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 or saturation?
- 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?