ryan.short@LIGO.ORG - posted 16:01, Monday 22 May 2023 (69787)
Ops Day Shift Summary
TITLE: 05/22 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
SHIFT SUMMARY:
Locking:
- DRMI was struggling to lock this morning; two attempts where SRC1 wasn't converging and we couldn't hold it
- 15:50 - Opting for a SRC alignment to see if that helps
- 16:21 - Manually aligned SRM as Automated SRC align wasn't doing well enough; now trying DRMI locking again
- 17:00 - DRMI ASC still wasn't working; hand aligned PRM and SRM to maximize POP18 and minimize POP90
- 17:21 - DRMI ASC worked, moving up
- 17:57 - Nominal Low Noise
- 18:23 - Observing
- 19:04 - Dropped Observing for 26 seconds from H1:CAL-INJ_CW_GAIN going to 0, then back to 1 just 10 seconds later
- 20:27 - Lockloss from PI mode 29 ringup
- 21:00 - TJ and I notice that PR3 drifts during lock and slowly moves back at lockloss. TJ moved PR3 slightly to improve ALS flashes
- 21:41 - High wind has made locking challenging
- 22:20 - Running initial alignment to test some automation; might as well since winds are too high to lock
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 09:36 | ifo | Jenne | Italy | n | locking | 10:31 |
| 15:25 | FAC | Kim | Opt Lab | - | Technical cleaning | 17:37 |
| 16:02 | FAC | Mitch, Randy | Ends | - | Wind fence checks | 19:01 |
| 17:38 | FAC | Kim | MX | - | Technical cleaning | 18:19 |
| 17:38 | FAC | Cindi | MY | - | Technical cleaning | 18:38 |
| 20:09 | FAC | Ken | Carpenter Shop | - | Replacing lights | 22:09 |
| 20:50 | EE | Fil | EY | - | Staging equipment | 21:31 |
| 20:52 | SQZ | Vicky, Naoki | LVEA | - | Clean up SQZ area | 21:03 |
| 20:56 | VAC | Travis, Janos | CER | - | Grabbing particle counter | 21:04 |