TITLE: 11/04 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Microseism
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY: Currently still trying to relock, and at POWER_25W. All day we've been working on getting back up, but the secondary microseism is so high. It is slowly coming down though. At one point, we were in OMC_WHITENING for over an hour trying to damp violins so we could go into NLN, but we lost lock before we could get there.
LOG:
15:30 In DOWN due to very high secondary useism
15:38 Started relocking with an initial alignment
- When we got to PRC, I had to do the Pausing-PSL_FSS-Until-IMC-Is-Locked thing again (see 81022)
- 16:04 Initial alignment done, relocking
- Lockloss from ACQUIRE_DRMI_1F, OFFLOAD_DRMI_ASC, ENGAGE_ASC_FOR_FULL_IFO, TRANSITION_FROM_ETMX
- 18:07 Sitting in DOWN for a bit
- 18:45 Started relocking
- More locklosses
- 21:48 Lost lock after sitting in OMC_WHITENING damping violins for over an hour
- More trying to lock and losing lock
Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
---|---|---|---|---|---|---|
17:37 | PEM | Robert | CER | n | Improving ground measurement | 17:44 |