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  * Meeting room: Zoom3 (https://zoom.us/j/5045179604)

-----
=== 20190411 (Thu.) ===
  * Agenda
    * SDF flags preparation [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9228|slide]]
    * Fscan on SummaryPage
    * DetChar computers
    * Tool development [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10044}|slide]]

=== 20190404 (Thu.) ===
  * Agenda
    * IMC run (3/29-3/31, 4/3-4/4)
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10024|yamat]]
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10029|ckozakai]]
    * Progress of Kamioka works
  * Meeting room: Zoom--(3 (https://zoom.us/j/5045179604))--

<<TableOfContents(3)>>

-----
== Agenda & Minutes ==
=== 20210719 (Mon.) ===
  * Agenda:
    * hveto analysis
    * O4 commissioning
    * O4 readiness
  * Minutes
    * O4 commissioning
      * IMC-XARM commissioning
        * FNC control saturation [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17464|klog17464]]
        * MC Oplev glitches and 120Hz line still exist (K1:VIS-MC{I,E,O}_TM_WIT_{P,Y}
        

=== 20210705 (Mon.) ===
  * Agenda:
    * O3GK paper
    * white paper
    * O4 commissioning
  * Minutes:
    * O3GK paper
      * Hveto was rerun with various parameters.
      * But there is no improvement in the veto efficiency.
    * white paper
      * Final version was released.
      * There was no additional comments from LV
      * [[https://git.ligo.org/operations/operations-white-paper-2021|LIGO Git]]
    * O4 commissioning
      * no report

-----
=== 20210628 (Mon.) ===
  * Agenda
    * O3GK paper
    * white paper
    * O4 commissioning & preparation
  * Minutes
    * O3GK paper
      * Uchikata-san and Narikawa-san got a consistent results with Kozakai-san's one.
      * hveto was performed with 0.1 duration.
      * There is no efficient channel/sensor for glitch veto.
        * Some parameters comes from LIGO's one.
        * So we need to find better parameters for KAGRA's data.
        * We also need prepare the more efficient sensors for O4 observing run
      * Kihyun is also performing the crosscheck. (1 or 2 weeks later he can report.)
    * white paper
      * [[https://git.ligo.org/operations/operations-white-paper-2021|Draft on LIGO Git]]
      * TY will be added a description about CAGMon until LVK DET call.
      * WP will be fixed at Ops call on 6/30 (?)
    * O4 commissioning & preparation
      * IMC commissioning
        * [Ongoing] Glitches on OpLev
          * Because of too many glitches, it's difficult to investigate one by one.
          * K1:VIS-MC{I,E,O}_TM_WIT_{P,Y} (MC Oplevs)
        * [Fixed] PLL noise coming from broken circuit [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17188|klog17188]]
        * [Ongoing] PLL also has glitches (maybe) due to electrostatic discharge. [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17239|klog17239]]
          * K1:ALS-{X,Y}_BEAT_ERR_OUT_DQ (error signal)
          * K1:ALS-{X,Y}_PLL_SLOW_DAQ_OUT_DQ (feedback signal)
        * [Ongoing] non-stational correlation between IMC/PLL and Microphone
          * K1:CAL-CS_PROC_IMC_FREQUENCY_DQ (calibrated frequency noise)
          * K1:IMC-SERVO_SLOW_DAQ_OUT_DQ (feedback signal of IMC)
          * K1:ALS-{X,Y}_PLL_SLOW_DAQ_OUT_DQ (feedback signal of PLL)
        * [Ongoing] station correlation between PMC and Microphone
          * Investigation about significance of coherence is ongoing.
-----
=== 20210621 (Mon.) ===
  * Agenda
    * O3GK paper
    * O4 whitepaper
    * O4 commissioning & preparation
  * Minutes
    * O4 white paper
      * The 1st version of the draft was submitted on June 17th.
        * [[https://git.ligo.org/operations/operations-white-paper-2021|LIGO Git]]
        * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12985|JGW-T-2112985]]
      * Final deadline is June 30th.
        * We can still do the miner fix.
    * O4 commissioning & preparation
      * IMC Commissioning
        * Omicron trigger searches for MC Oplevs were resumed ([[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17150|klog#17150]]).
          * K1:VIS-MC{I,E,O}_TM_WIT_{P,Y} (oplev signals)
          * K1:VIS-IMMT{1,2}_TM_WIT_{P,Y} (as a reference of circuit noise)
        * SummaryPages
          * Glitch trigger tabs are added.
          * Loudest glitches can be seen on Pastavi (only internal ICRR network)
=== 20210614 (Mon.) ===
  * Agenda
    * O3GK paper
    * O4 whitepaper
    * O4 commissioning & preparation
  * Minutes
    * O3GK paper
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=13009|plot]]
    * O4 white paper
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12985|draft]]
      * It's better to include PEM plans in commissions support section if exits.
    * O4 commissioning & preparation
      * IMC Commissioning
        * We have now four frequency noise signal (IMC, PMC, PLL-X, PLL-Y)
          * K1:CAL-CS_PROC_IMC_FREQUENCY_DQ (calibrated IMC as MHz)
          * K1:PSL-PMC_PZT_HV_MON_OUT_DQ (calibrated PMC as Volt at PZT amp.)
          * K1:ALS-X_PLL_SLOW_DAQ_OUT_DQ (calibrated Green-X as Volt at PZT)
          * K1:ALS-X_PLL_SLOW_DAQ_OUT_DQ (calibrated Green-Y as Volt at PZT)
        * PMC (always) and others (sometimes) have correlation with microphone signal
          * K1:PEM-MIC_PSL_TABLE_PSL1_Z_OUT_DQ (calibrated as Pascal)
        * OpLev signals have some glitches and are investigated now.
          * K1:VIS-MC{I,E,O}_TM_WIT_{P,Y}
          * Real SUS motion?, electrical glitches?, scattered light? etc.
      * SummaryPages
        * Updated PSL, PEM tabs.
          * PLL signals are available.

-----

=== 20210607 (Mon.) ===
  * Agenda
    * O3GK paper
    * O4 whitepaper
    * O4 commissioning & preparation
  * Minutes
    * O3GK paper
      * Preparing some plots about histgram and glitch rate of both KAGRA and GEO
    * O4 whitepaper
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12985|draft]]
    * O4 commissioning & preparation
      * CAGMon development
        * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12986|slide]]
          * Found correlation between wind power and BNS ranges
          * OMMT1 doesn't (maybe) have Oplev. It's better to confirm what kind of sensors were coneected.
          * BNS range channel has ~2min latency. It may become better results by considering the latency in BNS range calculation.
      * IMC commissioning
        * Noise investigation ([[https://klog.icrr.u-tokyo.ac.jp/osl/?r=16928|klog]])
        * Correlation between IMC and MIC sometimes increase in spite of no change in microphone spectra.
        * Coupling coefficients may be changed in time.
      * Cross check of hveto results.
        * Kihyun's (KISTI) and Chihiro's (Kamioka) results were confirmed as consistent each other.
        * For O4 observing run, Kashiwa environment is also important for increasing machine power.
        * Requirement of machine power should be estimated soon (but it's strongly depends on the situation of O4 joining)
        * We plan to use 100-200 aux. channels and it's very helpful to analyze them at the same time for each pipeline.
      * lvalert
        * no report
      * SummaryPage
        * no report
      * DetChar cluster
        * no report


-----
=== 20210531 (Mon.) ===
  * Agenda
    * O3GK paper
    * O4 readiness
    * O4 commissioning & preparation
  * Minutes
    * O3GK paper
      * Comparison with Uchikata-san's and GEO people's results is ongoing.
      * Kihyun is performing validation check of his results => He will report in next or 2 weeks later telecon.
    * O4 readiness
      * #15 [Cont'd] State Vector Definition
        * Responsible: '''T. Yamamoto -> T. Yamamoto(?)'''
      * #16 + #20 Segment production with short latency
        * Responsible: '''K. Kokeyama -> '''
      * #17 [Cont'd ] Status web pages (summary pages, [[https://monitor.ligo.org/gwstatus|gw status]], [[https://ldas-jobs.ligo.caltech.edu/~gwistat/gwistat/gwistat_p.html|gw istat]])
        * Responsible: '''S. Oshino -> S. Oshino(?)'''
      * #18 [Cont'd] DQ event validation
        * Responsible: '''C. Kozakai -> '''
      * #19 [Cont'd] GraceDB
        * Responsible: '''H. Tagoshi -> H. Tegoshi(?)'''
      * #21 [New] Data Category (at least CAT1) production
        * Responsible:
      * #22 [New] RRT contribution
        * Responsible: '''H. Yuzurihara(?)'''
    * white paper 2021
      * No progress in draft.
      * Task list will be based on O4 readiness.
        * If there is another task plan, please let TY know (maybe CAGMon, ICA, pastavi development etc.).
    * O4 commissioning & preparation
      * LVAlert
        * no report
      * SummaryPages update
        * no report
      * DET cluster
        * no report
      * CAGMon development
        * no report

-----
=== 20210524 (Mon.) ===
  * Agenda
    * O3GK paper
    * O4 commissioning & preparation
    * O4 readiness
  * Minutes
    * O3GK paper
      * Discussion with GEO people is ongoing
    * 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. [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12937|slide]]
      * lvalert test
        * no report
      * DET cluster
        * no report
      * SummaryPages
        * added for some IMC signals and it work well.
    * White paper 2021
      * [[https://git.ligo.org/operations/operations-white-paper-2021|2021]]
      * [[https://git.ligo.org/operations/operations-white-paper-2020|2020]]

=== 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, [[https://monitor.ligo.org/gwstatus|gw status]], [[https://ldas-jobs.ligo.caltech.edu/~gwistat/gwistat/gwistat_p.html|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 [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12760|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...).
Line 20: Line 368:
        * There are some bugs on the latest version of hveto.
        * Old version of hveto was installed in k1sumX and will be installed in k1det0.
      * Fscan
        * Automation of the Scan is already succeeded.
        * We found a bug in our cache generation system and start to fix this bug.
=== 20190328 (Thu.) ===
  * Agenda
    * Progress of Kamioka works
      * Fscan run on test computer by manually.
      * For automating and integrating to SummaryPage, we need to generate Segment file in automatically.
      * We need to consider how to pick up line information and list up it from FScan results.
      * Automation of hveto on KISTI is succeeded with PMC error signal and PEM channels.
      * We start to install hveto on hveto@k1sumX.

=== 20190322 (Fri.) ===
  * --(Zoom3)-- -> Zoom2 (https://zoom.us/j/6676627462)
  * Agenda
    * f2f talk
      * 1 slot (Status talk -> T. Yamamoto)
      * DAC satellite [?]
    * Task list in next week
      * Sharing the current situation of SummaryPage
      * Preparing k1det0/1
      * Managing SDF for VIS
      * Installing LIGO's tools and KGWG's tools
    * Task list of engineering run
      * Providing glitch information: (t, f, SNR)
      * Providing line information: (f, df, Amplitude, noise source)
      * Preparing the information server
    * hveto and glitch identification (Pil-Jong & Kokeyama)
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9984|PMC important channel list]]
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9258|Glitch analysis presented in JPS]]


=== 20190314 ===
  * Skipped due to the JPS meeting

=== 20190307 ===
  * Agenda
    * Task list of engineering run on May
    * Tools and results from KGWG
    * Summary Page isseus
    * f2f talk

=== 20190228 ===
  * Meeting room
    * Zoom3 (https://zoom.us/j/5045179604)
  * Agenda
    * Magnetic coupling proposal with LV (Jishnu)
    * Enhancement of SummaryPage
    * Data sharing between Kamioka, Kashiwa, and KISTI
    * Young-Min's trip
  * Slide
    * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9903|yamat]]
        * 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)
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12499|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
      * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12481|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.

=== Past meeting ===
  * [[KAGRA/Subgroups/DET/Meeting/2020|2020]]
  * [[KAGRA/Subgroups/DET/Meeting/2019|2019]]

Meetings


Agenda & Minutes

20210719 (Mon.)

  • Agenda:
    • hveto analysis
    • O4 commissioning
    • O4 readiness
  • Minutes
    • O4 commissioning
      • IMC-XARM commissioning
        • FNC control saturation klog17464

        • MC Oplev glitches and 120Hz line still exist (K1:VIS-MC{I,E,O}_TM_WIT_{P,Y}

20210705 (Mon.)

  • Agenda:
    • O3GK paper
    • white paper
    • O4 commissioning
  • Minutes:
    • O3GK paper
      • Hveto was rerun with various parameters.
      • But there is no improvement in the veto efficiency.
    • white paper
      • Final version was released.
      • There was no additional comments from LV
      • LIGO Git

    • O4 commissioning
      • no report


20210628 (Mon.)

  • Agenda
    • O3GK paper
    • white paper
    • O4 commissioning & preparation

  • Minutes
    • O3GK paper
      • Uchikata-san and Narikawa-san got a consistent results with Kozakai-san's one.
      • hveto was performed with 0.1 duration.
      • There is no efficient channel/sensor for glitch veto.
        • Some parameters comes from LIGO's one.
        • So we need to find better parameters for KAGRA's data.
        • We also need prepare the more efficient sensors for O4 observing run
      • Kihyun is also performing the crosscheck. (1 or 2 weeks later he can report.)
    • white paper
      • Draft on LIGO Git

      • TY will be added a description about CAGMon until LVK DET call.
      • WP will be fixed at Ops call on 6/30 (?)
    • O4 commissioning & preparation

      • IMC commissioning
        • [Ongoing] Glitches on OpLev

          • Because of too many glitches, it's difficult to investigate one by one.
          • K1:VIS-MC{I,E,O}_TM_WIT_{P,Y} (MC Oplevs)
        • [Fixed] PLL noise coming from broken circuit klog17188

        • [Ongoing] PLL also has glitches (maybe) due to electrostatic discharge. klog17239

          • K1:ALS-{X,Y}_BEAT_ERR_OUT_DQ (error signal)
          • K1:ALS-{X,Y}_PLL_SLOW_DAQ_OUT_DQ (feedback signal)
        • [Ongoing] non-stational correlation between IMC/PLL and Microphone
          • K1:CAL-CS_PROC_IMC_FREQUENCY_DQ (calibrated frequency noise)
          • K1:IMC-SERVO_SLOW_DAQ_OUT_DQ (feedback signal of IMC)
          • K1:ALS-{X,Y}_PLL_SLOW_DAQ_OUT_DQ (feedback signal of PLL)
        • [Ongoing] station correlation between PMC and Microphone
          • Investigation about significance of coherence is ongoing.


20210621 (Mon.)

  • Agenda
    • O3GK paper
    • O4 whitepaper
    • O4 commissioning & preparation

  • Minutes
    • O4 white paper
      • The 1st version of the draft was submitted on June 17th.
      • Final deadline is June 30th.
        • We can still do the miner fix.
    • O4 commissioning & preparation

      • IMC Commissioning
        • Omicron trigger searches for MC Oplevs were resumed (klog#17150).

          • K1:VIS-MC{I,E,O}_TM_WIT_{P,Y} (oplev signals)
          • K1:VIS-IMMT{1,2}_TM_WIT_{P,Y} (as a reference of circuit noise)
        • SummaryPages

          • Glitch trigger tabs are added.
          • Loudest glitches can be seen on Pastavi (only internal ICRR network)

20210614 (Mon.)

  • Agenda
    • O3GK paper
    • O4 whitepaper
    • O4 commissioning & preparation

  • Minutes
    • O3GK paper
    • O4 white paper
      • draft

      • It's better to include PEM plans in commissions support section if exits.
    • O4 commissioning & preparation

      • IMC Commissioning
        • We have now four frequency noise signal (IMC, PMC, PLL-X, PLL-Y)
          • K1:CAL-CS_PROC_IMC_FREQUENCY_DQ (calibrated IMC as MHz)
          • K1:PSL-PMC_PZT_HV_MON_OUT_DQ (calibrated PMC as Volt at PZT amp.)
          • K1:ALS-X_PLL_SLOW_DAQ_OUT_DQ (calibrated Green-X as Volt at PZT)
          • K1:ALS-X_PLL_SLOW_DAQ_OUT_DQ (calibrated Green-Y as Volt at PZT)
        • PMC (always) and others (sometimes) have correlation with microphone signal
          • K1:PEM-MIC_PSL_TABLE_PSL1_Z_OUT_DQ (calibrated as Pascal)
        • OpLev signals have some glitches and are investigated now.

          • K1:VIS-MC{I,E,O}_TM_WIT_{P,Y}
          • Real SUS motion?, electrical glitches?, scattered light? etc.
      • SummaryPages

        • Updated PSL, PEM tabs.
          • PLL signals are available.


20210607 (Mon.)

  • Agenda
    • O3GK paper
    • O4 whitepaper
    • O4 commissioning & preparation

  • Minutes
    • O3GK paper
      • Preparing some plots about histgram and glitch rate of both KAGRA and GEO
    • O4 whitepaper
    • O4 commissioning & preparation

      • CAGMon development
        • slide

          • Found correlation between wind power and BNS ranges
          • OMMT1 doesn't (maybe) have Oplev. It's better to confirm what kind of sensors were coneected.
          • BNS range channel has ~2min latency. It may become better results by considering the latency in BNS range calculation.
      • IMC commissioning
        • Noise investigation (klog)

        • Correlation between IMC and MIC sometimes increase in spite of no change in microphone spectra.
        • Coupling coefficients may be changed in time.
      • Cross check of hveto results.
        • Kihyun's (KISTI) and Chihiro's (Kamioka) results were confirmed as consistent each other.
        • For O4 observing run, Kashiwa environment is also important for increasing machine power.
        • Requirement of machine power should be estimated soon (but it's strongly depends on the situation of O4 joining)
        • We plan to use 100-200 aux. channels and it's very helpful to analyze them at the same time for each pipeline.
      • lvalert
        • no report
      • SummaryPage

        • no report
      • DetChar cluster

        • no report


20210531 (Mon.)

  • Agenda
    • O3GK paper
    • O4 readiness
    • O4 commissioning & preparation

  • Minutes
    • O3GK paper
      • Comparison with Uchikata-san's and GEO people's results is ongoing.
      • Kihyun is performing validation check of his results => He will report in next or 2 weeks later telecon.

    • O4 readiness
      • #15 [Cont'd] State Vector Definition
        • Responsible: T. Yamamoto -> T. Yamamoto(?)

      • #16 + #20 Segment production with short latency
        • Responsible: K. Kokeyama ->

      • #17 [Cont'd ] Status web pages (summary pages, gw status, gw istat)

        • Responsible: S. Oshino -> S. Oshino(?)

      • #18 [Cont'd] DQ event validation
        • Responsible: C. Kozakai ->

      • #19 [Cont'd] GraceDB
        • Responsible: H. Tagoshi -> H. Tegoshi(?)

      • #21 [New] Data Category (at least CAT1) production
        • Responsible:
      • #22 [New] RRT contribution
        • Responsible: H. Yuzurihara(?)

    • white paper 2021
      • No progress in draft.
      • Task list will be based on O4 readiness.
        • If there is another task plan, please let TY know (maybe CAGMon, ICA, pastavi development etc.).
    • O4 commissioning & preparation

      • LVAlert
        • no report
      • SummaryPages update

        • no report
      • DET cluster
        • no report
      • CAGMon development
        • no report


20210524 (Mon.)

  • Agenda
    • O3GK paper
    • O4 commissioning & preparation

    • O4 readiness
  • Minutes
    • O3GK paper
      • Discussion with GEO people is ongoing
    • 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
        • no report
      • SummaryPages

        • added for some IMC signals and it work well.
    • White paper 2021

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
  • 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
  • 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

    • 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
    • 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.

Past meeting

KAGRA/Subgroups/DET/Meeting (last edited 2024-12-24 17:26:50 by HirotakaYuzurihara)