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

20210107 (Thu.)

Agenda
- Progress of O3GK analysis
- O4 preparation

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

Meetings

Agenda & Minutes

20210107 (Thu.)

20201224 (Thu.)

20201203 (Thu.)

20201126 (Thu.)

20201119 (Thu.)

20201111 (Thu.)

20201103 (Thu.)

20201022 (Thu.)

20201008 (Thu.)

20201001 (Thu.)

20200924 (Thu.)

20200911 (Thu.)

20200903 (Thu.)

20200827 (Thu.)

20200806 (Thu.)

20200730 (Thu.)

20200723 (Thu.)

20200702 (Thu.)

20200625 (Thu.)

20200618 (Thu.)

20200610 (Thu.)

20200604 (Thu.)

20200521 (Thu.)

LVK 20200518/19 (Mon./Tue.)

20200514 (Thu.)

20200507 (Thu.)

20200423 (Thu.)

Minutes

20200416 (Thu.)

20200402 (Thu.)

20200326 (Thu.)

20200312 (Thu.)

20200305 (Thu.)

20200227 (Thu.)

20200130 (Thu.)

20200116 (Thu.)

20200109 (Thu.)

Past meeting