thomas.shaffer@LIGO.ORG - posted 07:38, Wednesday 05 November 2025 - last comment - 08:33, Wednesday 05 November 2025(87968)
Ops Day Shift Start
TITLE: 11/05 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Lock Acquisition
OUTGOING OPERATOR: Ryan S
CURRENT ENVIRONMENT:
SEI_ENV state: USEISM
Wind: 11mph Gusts, 6mph 3min avg
Primary useism: 0.03 μm/s
Secondary useism: 0.60 μm/s
QUICK SUMMARY: Lost lock about an hour ago, trying to lock DRMI now. Had two lock losses and relocked during the last shift. Looks like the MSR WAP is stuck. Stand down query failure, I'll restart that now. The useism is up again, somehow we locked last night though. Today's plan is to Observe!
Just lost lock at Close_Beam_Diverters. We had two successful relocks last night that went through this state just fine, so I hoped this would go well again today. I'll step through close beam diverters next time.
We tend to have more automated relocks at night, and I wonder the eleveated 1-3Hz ground motion that we see during the day might be shaking us just enough during the day.