GND issue 
    * IXV 40kHz glitch, moving mass? 
   * Temperature control
    * IYC dry air, temperature is good now
  * PEM sensors
   * Re-install the ACCs, MICs, MAGs until commissioning start
   * water fluid monitor
   * read out of the lightning sensor 
   * Infrasound monitor @ Atotsu, Mozumi, tunnel (+ Toyama?) 
   * Magnetometers for Schumann resonance [[https://www.metronix.de/metronixweb/fileadmin/user_upload/Dokumente/Geophysiks/Induction%20Coil%20MFS-06e/FlyerMFS-06e_jap_v35.pdf|MFS-06e]]
  * PEM injection
   * Acoustic injection at X/Y-end
   * Magnetic injection   


 * After O4 
   * RF monitor
   * Tiltmeter
   * RI detector
   * Newtonian noise


==== Progress report ====
 * Yokozawa
  * Rack ground GND 

 * Washimi
  * Lightening paper
  * Thermography [[https://photos.app.goo.gl/2o2GRos5ZAxStQQR9|photo]]

 * Kume
   * ICA analysis related with PEM


==== Place for memo ====