Differences between revisions 941 and 1630 (spanning 689 versions)

KAGRA Commissioning Wiki

Contents

KAGRA Commissioning Wiki

KAGRA Comissioning task planner

Meeting archive

Items

Mine work
- Beam jitter noise budget
- ASC
- Laser power increase
- REFL table power budget
- OMC
Remote work
- Feedforward MICH
- Offload path
- ASC
- Calibration check
- Lock loss investigation http://10.68.10.87/~controls/washimi/LockLossStudy/
See the commissioning task planner:
- https://teamup.com/ksc4nkchhmh4stoekm

Meetings

Daily Meeting
- Zoom 1 URL: https://zoom.us/j/7631499341
- Time: 4PM, everyday
- Location: KAGRA control room
Morning Meeting
- Zoom 1 URL: https://zoom.us/j/7631499341
- Time: 9AM, everyday
- Location: KAGRA control room
Weekly Meetings
- Zoom 2 URL: https://zoom.us/j/6676627462
- Time: 11AM, every Tuesday
- Location: 2F large meeting room
Other Extra Meetings

Tasks and working people assignment

Schedule

Cryo cooler check on 8/5 (Kimura)
ITMX cooler stop on 8/6 (CRY)
Y arm will be available from 8/8~
ETMX warm up 8/9 (CRY)
ETYY cooling (CRY)

Standing issues

VIS Task List

PEM - measured data sharing (Washimi, Yokozawa)
How to control the PSL temperature when people enters the room (Miyoki)
DRMI lock stability
- 3f transition
- Search for better Gouy phase in PRC
PRFRMI: with stable 3f signals and ALS extra range, FPPRMI may fix the glitches?
VIS related
- Implement BF stage control on ALIGNED state on type-A guardian (Kokeyama)
- United Guardian for all 4 suspensions (Okutomi)
- Damping
- Type A: Feed forward technic to suppress extra motion (Nakano)
- Automation script for damping for calm down phase
- PR2 & PRM oplev wind shield, PR3 LS oplev centering
- Wind shield for PR2 and PRM (Enomoto)
For ASC things
- Fix clipping at IFI with IFO (Kokeyama)
- Measure TF of VIS as ASC actuator (Okutomi)
- One arm WFS test
ETMY strong damping (Lucia, Ushiba)
DAC non-linearity (http://klog.icrr.u-tokyo.ac.jp/osl/?r=10699)
QPD diagonalization ETMX and ETMY, for remote work (Akutsu)
Establishing investigation method for diagonalization using ETMY only (all VIS power)
Fix oplev noise for ITMY
Fix oplev noise for ITMX
Fix oplev gain for ETMY (Akutsu)
Covering wind shield for oplevs of iMC (Akutsu, or somebody)
Investigation for noise of length oplev noise for ITMs (VIS + CRY)
PD dark noise investigation (Kozakai)
Sensor correction for Type B by large motion like typhoon (Fabian)
Check for all PD or other circuits for grounding on table (Ushiba)
Gate valve test (Tomaru)
Vacuum pump noise measurement (Yokozawa)
Temperature stabilization due to fan off (Miyoki)

KAGRA/Commissioning/DailyWork << < 2024 / 10 > >>
Mon	Tue	Wed	Thu	Fri	Sat	Sun
	1	2	3	4	5	6
7	8	9	10	11	12	13
14	15	16	17	18	19	20
21	22	23	24	25	26	27
28	29	30	31

Weekly meeting

No.	Date	Agenda	Schedule	Minute	Files

93	2020/2/18	Agenda		Minute	File
92	2020/2/4	Agenda		Minute	File
91	2020/1/28	Agenda		Minute	File
90	2020/1/14	Agenda		Minute	File
89	2020/1/7	Agenda	See task planner page	Minute
88	2019/12/17	Agenda	See task planner page	Minute
87	2019/12/10	Agenda	See task planner page	Minute
86	2019/12/3	Agenda	See task planner page	Minute	JGW-G1911040
85	2019/11/26	Agenda	See task planner page	Minute	JGW-G1911012 JGW-G1911010
84	2019/11/19	Agenda	See agenda page	Minute	File
83	2019/11/12	Agenda	See agenda page	Minute
82	2019/10/15	Agenda	See agenda page	Minute
81	2019/10/8	Agenda	See agenda page	Minute
80	2019/10/1	Agenda	See agenda page	Minute	file
79	2019/9/3	Agenda	See agenda page	Minute
78	2019/8/20	Agenda	See agenda page	Minute	File
77	2019/8/6	Agenda	See agenda page	Minute
76	2019/7/23	Agenda	See agenda page	Minute
75	2019/7/16	Agenda	See agenda page	Minute
74	2019/7/2	Agenda	See agenda page	Minute
73	2019/6/25	Agenda	See agenda page	Minute
72	2019/5/28	Agenda	See agenda page	Minute
71	2019/5/21	Agenda	See agenda page	Minute
70	2019/5/14	Agenda	See agenda page	Minute
69	2019/5/7	Agenda	See agenda page	Minute
68	2019/4/23	Agenda	See agenda page	Minute
67	2019/4/16	Agenda	See agenda page	Minute
66	2019/4/9	Agenda	See agenda page	Minute
65-1	2019/4/2	Integrated Type-A meeting
65	2019/4/2	Agenda	See agenda page	Minute
64	2019/3/26	Agenda	See agenda page	Minute	file
63	2019/3/11	Agenda	See agenda page	Minute
62	2019/3/5	Agenda	See agenda page	Minute
61	2019/2/19	Agenda	See agenda page	Minute
60	2019/2/5	Agenda	See agenda page	Minute
59	2019/1/29	Agenda		Minute
58	2019/1/22	Agenda		Minute
57	2019/1/8	Agenda		Minute
56	2018/12/25	Agenda		Minute
55	2018/12/17	Agenda		Minute
54	2018/12/11	Agenda		Minute
53	2018/12/4	Agenda		Minute
52	2018/11/27	Agenda		Minute
51	2018/11/20	Agenda		Minute
50	2018/11/13	Agenda		Minute
49	2018/11/6	Agenda		Minute
48	2018/10/30	Agenda		Minute
47	2018/10/23	Agenda		Minute
46	2018/10/16	Agenda		Minute
45	2018/10/9	Agenda	Schedule	Minute
44	2018/10/2	Agenda	Schedule	Minute
43	2018/9/18	Agenda	Schedule	Minute
42	2018/9/4	Agenda	Schedule	Minute
41	2018/8/28	Agenda	Schedule	Minute
40	2018/8/21	Agenda	Schedule	Minute
39	2018/8/7	Agenda	Schedule	Minute
38	2018/7/31	Agenda	Schedule	Minute
37	2018/7/24	Agenda	Schedule	Minute
36	2018/7/17	Agenda	Schedule	Minute
35	2018/7/3	Agenda	Schedule	Minute
34	2018/6/26	Agenda	Schedule	Minute
33	2018/6/19	Agenda	Schedule	Minute
32	2018/6/12	Agenda	Schedule	Minute
31	2018/6/5	Agenda	Schedule	Minute
30	2018/5/22	Agenda	Schedule	Minute
29	2018/5/8	Agenda	Schedule	Minute
28	2018/5/1	Agenda	Schedule	Minute
27	2018/4/17	Agenda	Schedule	Minute
26	2018/4/10	Agenda	Schedule	Minute
25	2018/4/3	Agenda	Schedule	Minute
24	2018/3/27	Agenda	Schedule	Minute
23	2018/3/20	Agenda	Schedule	Minute
22	2018/3/13	Agenda	Schedule	Minute
21	2018/3/6	Agenda	Schedule	Minute
20	2018/2/27	Agenda	Schedule	Minute
19	2018/2/20	Agenda	Schedule	Minute
18	2018/2/13	Agenda	Schedule	Minute
17	2018/2/6	Agenda	Schedule	Minute
16	2018/1/30	Agenda	Schedule	Minute
15	2018/1/23	Agenda	Schedule	Minute
14	2018/1/16	Agenda	Schedule	Minute
13	2018/1/9	Agenda	Schedule	Minute
12	2017/12/19	Agenda	Schedule	Minute
11	2017/12/12	Agenda	Schedule	Minute
10	2017/11/28	Agenda	Schedule	Minute
9	2017/11/14	Agenda	Schedule	Minute
8	2017/11/7	Agenda	Schedule	Minute
7	2017/10/31	Agenda		Minute	G1707278-v4
6	2017/10/24	Agenda		Minute	G1707278-v3
5	2017/10/17	Agenda		Minute	G1707278-v2 G1707298 G1707300
4	2017/10/10			Minute	G1707278-v1
3	2017/10/3	Agenda		Minute	Commissioning plan for phase1
2	2017/9/26	Agenda		Minute	Commissioning plan for phase1
1	2017/9/19				Commissioning plan for phase1

Other meetings

2019/6/11: Summery meeting for E Run 1 Agenda, Minute
2019/6/5: Meeting for E Run on 6/8 Agenda, Minute
2019/3/8: Scheduling for FPMI Agenda, Minute
2018/9/3: Extended chief meeting for Arm commissioning Agenda, Minute
2018/8/30: 3rd Meeting for pump down at ITMX (Minute, Check list)
2018/8/23: 2nd Meeting for pump down at ITMX (Minute, Check list)
2018/8/16: Meeting for pump down at ITMX (Minute, Check list)
2018/5/28: Meeting for looking back to phase1 for future of KAGRA as an extended chief meeting.
2018/4/11: Meeting for pump down test at ETMX 2 (Minute, Check list)
2018/4/5: Meeting for pump down test at ETMX 1 (Minute, Check list)
2018/3/14: Meeting for pump down test at Center are (Minute, Check list)
2018/1/18: Meeting for pump down and cooling at ETMY3 (Minute, Check list)
2018/1/17: Meeting for pump down and cooling at ETMY2 (Minute, Check list)
2018/1/10: Meeting for pump down and cooling at ETMY1 (Minute, Check list)
2017/12/13: Meeting for pump down at ETMY (Minute, schedule)
2017/11/27~12/1Commissioning Workshop 2017
2017/11/17: Meeting for closing ETY (Minute)
2017/10/12: Meeting about PR2 pitch misalignment (Minute)

Task list

Documents

Commissioning plan for Phase1

Communication tools

KAGRA commissioning Mailing List
wiki
- Task list (Phase base, stage base)
- Meetings (morning, weekly)
Scheduler
Task assignment list ([[https://docs.google.com/spreadsheets/d/1qipguowxaEbEEV9LYxvHR_aMBxn0Evsl

-  ⇤ ← Revision 941 as of 2019-08-01 13:51:42 → 
  Size: 23518
  Editor: KeikoKokeyama
  Comment:
+   ← Revision 1630 as of 2020-02-18 10:47:30 → ⇥
  Size: 25579
  Editor: OsamuMiyakawa
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 2:
+<<TableOfContents(2)>>

-----

<<Anchor(1PMMeetings)>>

[[https://teamup.com/ksc4nkchhmh4stoekm|KAGRA Comissioning task planner]]

[[KAGRA/Commissioning/DailyMeetingArchive|Meeting archive]]

== Items ==
 * Mine work
  * Beam jitter noise budget
  * ASC
  * Laser power increase
  * REFL table power budget
  * OMC
 * Remote work
  * Feedforward MICH
  * Offload path
  * ASC
  * Calibration check
  * Lock loss investigation [[http://10.68.10.87/~controls/washimi/LockLossStudy/]]


 * See the commissioning task planner:
  * [[https://teamup.com/ksc4nkchhmh4stoekm]]
-Line 3:
+Line 33:
-Line 6:
+Line 37:
- . [[#1PMMeetings|1PM Daily Meeting]]
+ . [[#1PMMeetings|Daily Meeting]]
-Line 8:
+Line 39:
-  * Time: 1PM, everyday
+  * Time: 4PM, everyday
-Line 24:
+Line 55:
-== Working people assignment ==
 * [[https://teamup.com/kswnmta8p18h6u1uab|KAGRA Commissioning Planner]]
+== Tasks and working people assignment ==
 * [[https://teamup.com/ksc4nkchhmh4stoekm|KAGRA Comissioning task planner]]
 * [[https://teamup.com/kswnmta8p18h6u1uab|KAGRA commissioning people planner]]

== Schedule ==

 * Cryo cooler check on 8/5 (Kimura) 
 * ITMX cooler stop on 8/6 (CRY)
 * Y arm will be available from 8/8~
 * ETMX warm up 8/9 (CRY)
 * ETYY cooling (CRY)
-Line 31:
+Line 70:
+[[https://paper.dropbox.com/doc/VIS-Commissioning-Task-List--Ajp3qd1D4Z0~YpldRCShrQx6AQ-RKcNXfMFrqOtTAPU48qQf|VIS Task List]]
-Line 34:
+Line 75:
- * We need IFO commissioning strategy
-Line 36:
+Line 76:
+  * 3f transition
-Line 37:
+Line 78:
- * Try FPPRMI: with stable 3f signals and ALS extra range, FPPRMI may fix the glitches?
 * Y-arm lock

 * Type-A related
  * Fast shut off feature on type-A after lockloss not to ring (real time model change, Stefan)
+ * PRFRMI: with stable 3f signals and ALS extra range, FPPRMI may fix the glitches?

 * VIS related
-Line 45:
+Line 84:
-  * Exchanging modified HPCD.
-Line 47:
+Line 85:
-[[KAGRA/Commissioning/DailyMeetingArchive|Meeting archive]]

-----
-----

<<Anchor(1PMMeetings)>>

== Today's work plan: 2019/8/1 1PM - 2019/8/2 1PM ==

== Afternoon ==
 * GV opened last night
 * ITMY release ongoing (CRY, VIS)
 * After releasing, ITMY alignment using MICH (Nakano, CRY, VIS)
 * Fabian will investigate the difference between FLOAT and ALIGNED (Fabian)
 * Finesse re-measurement (Nakano) - We might want to warm up IY. To be discussed. Maybe if 70-80K doesn't recover the finesse.
 * Type-A common guardian 
 * Oplev swap for IMMT2
 * Oplev swap for PR2 if possible with IFO
 
= Evening =
 * Finesse measurement
 * Arm transition method commissioning

=


== Unofficial discussion ==

 * Plans for Feedforward on typeA
 * Commissioning strategy
 * 





==  2019/7/31 1PM - 2019/8/1 1PM ==
Commissioning leader: Miyakawa (July 29-30), Aso (August 1-3)

=== Afternoon ===
 * ITMY: BF work. (Okutomi, Sato, Fujii)
 * ITMY: H1 actuator investigation. (Ushiba, Yamada)

 * PEM: Reporting Temperature. (Yokozawa) 
 * VAC, MIF: Opning GV, alingment. (Saito, Nakano, Michimura, Akutsu)
 * AOS: Small works at ETMX (Akutsu)
 * Replacing light source for IMMT2. (Akutsu)
 * Type B: Back to aligned mode. (Fabian)
 * DET: replacing OS of DET computer for offline analysis. (T.Yamamoto)
 * CAL: Xend Tcam will be touched. (Inoue)

=== Evening ===
 * IFO some work. (Nakano, Michimura, Akutsu)
 * VIS work can be done for Y arm work since Y arm is not available for a while. (Fujii, Okutomi)

=== Weekend ===
 

=== Morning ===
 * Releasing ITMY suspension. (Ushiba)
 * PSL work for grounding problem. (Nakano) 
 * Maintenance for Ondotori at X-end (T.Yamamoto)



-----
  
<<Anchor(MorningMeetings)>>
== Daily morning meeting ==

 * Date and time: Every weekday, 9AM
 * First ~10min in the morning meeting, as short as possible
 * Location: Control room and Fan hut connected by eZuce


=== 2019/7/31(Wed.) ===

==== Schedule ====
 * ~7/31: Trial for DRMI with polarization.
 * 7/6~: Trial for mass lock

 * ITMX

 * ETMX

 * ITMY

 * ETMY


 * Long term:
  * 7/1-8/9: FPMI/DRFPMI commissioning
  * 8/12-10/4: ASC
  * 10/7-11/15: Post Commissioning
  * 11/18-12/13: Noise hunting

==== Report of work ====
 * Finesse of X arm became low to ~1000.
  * Transmitted light was low.
  * ETMX has frost again.
  * We decided to turn off the cooler.

 * ITMY motor was stuck actually. It reached to one direction of the limit of range. It was fixed.
  * More continuous works are planed.
  * Magnet was not off. Needs more investigation.



==== Work plan ====
 * DGS maintenance for exchanging k1dc0, adding BIO cards to k1ioo1 for ALS control (Yamamoto, Oshino)
  * VIS should go safe mode. (Fabian)
  * DC power source will be exchanged at ALS0 and ALS1 rack. (Kamiizumi)
 * AOS: Checking and exchanging laser for oplev, ETMY or PRM.
 * Type B: Releasing FR for all suspensions after finishing maintenance or afternoon.
+  * Automation script for damping for calm down phase 

  * PR2 & PRM oplev wind shield, PR3 LS oplev centering
  * Wind shield for PR2 and PRM (Enomoto)

 * For ASC things
  * Fix clipping at IFI with IFO (Kokeyama)
  * Measure TF of VIS as ASC actuator (Okutomi) 
  * One arm WFS test

 * ETMY strong damping (Lucia, Ushiba)
 * DAC non-linearity (http://klog.icrr.u-tokyo.ac.jp/osl/?r=10699)
 * QPD diagonalization ETMX and ETMY, for remote work (Akutsu)
 * Establishing investigation method for diagonalization using ETMY only (all VIS power)
 * Fix oplev noise for ITMY
 * Fix oplev noise for ITMX
 * Fix oplev gain for ETMY (Akutsu)
 * Covering wind shield for oplevs of iMC (Akutsu, or somebody)
 * Investigation for noise of length oplev noise for ITMs (VIS + CRY)
 * PD dark noise investigation (Kozakai)
 * Sensor correction for Type B by large motion like typhoon (Fabian)
 * Check for all PD or other circuits for grounding on table (Ushiba)
 * Gate valve test (Tomaru)
 * Vacuum pump noise measurement (Yokozawa)

 * Temperature stabilization due to fan off (Miyoki)




----
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+||93||2020/2/18||[[KAGRA/Commissioning/Weekly/20200218/Agenda|Agenda]]|| ||[[KAGRA/Commissioning/Weekly/20200218/Minute|Minute]]||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11473|File]]||
||92||2020/2/4||[[KAGRA/Commissioning/Weekly/20200204/Agenda|Agenda]]|| ||[[KAGRA/Commissioning/Weekly/20200204/Minute|Minute]]||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11453|File]]||
||91||2020/1/28||[[KAGRA/Commissioning/Weekly/20200128/Agenda|Agenda]]|| ||[[KAGRA/Commissioning/Weekly/20200128/Minute|Minute]]||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11419|File]]||
||90||2020/1/14||[[KAGRA/Commissioning/Weekly/20200114/Agenda|Agenda]]|| ||[[KAGRA/Commissioning/Weekly/20200114/Minute|Minute]]||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11370|File]]||
||89||2020/1/7||[[KAGRA/Commissioning/Weekly/20200107/Agenda|Agenda]]||See [[https://teamup.com/ksc4nkchhmh4stoekm|task planner page]]||[[KAGRA/Commissioning/Weekly/20200107/Minute|Minute]]|| ||
||88||2019/12/17||[[KAGRA/Commissioning/Weekly/20191217/Agenda|Agenda]]||See [[https://teamup.com/ksc4nkchhmh4stoekm|task planner page]]||[[KAGRA/Commissioning/Weekly/20191217/Minute|Minute]]|| ||
||87||2019/12/10||[[KAGRA/Commissioning/Weekly/20191210/Agenda|Agenda]]||See [[https://teamup.com/ksc4nkchhmh4stoekm|task planner page]]||[[KAGRA/Commissioning/Weekly/20191210/Minute|Minute]]|| ||
||86||2019/12/3||[[KAGRA/Commissioning/Weekly/20191203/Agenda|Agenda]]||See [[https://teamup.com/ksc4nkchhmh4stoekm|task planner page]]||[[KAGRA/Commissioning/Weekly/20191203/Minute|Minute]]||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11040|JGW-G1911040]]||
||85||2019/11/26||[[KAGRA/Commissioning/Weekly/20191126/Agenda|Agenda]]||See [[https://teamup.com/ksc4nkchhmh4stoekm|task planner page]]||[[KAGRA/Commissioning/Weekly/20191126/Minute|Minute]]||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11012|JGW-G1911012]][[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11010|JGW-G1911010]]||
||84||2019/11/19||[[KAGRA/Commissioning/Weekly/20191119/Agenda|Agenda]]||See agenda page||[[KAGRA/Commissioning/Weekly/20191119/Minute|Minute]]||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10998|File]]||
||83||2019/11/12||[[KAGRA/Commissioning/Weekly/20191112/Agenda|Agenda]]||See agenda page||[[KAGRA/Commissioning/Weekly/20191112/Minute|Minute]]|| ||
||82||2019/10/15||[[KAGRA/Commissioning/Weekly/20191015/Agenda|Agenda]]||See agenda page||[[KAGRA/Commissioning/Weekly/20191015/Minute|Minute]]|| ||
||81||2019/10/8||[[KAGRA/Commissioning/Weekly/20191008/Agenda|Agenda]]||See agenda page||[[KAGRA/Commissioning/Weekly/20191008/Minute|Minute]]|| ||
||80||2019/10/1||[[KAGRA/Commissioning/Weekly/20191001/Agenda|Agenda]]||See agenda page||[[KAGRA/Commissioning/Weekly/20191001/Minute|Minute]]||[[attachment:KAGRA/Commissioning/20191001_ccommissioning.pdf|file]]||
||79||2019/9/3||[[KAGRA/Commissioning/Weekly/20190903/Agenda|Agenda]]||See agenda page||[[KAGRA/Commissioning/Weekly/20190903/Minute|Minute]]|| ||
||78||2019/8/20||[[KAGRA/Commissioning/Weekly/20190820/Agenda|Agenda]]||See agenda page||[[KAGRA/Commissioning/Weekly/20190820/Minute|Minute]]||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10561| File]]||
||77||2019/8/6||[[KAGRA/Commissioning/Weekly/20190806/Agenda|Agenda]]||See agenda page||[[KAGRA/Commissioning/Weekly/20190806/Minute|Minute]]||||
-Line 297:
+Line 268:
-   * Task assignment list ([[https://docs.google.com/spreadsheets/d/1qipguowxaEbEEV9LYxvHR_aMBxn0Evsl5nZkP5Vhj_4/edit#gid=0|example]])
   * [[http://klog.icrr.u-tokyo.ac.jp/osl/index.php|klog]]
   * Issue tracker: [[http://172.16.33.20/bugzilla/|Bugzilla]] (currently site internal only)

== Readiness for the X arm commissioning ==
 * [[https://docs.google.com/spreadsheets/d/1S2gyFkyajlbPXMKCrqJV7181YFHUxUgPRB6SXz4z4jI/edit?usp=sharing]]


------
== for New members ==
 * [[KAGRA/Commissioning/ML|Joining commissioning Mailing List]]
+   * Task assignment list ([[https://docs.google.com/spreadsheets/d/1qipguowxaEbEEV9LYxvHR_aMBxn0Evsl

KAGRA/Commissioning/DailyWork << < 2024 / 10 > >>
Mon	Tue	Wed	Thu	Fri	Sat	Sun
	1	2	3	4	5	6
7	8	9	10	11	12	13
14	15	16	17	18	19	20
21	22	23	24	25	26	27
28	29	30	31

KAGRA/Commissioning/DailyWork << < 2024 / 10 > >>
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	1	2	3	4	5	6
7	8	9	10	11	12	13
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21	22	23	24	25	26	27
28	29	30	31

KAGRA/Commissioning/DailyWork << < 2024 / 10 > >>
Mon	Tue	Wed	Thu	Fri	Sat	Sun
	1	2	3	4	5	6
7	8	9	10	11	12	13
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