ryan.crouch@LIGO.ORG - posted 08:04, Wednesday 30 August 2023 - last comment - 10:40, Wednesday 30 August 2023(72546)
OPS Wednesday day shift start
TITLE: 08/30 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 143Mpc
OUTGOING OPERATOR: TJ
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 15mph Gusts, 10mph 5min avg
Primary useism: 0.03 μm/s
Secondary useism: 0.07 μm/s
QUICK SUMMARY:
- We've been lcoked for 11:00, in observing since 13:05UTC, there was a dropout at 13:02UTC from syscssqz, susfc2, and ascsqzfc diffs
- CDS/VAC/SUS/Dust looks good
- R0 water is alarming
We dropped Observing at 15:16 from the squeezer losing lock, back in Observing at 15:18
Squeezer kept losing lock, eventually it gave the message ISS is off check alog 70050, which I did and followed the instructions and set opo_grTrans_setpoint_uW to 60. I accepted the new OPO_TEC_temp in SDF and brought us back to Observing at 16:03
FC1 seems to have some strange things going on; from screenshot, see the circled FC1_M1_OSEMINF_T3_INMON, which seem to have changed behavior in the past 12 hours, and we see exces smotion in FC1_M1_DAMP_P/R/V, compared to the previous/normal locks.
On FC GREEN trans camera, the beam spot appears visibly dithering in pitch while it is locked. No input suspension ZM1/2/3 or FC1/2 see dithers running, but the DAMP filters on FC1 all seem to have a lot of motion, even with the FC is unlocked.