Meetings

Meeting time: 14:00-15:00 JST/KST on every Thursday
Meeting room: Zoom3 (https://zoom.us/j/5045179604))--

Contents

Meetings
1. Agenda & Minutes

Agenda & Minutes

20210524 (Mon.)

Agenda
- O3GK paper
- O4 commissioning & preparation
  - MC circuit noise hunting
    - Current spectrum is too clean 1/f noise.
      - Frequency noise should shows 1/f spectrum.
      - But we haven't checked it's a real frequency noise (circuit noise etc.).
      - Nakano-kun said current spectrum is consistent with past measurements.
  - sound correlation
    - Investigating sound correlation with three microphones. slide
  - lvalert test
    - no report
  - DET cluster
  - SummaryPages
    - added for some IMC signals and it work well.
- White paper 2021
  - 2021
  - 2020
- O4 readiness

20210517 (Mon.)

Agenda
- KAGRA O4 readiness
- LVK white paper 2021
- O3GK paper
- IMC commissioning
Minutes
- KAGRA O4 readiness
  - #15 [Cont'd] State Vector Definition
    - Responsible: T. Yamamoto ->
  - #16 [Cont'd] DQSEGDB capability
    - Responsible: K. Kokeyama ->
  - #17 [Cont'd ] Status web pages (summary pages, gw status, gw istat)
    - Responsible: S. Oshino ->
  - #18 [Cont'd] DQ event validation
    - Responsible: C. Kozakai ->
  - #19 [Cont'd] GraceDB
    - Responsible: H. Tagoshi ->
  - #20 [New] Segment production (merged with #16?)
    - Responsible:
  - #21 [New] Data Category (at least CAT1) production
    - Responsible:
  - #22 [New] RRT contribution
- LVK white paper
  - Responsible:
  - What TY thought
    - All activities which are submitted as 2021 DET effort should be described on this documents.
    - It will be based on white paper 2020 and KAGRA O4 readiness.
    - Should clarify who will do each item (though personal name itself is not described on this documents).
    - Should show the rough timeline for R&D tasks.
- O3GK paper
  - We need to continue to discuss with GEO people about GEO data analysis.
- IMC Commissioning
  - Current IMC control signals on DGS are contaminated by circuit noise.
  - Important thing is that contamination is occurred only on DGS signals or also on real analog signals
  - Important channels
    - K1:IMC-SERVO_{MIXER,FAST,SLOW}_DAQ_OUT_DQ
    - K1:IMC-SERVO_NPRO_TEMP_BIAS_OUT_DQ
    - => These channels will be added to SummaryPages
- O4 preparation
  - CAGMon development
    - no report
  - lvalert test
    - no report
  - DET cluster
    - no report

20210510 (Mon.)

Agenda
- KIW
- O3GK paper
- IMC Commissioning
- O4 preparation

Minutes

KIW

- Status of KAGRA DET (20 min) => T. Yamamoto
- Status of LIGO Detchar (20 min)
- Status of Virgo Detchar (20 min)
- Contributed Talk 1 - one slot from KAGRA (15 min) => H. Yuzurihara
- Contributed Talk 2 - CAGMon tools (15 min)
- Contributed Talk 3 - KISTI's data transfer and computing (15 min)

O3GK paper
- hveto process for GEO600 was done.
IMC Commissioning
- [PMC] Acoustic coherence (20-200Hz)
- [IMC] Oscillation? (13-15MHz)
O4 preparation
- SummaryPages
  - no report
- lvalert
  - no report
- DET cluster
  - no report

20210426 (Mon.)

Agenda
- O3GK analysis
- O4 preparation
- IMC Commissioning
Minutes
- O3GK analysis
  - Omicron analysis of GEO was finished.
  - Checking results is ongoing.
  - We need to convert segment information on DQSEGDB to xml format.
  - After checking omicron results, hveto analysis can be started.
- CAG Mon development
  - CAG Mon was able to detect some correlation in O3GK data
  - Prioritize is not done yet.
    - prioritize can be decided by correlation coefficient value or total duration of correlation appearing
  - We need more time to develop CAGMon (before we move to review process.).
- IMC Commissioning
  - Microphone self noise is evaluating now.
  - They will be installed in PSL room
- Paper writing person(s) from DET
  - TY takes over from Kozakai-san.
- summary of lvalert test for LVK DET telecon

20210419 (Mon.)

Agenda
- O3GK analysis
- O4 preparation (LV alert, SummaryPages, CAGMon)
- PMC/IMC noise hunting
Minutes
- O3GK analysis
  - GEO data analysis is started.
  - Channel list is prepared by GEO people.
- PMC/IMC noise hunting
  - Sound noise
    - Frequency noise has coherence with microphone signal.
    - Sound noise affected to DARM sensitivity during O3GK.
    - Noise source and injection injection route should be investigated.
  - Electrical noise(?)
    - Accelerometer channel has coherence with frequency noise when PEM sensor turned OFF.
    - Circuit noise level is small, but some electrical coherence may exist.

20210408 (Thu.)

Agenda
- O3GK analysis
- SummaryPage
- LV alert slide
- NDS2
- IMC Commissioning
Minutes
- O3GK analysis
  - hveto re-analysis for a part of data was done.
    - round winner is same
    - significant is slightly difference, (using same conf. triggers, version, etc)
    - Next step is to check consistency of veto segment
  - GEO data
    - Analysis itself will be performed by KAGRA people
    - Understanding results will be performed by GEO (+KAGRA) people

20210401 (Thu.)

Agenda
- Progress of hveto analysis
- DetChar cluster
- lvalert
- SummaryPages
- RRT for O4
Minutes
- Announcement
  - New slot of DET meeting.
    - => Pending because TY cannot know free time slot yet. (7 doodle poll is running...).
  - hveto
    - Omicron test analysis is successful.
    - hveto doesn't run on m31 yet.
    - We need to KISTI environment.
  - lvalert
    - Waiting response from LV people.
    - We need realistic json format of GW alert.
    - Only for the purpose of launching pipelines, dummy format is also used.
  - SummaryPages
    - The 1st version of VIS tab is already available (Only Type-A and guardians).
    - Importing PSL tab from LIGO is already done.
    - But there is many difference of channel name convention.

20210325 (Thu.)

Agenda
- Progress of hveto analysis
- GEO data analysis
- SummaryPage construction
- lvalert test
- PMC/IMC commissioning
- Meeting time in the next FY
Minutes
- Progress of hveto analysis
  - Consistency check still remains and it is solved yet.
- GEO data analysis
  - Basic takeover is finished.
  - Uchikata-san and Narikawa-san can start to use Omicron and hveto.
  - But some error occurs on hveto@m31.
  - We should fixed environmental problem.
- SummaryPage construction
  - The 1st version is already constructed on test directory.
  - We can apply it for product environment because current SummaryPage is not valid.
- lvalert test
  - lvalert itself works well.
  - Next step is receiving alert.
  - We need to ask LIGO people about alert format etc.
- PMC/IMC commissioning
  - Due to a lot of troubles, we haven't achieved IMC locked yet.
  - We may start some kind of commissioning from Mid or Late of April.
- Meeting time in the next FY
  - TY will circulate doodle poll.

20210317 (Thu.)

O3GK paper
- hveto cross-check
  - Checking Omicron parameter remains.
  - Required re-run for whole two weeks.
- veto segment production
  - Merging short segments is not required.
- GEO data analysis
  - It can be done by someone form Tagoshi-san's group.
O4 preparation
- Kamioka cluster
  - It's pending due to the recovery work of power outage.
- Takeover about Omicron, hveto, GlitchPlot
  - Takeover itself is done.
  - TY is finding candidate person of each pipelines toward O4.
- Omega-scan test
  - Installing on Kashiwa
- lvalert test
  - It's works well on k1det1
- SummaryPage update
  - The 1st version of VIS page is constructed.
  - It's being checked by Miyo-kun.
- IMC commissioning
  - It is not locked yet because of some troubles.

20210225 (Thu.)

Agenda
- Progress of O3GK paper
- O4 preparation
Minutes
- Progress of O3GK paper
  - Chihiro re-analysis with proper science segment for omicron triggers.
  - A part of Kihyun's analysis is done.
  - Cross-check can be done. But not start yet.
- DetChar cluster in Kamioka
  - http://klog.icrr.u-tokyo.ac.jp/osl/?r=16082
  - OS installation for master node was done.
- Omega-scan test
  - Installation for Kashiwa cluster was done.
  - Error is occurred on gwdatafind.
- SummaryPages
- LVAlert

20210218 (Thu.)

Agenda
- Progress of O3GK paper
- O3 data replay
- O4 preparation
Minutes
- Progress of O3GK paper
  - hveto conf is same
  - segment is used as latest same science segments
  - definition of cutting end of segments is difference.
  - Channel list is used as on github's one.
  - Next step -> unifying cutting definition.
    - Kihyun will re-run omicron with new segment cutting definition
  - We need to merge veto segment from a lot of short ones to continuous one.
- O3 data replay
  - Main purpose of O3 data replay is performing end-2-end test of low-latency pipelines (CAL, DET, DAS, etc).
  - LV will use real O3 data.
  - KAGRA provides simulated data (~80Mpc for BNS) because of too poor sensitivity of O3GK data.
  - We may need to inject GWs on software with consistency with LV's real events.
  - Frame work of software injection is already available.
- SummaryPage
  - Updating VIS page.
  - It will be closed to LIGO's one.
- LVAlert
  - k1det1 can be used for test.
  - Need personal account because we use personal DCC account for accessing GraceDB.
    - Ask LV people how to get common account on next LVK DET meeting.

20210204 (Thu.)

Agenda
- Progress of O3GK paper
- O3 data replay
- O4 requirement
Minutes
- Progress of O3GK paper
  - Omicron trigger transfer: Kamioka -> KISTI, it is postponed.
    - Young-Min asked KISTI administrator.
  - GW-search triggers have not been served yet.
- O3 data replay
  - K1:OPS-SIM_GAUSS1_IN1 (simulated error signal)
  - K1:OPS-SIM_GAUSS1_OUT (simulated h(t) )
    - gaussian noise as floor level
    - Some spectral lines (cal lines, violin mode, power lines)
    - Simulated glitches.
  - K1:OPS-SIM_GAUSS3_OUT (simulated auxiliary channel)
- O4 requirement
  - DQ state vector (Yamamoto)
    - Providing on real-time model.
  - Data Quality Report (Yuzurihara)
    - First step is to use lvalert in order to receive GW alert from GraceDB.
  - Transient Event validation (Kozakai)
    - Basic idea is omicron+hveto (same as O3GK)
    - Takeover should be done from Kozakai-san.
  - Category veto (Yamamoto)
    - At least CAT1 should be provided.
    - We need to convert to veto-definer file format.
  - Spectral lines investigation (Yokozawa)
    - Listing of VIS-derived peak frequencies.

20210128 (Thu.)

Agenda
- Report from Burst search
- Binary range evaluation with C20 offline h(t)
- Progress of O3GK paper
Minutes
- Report from Burst search
- Binary range evaluation with C20 offline h(t)
  - slide
  - Multi-taper and Welch show similar results
  - Bayesline result is slightly different from results by other two methods.
  - Estimated values are enough for O3GK (search) paper.
  - LVK review of this work is necessary for publishing results.
- Progress of O3GK paper

20210121 (Thu.)

Agenda
- Announcement
  - LVK DetChar call will be held (Jan. 25 19:00 JST, KST)
- Progress of O3GK paper
- CAGMon results
- O3 Data replay
Minutes
- Progress of O3GK paper
  - Some difference between Kihyun's and Chihiro's results.
  - hveto setting should be tuned on conf file and re-run again.
  - GW search results will be provided 1-2 months later (?).
- CAGMon results
  - slide
- O3 data replay
  - LV requested the simulated data instead of O3GK data as KAGRA's data.
  - Auxiliary channels which has realistic coherence, coincidence etc are not available.
  - All multi-channel analyses cannot work well in such situation.
  - We need more discussion how do we join O3 data replay.

20210107 (Thu.)

Agenda
- Progress of O3GK analysis
- O4 preparation
Minutes
- Progress of O3GK analysis
  - Analysis itself was finished.
  - Results by Chihiro and Kihyun are now comparing.
    - => Some conf. is still difference.
  - At least after finishing paper work, omicron triggers should be shared on Kashiwa cluster for remote site people.
- O4 preparation
  - Model update will be finished soon.
    - => After model update, suspension commissioning will be started.
  - SummaryPages seems to be stopped.
    - => Because of the channel name update by VIS model changes.
    - => Current situation of real-time model is slightly complicated. ITMY: Old model, others: new model etc.
    - => After finishing CRY measurements, all suspension models are unified.

Meetings

Agenda & Minutes

20210524 (Mon.)

20210517 (Mon.)

20210510 (Mon.)

20210426 (Mon.)

20210419 (Mon.)

20210408 (Thu.)

20210401 (Thu.)

20210325 (Thu.)

20210317 (Thu.)

20210225 (Thu.)

20210218 (Thu.)

20210204 (Thu.)

20210128 (Thu.)

20210121 (Thu.)

20210107 (Thu.)

Past meeting