ryan.crouch@LIGO.ORG - posted 16:06, Saturday 12 July 2025 - last comment - 17:07, Saturday 12 July 2025(85711)
OPS Saturday EVE shift start
TITLE: 07/12 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Observing at 144Mpc
OUTGOING OPERATOR: Ryan S
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 14mph Gusts, 9mph 3min avg
Primary useism: 0.03 μm/s
Secondary useism: 0.10 μm/s
QUICK SUMMARY:
- We've been locked for just over 4 hours
- We had our best range ~30 minutes after locking, I can see ZM4 is drifting a bit mostly in P, but the angle is probably not optimized for being fully thermalized as the ANG servo isn't being used right now
- The calibration measurement was not run due to a lockloss, if LLO loses lock I'll drop observing and run the measurement
- The SQZ_PMC GRD is reporting the PMC PZT volts are low
Images attached to this report
Comments related to this report
We dropped observing from 00:01 - 00:05 UTC from the SQZer's PMC losing lock, it relocked with a much higher/better voltage. I wanted to adjust the OPO temp then run a scan SQZ_ANG but I didn't notice that GRD IFO was in AUTO so it brought us back as soon as the SQZer relocked after I had done a few steps of the OPO, the range is a couple Mpc better now though.