Meeting in 2021

Contents

Meeting in 2021
1. Agenda and Minutes

Agenda and Minutes

20211213 (Mon.)

Agenda
- KAGRA f2f meeting
- 120Hz glitches
- DQR progress
- DQ flags for O4
- Authorship 2021 (Jan. - Dec.)
Minutes
- KAGRA f2f meeting
  - DET has one slot in an OpsDiv session.
  - But TY cannot attend f2f meeting various reasons.
- 120Hz glitches
- DQR progress
- DQ flags for O4
- Authorship 2021 (Jan. - Dec.)
  1. Commissioning support, include serving data monitoring tools for site commissioners. [Commissioning Support]
  2. Production and validation of Online Data Quality State Vector for O3GK searches, and as O4 preparation [Online DQSV]
  3. Production and validation of Segment information for O3GK searches, O3 open data and O4 preparation [Segment/DQSEGDB]
  4. DQ event validation for O3GK searches. [DQ event validation]
  5. Contraction of DQR and igwn-alert framework for O4 RRT activities [DQR/RRT]
  6. Managing and developing the computer environment for sharing DET information among LVK. [Status Web pages]
  7. Preparation of Data Category flags for O4 joint observing run. [Data Category]

20211206 (Mon.)

Agenda
- KAGRA f2f meeting (See [kagra 04756] Reminder: Dec 2021 remote F2F Registration Open)
- 120Hz glitches
- DQR progress
- DQ flags for O4
Minutes
- 120Hz glitches
- DQR progress
  - klog#19074
- DQ flags for O4

20211129 (Mon.)

Agenda:
- JPS meeting
- KAGRA f2f meeting
- 120Hz glitches
- DQR progress
- DQ flags for O4
Minutes:
- JPS meeting
  - KAGRA Status => T. Yamamoto
  - DQR progress + DET status => H. Yuzurihara
  - DET related?
- KAGRA f2f meeting
  - DET status in Ops (DAC?) session => Not decided yet.
- 120Hz glitches
  - Kihyun can report next week
- DQR progress
  - klog#19026
  - igwn-alert test is ongoing.
    - Installation was finished.
    - We need a new authentication system in order to access alert information.
- DQ flags for O4
  - No info sensors available yet.
  - PEM sensors? => Yokozawa-san will summarize
    - sensor noise level
    - stability/statistics
    - glitches/lines

20211122 (Mon.)

Agenda
- Investigation about 120Hz glitches
- Segments for Open data
- Progress of DQR
- Site commissioning
- Report from LVK DAC telecon
Minutes
- Investigation about 120Hz glitches
  - No updates in this week.
  - Next step is checking other all channels one by one. => Kihyun
- Segments for Open data
  - Checking decimation effect for 4kHz h(t) was done.
  - The provision of information form DET has been finished.
  - Review process has also been done. (by Hirotaka) review page
- Progress of DQR
  - We need to wait some time about authentication issue.
  - Test of igwn-alert in Python3 is ongoing (klog18966)
  - Installation is done. (work log)
  - Next step is to receive realistic alert and launch DET tools via LV(K?) MDC. => Hirotaka
- Site commissioning
  - X-arm cavity was locked with GR laser frequency in air (a few minutes) (klog#18921)
    - We can see the continuous flash on GigE camera at TMSX.
    - Error signal of Green PDH is K1:ALS-X_PDH_MIXER_DAQ_OUT_DQ
  - Y-arm laser was also reach Y-end (PD and camera) (klog#18952)
    - ETMY damping is the next step for detecting reflected light at ETMY.
- Report from LVK DAC telecon
  - In order to integrate KAGRA's data for low-latency searches, we need reliable DQ flags.
    - Well known auxiliary (witness) sensors
    - Well known coupling mechanism
    - Suitable threshold in statistically
    - See also LIGO Wiki about DQ flags.

20211115 (Mon.)

Agenda
- O3GK Glitch investigation
- Segment information for open data
- Progress of DQR
- Site commissioning
Minutes
- O3GK Glitch investigation => Skipped.
- Segment information for open data
  - Data reproduction with correct segments were finished.
  - We need to check about error estimation of 4kHz downsampled data. => TY
  - Data will be release at the same time with O3GK paper.
- Progress of DQR
  - LValert was update as python3 in LIGO.
  - We also need to move new version for O4.
  - Software test will be conducted on k1det0,1 => HY
- Site commissioning
  - PSL room is now in working mode for future works.
    - PMC, PLL, IMC signals are affected by sound noise.
  - Glitches on MC OpLevs were decreased by wind shields.
    - before -> after
    - Noise floor level was also improved. (klog#18756)
    - Alignment jump by seismic disturbance in high frequency (1Hz~) still remains.
      - We need to take care about K1:VIS-MC{I,E,O}_TM_WIT_{P,Y} and K1:IMC-IMMT1_TARNS_QPDA1_DC_{PIT,YAW}_OUT
    - Plot range should be changed on SummaryPages. => SO

20211108 (Mon.)

Agenda
- O3GK Glitch investigation
- Segment information for open data
- Progress of DQR
Minutes (Yuzurihara)
- O3GK Glitch investigation (Kihyun)
  - Kihyun checked the omega-scan at the time of glitch. slide (see the last three slides)
  - There is no glitches in these channels at the same time of the glitch.
- Segment information for open data (Uchikata)
  - They checked which data segments were used for GRB analysis. The correct DQ segment was used for GRB analysis.
  - For some reason, the wrong segment information was used for open data.
  - The reproduction of open data is on-going. The data set needs the review again.
- Progress of DQR (Yuzurihara)
  - Recently the new feature to archive the parallel process was added in TaskManager.
  - Yuzurihara is testing this feature to apply KAGRA data.

20211101 (Mon.)

Agenda
- O3GK noise budget paper JGW-P2113405-v1
- hveto, O3GK glitches
- Info. for open data
- Progress of DQR
Minutes
- Info. for open data
  - We should refer segments on DQSEGDB
  - For GW searches: K1-SCIENCE_MODE, DET_FOR_GRB200415A
  - We need to check [1270965983, 1270976372) and [1270976435, 1270976783).

20211025 (Mon.)

Agenda
- Omicron glitches (40?, 120Hz)
- DQR slide
Minutes
- Omicron glitches
  - ALS channels has some coincidence.
    - Cavity and suspensions are shared GR and IR lasers.
    - It's not identified the cause (GR laser or suspensions) yet from current results.
  - Chamber ACC at EXC has also same glitches.
    - hveto cannot detect coincidence on EYC and other ACC channels.
    - These channels also checked by Omega-scan once => Kihyun.

20211011 (Mon.)

Agenda
- site commissioning
- omicron/hveto analysis
- DQR
Minutes
- site commissioning
  - MC OpLev glitches (klog#18518)
  - PLL resonance (klog#18466)
  - IX MN glitches vanished(?) (klog#17876)

20210927 (Mon.)

Agenda
- hveto analysis
- O4 commissioning
- progress of DQR slide
Minutes
- hveto
  - glitch rate was computed for O3GK paper JGW-D2113311
  - Clustering (with 0.1s window) was performed on gwpy function
- O4 commissioning
  - Commissioning is now pending and suspension health check is ongoing.

20210906 (Mon.)

Agenda
- hveto analysis
- O4 commissioning
- JPS meeting
Minutes
- O4 commissioning
  - Turn on the clustering option of Omicron (k-log#18070)
  - periodic glitches are happening in ITMX (klog#17876)
    - These glitches seems to be correlated to IXV temperature (#17912)
    - To find the source of ITMX glitches, there is a investigation (#17980)
    - Update of summary page : Added ITMX signals for glitch pipeline (k-log#18112)
  - Implementation of GAS DC control for ITMX (k-log#18153)

20210830 (Mon.)

Agenda
- hveto analysis
- O4 commissioning
- O4 readiness
Minutes
- hveto analysis
  - veto segment list will be shared. => Kihyun
- O4 commissioning
  - PLL noise (klog#18014)
  - periodic glitches are happening in ITMX (klog#17876)
    - These glitches seems to be correlated to IXV temperature (#17912)
    - To find the source of ITMX glitches, there is a investigation (#17980)
  - MCi and MCo pitch strange behavior (k-log#18027)
  - Glitch investigation by Omicron
    - If there are many sources of glitches, information about small change in glitch rate is helpful to noise hunting.
    - ITMX PS should be added on SummaryPages => Oshino
    - And also we should set 0.1s clustering option as the first test for Omicron process.
    - In pyomicron, 0.1s clustering is default settings and pyomicron is available in igwn.
- O4 readiness
  - #15 [Cont'd] State Vector Definition
    - Responsible: T. Yamamoto -> T. Yamamoto
  - #16 + #20 Segment production with short latency
    - Responsible: K. Kokeyama -> S. Oshino, T. Yamamoto
  - #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 -> K. Ueno, T. Yamamoto
  - #19 [Cont'd] GraceDB
    - Responsible: H. Tagoshi -> H. Tegoshi(?)
  - #21 [New] Data Category (at least CAT1) production
    - Responsible: N. Uchikata(?)
  - #22 [New] RRT contribution
    - Responsible: H. Yuzurihara
- Taks list of DetChar
  - We need to set concrete task list for authorship issue. (within 1 month?) => Yamamoto
  - Time line of each tasks also should be decided => Yamamoto & each responsible person
  - After creating the draft version of task list and time line, they will be shared on DET telecon.

20210823 (Mon.)

Agenda
- hveto analysis
- O4 commissioning & preparation
- f2f meeting
Minutes
- hveto analysis
  - O3GK 2 weeks data was analyzed with new configuration.
  - Blip, LF burst were found in many times.
  - All vetoed segments will be shared soon.
- O4 commissioning
  - IMC commissioning is on-going
    - beam shape of transmitted beam at MCE is not clear circle. It looks like ellipse.
    - Now Kenta Tanaka and I are investigating the cause. If the cause is happening outside of mode cleaner, we can do something to remove the cause.
    - From the last week investigate, we are doubting it is ghost beam. k-log k-log k-log
  - VIS commissioning
    - VIS team is working the implementation of dumping filter, which is called local dumpling. Now they are discussing about the evaluation of the requirement value for dumpling.
    - Many glitches in the feedback signal were observed. k-log
- f2f meeting
  - Status talk of DAC/DET (28th Sat. 9:00~?)
    - => Yamamoto
  - Contribution talks
    - Pastavi development (poster) => Yuzurihara
    - Gaussianity search (poster) => Morisue

20210816 (Mon.)

Agenda
- hveto analysis
- O4 commissioning
- KAGRA readiness
- f2f meeting
Minutes
- hveto analysis
  - various clustering
    - (0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0)
  - old results
    - (0.1, 0.2)
- O4 commissioning
  - FNC instability (klog#17748, klog#17865)
    - We are not investigating the cause of instability of Michelson fringes of FNC (green laser)
    - Fiber coupling at PSL room is the most reasonable candidate.
    - We need to investigate temperature environment around green laser more detailed.
  - MN Photo sensor noise (klog#17876)
    - It doesn't seem to be not a real ground motion because upper stage isn't shaked.
    - We doubt the electrical noise now.
    - O4 readiness
- O4 readiness
  - #15 [Cont'd] State Vector Definition
    - Responsible: T. Yamamoto -> T. Yamamoto
  - #16 + #20 Segment production with short latency
    - Responsible: K. Kokeyama -> S. Oshino, T. Yamamoto
  - #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 -> K. Ueno, T. Yamamoto
  - #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

20210802 (Mon.)

Agenda:
- hveto analysis
- O4 commissioning and preparation
- Hardware injection plan during O4
- KAGRA O4 readiness
- Proposal of O3GK DetChar paper slide
Minutes:
- hveto analysis
  - clustering test
    - Round winer doesn't change by clustering option.
    - Some kind of clustering is necessary but best parameter is not clear yet.
    - Kihyun will share the event time of clustered events.
    - We should check each event by spectrogram, Omega-scan, etc.
    - hveto with clustering will be also performed for 2 weeks day.
- O4 commissioning
  - Omega-scan on Kashiwa has some error now. And
- Hardware injection plan during O4
  - KAGRA CAL group is now gathering the plan of HWI during observations.
  - In LIGO case, in order to do HWI during obs., they need special and reasonable reasons.
  - KAGRA CAL also plan to adopt same procedures of the HWI management as LIGO.
  - If you have any HWI plan related to DET activities pls. share in DET telecons once.
  - We would like to discuss that the requested plans should be conducted during ER or obs.
- O4 readiness
  - #15 [Cont'd] State Vector Definition
    - Responsible: T. Yamamoto -> T. Yamamoto
  - #16 + #20 Segment production with short latency
    - Responsible: K. Kokeyama -> S. Oshino, T. Yamamoto
  - #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 -> T. Yamamoto
  - #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

20210726 (Mon.)

Agenda:
- hveto analysis
- O4 commissioning
- O4 readiness
Minutes:
- hveto analysis
  - Analyses with various clustering parameter are in progress. Kihyun will report in next telecon.
- O4 commissioning
  - no updates
    - SummaryPages
    - lvalert
    - DET cluster
- O4 readiness
  - It is preferable that the same person does not become multiple responsible person
  - As WP2021, DET tasks which is taken into account an effort follows readiness issues.
  - #15 [Cont'd] State Vector Definition
    - Responsible: T. Yamamoto -> T. Yamamoto
  - #16 + #20 Segment production with short latency
    - Responsible: K. Kokeyama -> S. Oshino, T. Yamamoto
  - #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

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})
    - Unstational noise excess on Green laser above 100Hz still exists (K1:ALS-
- O4 readiness
  - #15 [Cont'd] State Vector Definition
    - Responsible: T. Yamamoto -> T. Yamamoto(?)
  - #16 + #20 Segment production with short latency
    - Responsible: K. Kokeyama -> S. Oshino, T. Yamamoto
  - #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(?)

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.
    - LIGO Git
    - 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 (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
  - plot
- 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
  - draft
- 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
  - 2021
  - 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, 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.

KAGRA/Subgroups/DET/Meeting/2021 (last edited 2022-01-06 16:22:55 by TakahiroYamamoto)