TITLE: 12/03 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 157Mpc
INCOMING OPERATOR: TJ
SHIFT SUMMARY: Currently Observing at 157Mpc and have been Locked for 4.5 hours. Today we had some trouble getting DRMI to lock, and a lockloss from TRANSITION_FROM_ETMX, but nothing too difficult to fix and bypass.
LOG:
15:30 Observing at 157Mpc and have been Locked for over 2 hours
16:33 Out of Observing for Commissioning
16:58 Lockloss due to commissioning activities
- During relocking, stopped at DRMI_LOCKED_CHECK_ASC because SRM M3 and M1 LF/RT were railed. Clearing SRCL1 history fixed M3, but not M1 LF/RT. We cleared the history on the M1 locking filters, leading to a lockloss and SRM trip. This issue happened because during the commissioning before the lockloss, SRM was accidentally moved so far out of alignment that during DRMI, ISC_LOCK thought that the lock it caught was DRMI when it was actually PRMI, which caused it to push super hard on SRM
- Lockloss from LOWNOISE_ESD_ETMX
- Next time we finished TRANSITION_FROM_ETMX, I waited 9 seconds after it completed before moving on to LOWNOISE_ESD_ETMX
- Multiple locklosses from lower states like ALS and IR
20:02 NOMINAL_LOW_NOISE
20:08 Observing
Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
---|---|---|---|---|---|---|
16:16 | FAC | Karen | OptLab/VacPrep | n | Tech clean | 16:42 |
18:05 | FAC | Karen | MY | n | Tech clean | 18:58 |
18:54 | VAC | Jordan, Gerardo | LVEA | n | Moving leak cart | 19:33 |
22:34 | RyanC | OpticsLab | n | Testing blues | 23:36 | |
23:15 | FAC | Tyler | Along XARM | n | Taking inventory | 00:29 |