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| ||4. || Check Lockloss data || See https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/today/ <<BR>>We can get the GPS time list at lockloss (GPS end)|| ||5. || DetChar Reports during ER1 || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12282 | klog12282]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12275 | klog12275]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12264 | klog12264]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12257 | klog12257]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12205 | klog12205]]|| |
||4. || Check Lockloss data || See https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/today/ <<BR>>We can get the GPS time list at lockloss (GPS end). See below for more challenging characterization.|| ||5. || Check the input power|| The EPICS channel showing the input power is K1:LAS-POW_IMC_DC_OUT_DQ|| ||6. || DQ shift Reports || Post the findings on klog, for example, [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12282 | klog12282]]|| |
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| === Additional trial === * '''Check Sensitivity & Binary range transition''' Let's investigate the noise source which caused such a transition. Open sitemap and access [sitemap] -> [DetChar] -> [Bruco] (See [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9081|JGW-G1809081]]) * '''Check Spectral line noise''' Let's investigate the frequency, stability with more fine frequency resolution. Open sitemap and access [sitemap] -> [DetChar] -> [Mnitors] -> [DARM lines] * '''Check Lockloss data''' Let's investigate the localsss causes. Open sitemap and access [sitemap] -> [DetChar] -> [Lockloss] |
=== Additional DQ challenge: Lockloss investigation === If you have time, please try to find the cause of lockloss by checking the following important channels! |
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| === New suggestions for Detchar shift === You should change the interferometer state from ‘Locked’ to ‘Observing’ before checking the below details: * Summary * Has the average range changed significantly? * Is the number and character of the range drop events, significantly differ? (To check how each range drop event behaves) * Are there any significant changes in the glitchgram? * Is any new or unexpected noise visible in the h(t) spectrogram? * Are there any anomalies in the glitch rate for loud glitches? * Lock/Sensitivity/glitches * Is there anything unusual in the hourly glitchgrams? * Lock/Sensitivity/strain * Is there anything unusual in the hourly h(t) spectrograms? * SEI/Ground/BLRMS_overview * Do any seismic gestures (earthquakes, anthrogrogenic etc..) appear to correlate with noise in h(t)? * PEM - all but especially seismic and acoustic * Are there any significant changes, especially new features, in the PEM channels? * Hveto * Hveto finds correlations between the h(t) glitches and glitches in other channels. Classes of glitches that might have the same cause are thus identified. “Significance” measures the strength of a correlation. Are any of the most significant channels different from those of the previous days or shifts? * Fscan Check for a new or disappeared lines, note down line information such as frequency, transition time |
* Did any suspensions move drastically? * Check the following oplev channels: * K1:VIS-{PRM, PR2, PR3, BS, SR3, SR3, SRM, ITMX, ITMY, ETMX, ETMY}_TM_OPLEV_{PIT, YAW}_DIAG_DQ (urad) for large suspensions. * K1:VIS-{MCI, MCO, MCE, IMMT1, IMMT2, OMMT1, OMMT2, OSTM}_TM_OPLEV_{PIT, YAW}_OUT_DQ (not calibrated in urad) for type-C suspensions. * Did any error signals have obvious glitch? * Error signal channels are K1:LSC-{DARM, MICH, PRCL, MCL}_IN1_DQ. * Did POP90I buildup (the sideband buildup within the power-recycling cavity, PRC) degrade before lockloss? * Which arm did start degrading first? |
DQ Shift checklist
Task No. |
Theme |
Substance |
1. |
Check SummaryPage works or not |
See https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/monitoring/ |
2. |
Check Sensitivity & Binary range transition |
See https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/today/ |
3. |
Check Spectral line noise (Yesterday) |
See https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/yesterday/detchar/fscan/ |
4. |
Check Lockloss data |
See https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/today/ |
5. |
Check the input power |
The EPICS channel showing the input power is K1:LAS-POW_IMC_DC_OUT_DQ |
6. |
DQ shift Reports |
Post the findings on klog, for example, klog12282 |
Additional DQ challenge: Lockloss investigation
- If you have time, please try to find the cause of lockloss by checking the following important channels!
- Did any suspensions move drastically?
- Check the following oplev channels:
- K1:VIS-{PRM, PR2, PR3, BS, SR3, SR3, SRM, ITMX, ITMY, ETMX, ETMY}_TM_OPLEV_{PIT, YAW}_DIAG_DQ (urad) for large suspensions.
- K1:VIS-{MCI, MCO, MCE, IMMT1, IMMT2, OMMT1, OMMT2, OSTM}_TM_OPLEV_{PIT, YAW}_OUT_DQ (not calibrated in urad) for type-C suspensions.
- Check the following oplev channels:
- Did any error signals have obvious glitch?
- Error signal channels are K1:LSC-{DARM, MICH, PRCL, MCL}_IN1_DQ.
- Did POP90I buildup (the sideband buildup within the power-recycling cavity, PRC) degrade before lockloss?
- Which arm did start degrading first?