[REPORT]

1. Budget

1. Total amount executed in FY2019 : https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2818
2. Tentative list of FY2020 budget
   • further cost-cut in your sub-system is welcome.
   • amount recovery, if very necessary, is to be noticed to SEO. (https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11539)

2. Schedule of After Observation

• CAL tasks have been done until 27th April.
• Suspension Mode from April 27th to May 31st
  • KAGRA was in  "Suspended Mode".
  • UT decided to keep level 3 until May 31st. While faculty members in the Kamioka area will discuss what should we do.
  • In this mode, we keep IFO just in "DOWN state" in the LSC_GUARDIAN to be able to quickly recover the IFO to PRFPMI. Most important thing is to keep arm GR resonances in both arms by daily shift members.
  • Because of so many earthquakes, especially around Kamikochi area, we decided to concentrate in keeping IFO healthy and safe. So almost no remote works are prohibitted.
  • Some members are now making a program to change Type-A state automatically to damping mode according to the amount of shaking due to earthquakes.
  • The shift schedule is in here. 

3. JRPC related

• No JRPC meeting for the last rwo weeks.

4. Meetings (KSC)

• The KAGRA telecon, May 27 (Wed) & 28 (Thur), 2020.
• The 25th KAGRA Face-to-Face meetingat U. Toyama, August 20-22, 2020.
• The LVK collaboration meeting at Cardiff, UK, September 14-17, 2020 (JPS meeting has same schedule)
• The 26th KAGRA Face-to-Face meetingat NCU, Taoyuan City, Taiwan, Dec. 17-18, 2020.
• The 7th KAGRA International Workshop in NCU, Taoyuan City, Taiwan, Dec. 18-20, 2020
• The LVK collaboration meeting,Lake Geneva, Wisconsin, USA, March 22-26 ??, 2021
• The 8th KAGRA International Workshop, in Daejeon, Korea, sometime, 2021
• The 9th KAGRA International Workshop, in Beijing, China, sometime, 2021
• Other related GW meetings are listed in http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/DAWG/conferences

[Discussions]

1. Postponed tasks scheduled in April / May

• Claen booth cleaning, etc for preparation for O4 updrade managed by Kimura-san.
• Clanes, pulling cars ragular check by Hayakawa-kun.
• Post-observation tasks.

2.  Remote work Again ?

•  Remote work will be allowed, judging from much less earthquakes around Kamiokochi.
• Remote work scheduling will be held on Tuesday by Miyakawa-kun.

3. Post Observation task Plan and scheduling (Miyakawa) 

• Proposed plans. 
• We should prioratize them and make a schedule.
• This plan might be affected by LV decision about O3c

4. Paper Management (KSC: Shinkai, Miyoki, Akutsu)

• A plan is summarized in here and updated today. The author and/or manager were almost fixed. 

5. Schedule for O4 and any catch up plan ?

• https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9209
• More several plans are proposed.
  • Offline known line noise subtraction. (PEM / DAS / DGS / DMG / CAL)
  • Scattered light around IOO (AOS)
    • IMMT2 suspension frame modification to keep a clear beam path of transmitting IR and oplev (AOS, VIS). No document about layout. 
  • BS, PRs, and ETMXY surface monitors (VAC, AOS)
  • Electrical Ground (FCL / PEM).
  • TMS P/Y coupling (AOS or CRY). Firstky, we should identify its reason.
  • Highpower laser pre-preparation (IOO + Haino-san). 
  • Just after post-observation tasks, DGS update will be done. (DGS)

[ Past Chief Meeting Page ] will be closed because of very poor security and no more maintenacne. Other machine will be discussed as servers.