Meetings

• Meeting time: 14:00-15:00 JST/KST on every Thursday

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

Agenda & Minutes

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.

20201224 (Thu.)

• Agenda
  • Progress of O3GK analysis
  • Plan of O3 data replay
• Minutes
  • hveto with C20
    • Configuration was changed.
    • Analysis will be finished in this end of year.

20201203 (Thu.)

• Agenda
  • Announcements

    • Recovery of SummaryPage

    • DetChar O4 requirement document

  • Progress of O3GK analysis (incl. GEO data)
  • LV(K) O3 data replay
  • BNS range of O3GK with C20 h(t)
• Minutes
  • Progress of O3GK analysis
    • How should we do until releasing cWB triggers?

    • => ask to Man-san or Hayama-san.

  • GEO data analysis
    • There is no enough man-power for analyzing GEO data.

    • GEO DetChar frames should be transferred to Kashiwa.

    • => discuss with James.

  • LV(K) O3 data replay
    • LV plans to perform data replay activity for the end-2
  • BNS range of O3GK with C20 h(t)

20201126 (Thu.)

• Agenda
  • O3GK analysis
    • hveto progress (cWB situation)
    • Glitch catalogue
  • O4 preparation

    • SummaryPage problem

    • New computers in Kashiwa
  • Meetings
• Minutes
  • hveto progress (cWB situation)
    • waiting cWB triggers now.
    • Test with past CBC triggers will be performed.
  • Glitch catalogue
    • The 1st step is to see the bandbassed h(t) around Omicron triggers.
    • Cutoff frequencies of bandpass filter can be decided by Omicron frequency info.

  • SummaryPage problem

    • NFS trouble occurs and it is not available.
    • Only Kamioka local network, k1sum0 is available instead of gwdet.icrr....
  • f2f
    • Maybe one talk in O3GK session.
  • KIW7
    • No talk
  • JPS
    • No talk

20201119 (Thu.)

• Agenda
  • C20 offline h(t)
  • O4 preparation
  • f2f/KIW7/JPS
• Minutes
  • C20 offline h(t)
    • hveto analysis is performed with Omicron triggers of h(t) and aux. channels.
      • cWB search is not finished yet.
    • Data transfer to KISTI is performed with DMG software.
  • O4 preparation

    • SummaryPage is now stopped for the maintenance and updates.

    • New DetChar computers are preparing in Kashiwa

      • Procuring itself is finished until end of year.
    • Additional disk storage is needed in KISTI as Tier-1 site.
      • 600-800TB/yr is required to store the full data of O4 (in 1-year obs. case.)
      • Actual past results and data-access frequency are required to submit a proposal.
  • f2f
    • O3GK session: 1 slot(?) [progress report of O3GK analysis]
    • parallel session: No talk(?)
    • poster session: No talk(?)
  • KIW7
    • No talk(?)
  • JPS
    • No talk(?)
  • Monthly telecon with LV
    • held on last Monday in every month.
    • start from Nov. 30th or Jan. 25th
    • Dec 28th will be cancelled due to the end-of-year holidays.

20201111 (Thu.)

• Agenda
  • C20 offline h(t)
  • O4 data release schedule
  • f2f/KIW7
• Minutes
  • C20 offline h(t)
    • Comment from DAC meeting:
      • Burst group can be provide GW event trigger list (schedule is not decided yet.)
      • Detail DQ info. around GRB events is very useful.
    • Data transfer on DET server
      • Done.
    • Omicron trigger generation for C20 h(t)
      • Generation itself was finished
      • There is no error on Omicron process.
    • Data transfer on KISTI cluster
      • Sangwook will do.
      • After the data transfer, Kihyun can resume his analysis with C20.
  • O4 data release schedule

    • O4 data release schedule

20201103 (Thu.)

• Agenda
  • C20 offline h(t)
  • O4 data release schedule
• Minutes
  • C20 offline h(t)
    • Data should be copied to Kamioka server.
    • Glitch trigger search by Omicron
      • After data copy, it will be resumed.
    • hveto needs GW trigger search
      • We can demonstrate with omicron trigger of h(t).
      • After GW search triggers are available it will be resumed.
    • Data transfer to KISTI
      • discuss with DAS people on the next KGWG meeting
  • O4 data release schedule
    • Dead line: December ..
    • Please fill the requested time to link below.

      • http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/DataRlease

20201022 (Thu.)

• Agenda
  • Segment of O3GK
  • Documentation about O3GK info.

  • SummaryPage for O4 installation

• Minutes

20201008 (Thu.)

• Agenda
  • Planned power outage
  • hveto bug
• Minutes
  • Planned power outage
    • All jobs on k1det must be stopped until 10/13 morning.
  • hveto bug
    • Code reading is in progress by Chihiro.
      • There is no response from LIGO people.
    • Analysis of Apr 8th - 21st data is on going.
  • Segment update
    • Discussion with Robert is resumed.
    • Upload method is 'pull' from LIGO side.
    • They already know the path to the segment files and types of segment file.
    • Remains tasks are schedule and segment name on DQSEGDB.
  • Announcement
    • 22:00 (JST/KST) tonight, LVK operation workshop will be held.

20201001 (Thu.)

• Agenda
  • Planned power outage (10/14)
• Minutes
  • Planned power outage (10/14)
    • k1det will be stopped until 10/13 morning.
    • They will come back online after 10/15.

20200924 (Thu.)

• Agenda
  • Segment update
  • hveto problem
• Minutes
  • Segment update
    • All 9 segment info. were fixed.
    • They had already copied to Kashiwa and Kamioka.
    • They should be copied also KISTI.
    • TY will contact to Robert again.
    • After then, segments will be uploaded to DQSEGDB.
  • hveto problem
    • Problem is cased by hveto
    • Some trigger files are sent to LDAS.
    • Investigation on LDAS is ongoing.
    • Conf. file on Kamioka should be share to KISTI.

20200911 (Thu.)

• Agenda
  • Progress of O3GK analysis
  • Duty cycle evaluation during O3GK
  • Lock loss study

  • O3GK DetChar talk in LVK meeting

• Minuets
  • Progress of O3GK analysis
    • Investigating strange behavior of hveto
    • On KISTI cluster, it works well.
      • Cross check of Chihiro's result and Kihyun's one is ongoing.
      • Round winner channel changes day by day. (Is it consistent with past results?)
      • K1:ASC-AS*** is not maintained well.
      • Both Safe and Unsafe channel list should be used as same ones.
  • Duty cycle evaluation during O3GK
    • 54% duty factor (2 weeks average)
    • BNS range, 500kpc (2 weeks average, cal mistakes is already revised.)
    • Only last a few days, BPC lines are enabled.
  • Lock loss study
    • BLRMS has some time delay.
    • LOCKED segments should be used ins

  • O3GK DetChar talk in LVK meeting

    • topics
      • Achievement of KAGRA readiness
      • Progress of concrete analysis
      • BNS ranges, duty factor as the overview.

    • => Yamamoto, Kozakai

20200903 (Thu.)

• Agenda
  • trigger generation
  • hveto analysis
• Minutes
  • trigger generation
    • Analysis is finished.
    • Two channels have some problem.
    • The version problem of gwpy occurs on KISTI.

    • Latest channel list should be shared on GitHub.

  • hveto analysis

    • Omicron triggers should be shared with LIGO people. (Kamioka -> LIGO) => Kozakai-san will contact to Alex.

    • hveto works well on KISTI. => Kihyun will continue to analysis.

20200827 (Thu.)

• Agenda
  • Segment Update
  • KAGRA data analysis
  • GEO data analysis
• Minutes
  • Segment Update
    • Broken frames period are removed from new science segments (K1-GRD_SCIENCE_MODE_AND_DAQ_STATUS_OK)
    • Broken frames period as provided a new segments definition (K1-DAQ_STATUS_BAD)
    • They are store in detchar@m31:Segments/
    • Obsolete segments are still generated (???).
  • KAGRA data analysis

    • Some PEM sensors are added to the channel list for omicron analysis. => (until next week.)

    • When is the location of each sensor fixed? => At least around Feb. (also for PORTABLE)

    • Disk full problem and script errors are occur KISTI
    • hveto problem occurs (Apr 15. UTC)
  • GEO data analysis

20200806 (Thu.)

• Agenda
  • f2f meeting
  • progress of O3GK
• Minutes
  • f2f meeting
    • We have parallel session. (need to prepare two talks for Experiment and Data analysis.)

    • Experiment -> Yamamoto, Data Analysis -> Kozakai? Kihyun also considers an oral or a poster session.

  • progress of O3GK
    • Reconsidering Safe/Unsafe channels is on going.
    • We need to re-analyze for some channels and some segments by Omicron.
    • Cross check of KAGRA data analysis can be done by Kihyun.
    • GEO data transfer to KISTI cluster is almost done.
    • Kihyun can continue to analyze the GEO data.
    • We need to do cross check of the results of GEO data analysis.

20200730 (Thu.)

• Agenda

  • Safe/Unsafe channel (slide)

20200723 (Thu.)

• Cancelled

20200702 (Thu.)

• Agenda
  • Safe/Unsafe channel
  • Omicron troubles
  • GEO data analysis

20200625 (Thu.)

• Agenda
  • Broken frames
  • O3GK
    • trigger generation
    • hveto
    • CAGMon
• Minutes
  • Broken frames
    • Totally 26 broken frames. (Science: 4, Locked: 4, Unlocked: 18)
    • TY will remove 32-second long data which is in broken frames from science mode segments by manually.
    • After then, the segment script will be updated for taking into account broken frames.
  • O3GK
    • trigger generation
      • Some runtime error occurs on the Kamioka server.
      • Trigger generation test is started with KAGRA data on the KISTI server.
      • GEO data transfer to the KISTI server is not finished yet.
    • hveto
      • Test with short time data is ongoing
    • CAGMon
      • Analysis with Apr. observation data is already started.

      • Used Channel list is same as YuzuSummary's one.

      • Safe/Unsefe channel list is also required --> will be discussed next week.

20200618 (Thu.)

• Agenda
  • LVK operations white paper
    • task list
    • introduction of ICA
    • Current progress of CAGMON

20200610 (Thu.)

• Agenda

  • DAQ error during O3GK (JGW-G2011751)

  • KAGRA data analysis (Omicron/hveto)
  • GEO data analysis (Omicron/CAGMon)
• Minutes
  • DAQ error during O3GK
    • Ueno-san found file reading error with following frames.

      • K-K1_C-1270444416-32.gwf 2020-04-09 14:13:18 (JST)
        K-K1_C-1270570496-32.gwf 2020-04-11 01:14:38 (JST)
        K-K1_C-1270577376-32.gwf 2020-04-11 03:09:18 (JST)
        K-K1_C-1270680672-32.gwf 2020-04-12 07:50:54 (JST)
        K-K1_C-1271033536-32.gwf 2020-04-16 09:51:58 (JST)
        K-K1_C-1271174912-32.gwf 2020-04-18 01:08:14 (JST)
        K-K1_C-1271226144-32.gwf 2020-04-18 15:22:06 (JST)
        K-K1_C-1271440736-32.gwf 2020-04-21 02:58:38 (JST)

  • KAGRA data analysis
    • Omicron search around GRB was finished.
    • Whole 2-weeks analysis is now being performed.
    • It's better to remove some channels from unsafe channel list.
    • We should test hveto with some channel lists.

20200604 (Thu.)

• Agenda
  • LVK white paper
  • O3GK analysis
• Minutes
  • LVK white paper
    • Operations white paper

      • 2. Observatory Operations
        3. Detector Commissioning
        4. Calibration
        5. Detector Characterization
        6. Computing and software

    • Observational Science white paper

      • 1.1 Burst
        1.2 CBC
        1.3 CW
        1.4 Stochastic
        2 Burst
        3 CBC
        4 CW
        5 Stochastic
        6 Burst+CBC+DetChar Joint Activity Plans
        7 Burst+CBC Joint Activity Plans
        8 Burst+Stochastic Joint Activity Plans
        9 Stochastic+CBC
        10 Stochastic+Detchar

20200521 (Thu.)

• Agenda
  • Talk plans for JPS meeting
  • PTEP paper
  • O3GK analysis
• Minutes
  • Talk plans for JPS meeting
    • TY will give a DET summary talk.
    • Deadline 4th June.
  • PTEP paper
    • Writing draft was finished.
    • After checking the whole, draft will be submitted to CPC.
  • O3GK analysis
    • Segment information is being reprovided as Science, Locked , Unlock, and OMC Overflow.
    • Omicron triggers will be regenerated with new segment information.
    • hveto will be applied after generating Omicron triggers with new segment and configurations.
    • O3GK data is available on the KISTI cluster.
    • Bug fix is required for using CAGMon.

LVK 20200518/19 (Mon./Tue.)

• Agenda

20200514 (Thu.)

• Agenda
  • PTEP paper
  • Regenerate segment information
  • Regenerate omicron triggers

  • SummaryPage stability

  • Activities on KISTI
• Minutes

20200507 (Thu.)

• O3GK DetChar analysis

  • KAGRA DQ flags/segments
  • Glitch searches
  • Burst trigger veto
  • GEO DQ flags/segments
• Minutes
  • KAGRA DQ flags/segments
    • Reproducing OMC overflow segments
    • Overflow segments are provided as separately from Science mode

    • 'SegmentList_locked_UTC_***.txt' is expired.

    • Reproduced segments information should be uploaded to DQSEGDB
  • Glitch searches
    • Omicron configuration should be reoconsidered
    • Triggers will be regenerated with new configurations
    • Discussion of configuration (chunk-size, intervals...) is ongoing.
  • Burst trigger veto
    • All cWB triggers are not vetoed by hveto
    • cWB has some problems(?)
    • Omicron parameter should be considered again.
  • GEO DQ flags/segments
    • GEO people are now providing new frames including both the strain signal and important auxiliary channels.
    • GEO frames will be transferred form CIT to Kashiwa (and Kashiwa to KISTI?)
    • Omicron can be used on KISTI cluster
    • We need the information about the amount of data.
    • CAGMon results will be also available in near future.

20200423 (Thu.)

• Irregular meeting / Agenda:

  • 17:00-, zoom 2 https://zoom.us/j/6676627462

  • Participants: Kozakai, Ochino, Kokeyama

Minutes

• How to manage a DQ check for event alerts

  • Shall we make a proper data quality report for each event? => after collecting information we will make a report and put on JGW doc

  • Does ligo have the template to be sent to segdb? => to be checked

  • For now, we make a dedicated wiki page
    • list a specific check list: For GRB200415A, check resG condition, check if OMC PD A was overflow or not
  • Share Detchar info with CAL, BURST, DMG
• How to organize RRT for the next obs

20200416 (Thu.)

• Agenda:
  • Run status
  • DQ Shift
  • KISTI activities

20200402 (Thu.)

• Agenda:
  • File server status

    • SummaryPage

    • Omicron trigger generation
    • Segment Information
    • KISTI results capability
  • Observing run

    • GlitchPlot for burst analysis

    • DetChar DQ shift

  • Update for O4 plan

20200326 (Thu.)

• Agenda:
  • Commissioning situation
    • Commissioning test will be continued until Mar. 31st
    • During Apr. 1st to 7th, engineering run will be performed.
    • After Apr. 7th, we have a two weeks observing run (only KAGRA)
    • If LIGO, and Virgo will come back to observing run, we will aim to join O3.

  • SummaryPage (RAID trouble)

    • File server has a disk problem.
    • RAID system is now being rebuilt. (It will be finished today's evening.)

  • GlitchPlot for Burst evnet triggers

    • JGW-G2011571

  • DetChar pipelines on KISTI

    • Code update of CAGMon

20200312 (Thu.)

• Agenda:
  • Current status of site (commissioning) activities
    • Commissioning break was started from 10th Mar. It continues until 24th Mar.
    • Joinning O3 should be discussed on JRPC meeting on 26th Mar.(?).
  • Update of DQ state vector
    • Science mode during 25th Feb. - 10th Mar. didn't include SDF flags.
    • I updated to contain the SDF flags as the one of the condition of the Science mode.

  • Automation plan of GlitchPlot for GW event alert

    • We plan to move GlitchPlot from ICRR cluster to Kamioka computers.

    • Requirement:
      • Disk: 100MB/event
      • CPU: ???
  • Data transfer to KISTI
    • ER on Dec. data was transferred.
    • Many tools is already available on KISTI cluster.
  • Announce about LVK session

    • We plan to have DetChar telecons instead of LVK meeting.

    • TY circulate concrete date and time on ML after deciding.

20200305 (Thu.)

• Agenda:
  • Observing run status
    • Binary range is ~400kpc (Best is 500kpc.)
    • Trigger rate check
      • Quite difference Trigger rate between the strain signal and the error signal.
    • Glitch plot with Burst triggers.

  • SummaryPage troubles

    • Some process (LSC.ini) was frequently stopped.
  • RRT tools
    • Shinkai-san suggested us it's better to prepare the dedicated workstation and mail address.
    • RRT tools from medm interface is available at Kamioka site
    • LValert can be receive alert from GraceDB.
      • Event information is not enough (no mass parameter).
      • Tagoshi-san tested on Kashiwa server.

20200227 (Thu.)

• Agenda:

  • SummaryPage trouble

    • Configuration file errors -> fixed and checking now (Oshino-san)

    • Past two day's pages will be regenerated.
  • RRT

    • Short-time SummaryPage generator tool on MEDM.

    • lvalert may be already available for KAGRA.
    • We can receive RRT call by setting 'GCN PRELIM SENT'.
  • DQ shift
    • This taks should be assigned for collaborator shift.
    • TY will discuss this issue with Miyoki-san.

20200130 (Thu.)

• Agenda:
  • KAGRA Readiness
  • RRT shift
  • PEM DQ flags

20200116 (Thu.)

• Agenda:
  • Minimum goal of KAGRA readiness issue
    • State Vector definition

      • goal: send K1:DET-DQ_STATE_VECTOR

      • status: Done.
    • DQSEGDB capability
      • goal: send OBSERVATION segment
      • status: 95%
        • Automation should be done. (will be done by Robert)
    • Web page preparation

      • goal: publish SummaryPage

      • status: Done.
    • DQ event validation
      • under discussion

        • Probably we cannot provide so many veto segments.
          So at least one (hopefully a few) simple segments will be provided and uploaded.
          (e.g. Omicron triggered segments, Earthquake segments, etc.)

    • GraceDB issue
      • under discussion

        • Full(?) access to GraceDB is opened for KAGRA people.
          Developing/importing GraceDB API tools is better to be done with DET and DAWG.

20200109 (Thu.)

• Agenda:
  • KAGRA readiness issue
    • State Vector definition
      • SV is provided on the real-time IFO control model.
      • SV is contained in both raw frames and low-latency frames.

      • SV definition is summarized on Wiki and kept as latest information.

      • Finally it should be summarized as a tech-report.
    • DQSEGDB capability
      • Segment files are provided on the Kamioka and Kashiwa servers.
      • Files will be shared with LV by rsync+ssh method.
      • Accessing gwdet.icrr.u-tokyo.ac.jp from LIGO's DQSEGDB was already successfully.
    • Web page preparation

      • SummaryPage is opened also for remote site people.

      • Contents are being closed to LIGO's SummaryPage contents.

      • TY and Alex are now updating some softwares on k1sum0. So SummaryPage may become unstable next couple of days.

    • DetChar/DQ event validataion
      • We are now planning to provide DQ flags indicating earthquake, loud seismotion, etc. (See Kozakai-san's slide)
      • These information are shared with LV via DQSEGDB.
    • Low-Latency tools and GraceDB issues
      • Some tools used as low-latency ones in LIGO (Omicron, hveto etc.) are available.
      • We are waiting for the update of GraceDB authentication by LIGO.

  • Offline DQ Slides

  • E-run analysis (washimi) Slide

Past meeting

• 2020

• 2019