ryan.crouch@LIGO.ORG - posted 20:01, Wednesday 09 August 2023 - last comment - 09:55, Thursday 10 August 2023(72120)
OPS Wednesday Eve mid shift update
STATE of H1: Observing at 144Mpc
Wind: 29mph Gusts, 23mph 5min avg
We've been locked for 2:45, we reached 159.15 Mpc for a minute! The wind and accompanying ground motion has been increasing the past 2 hours.
Dropped out of observing at 03:47UTC from the squeezer losing lock, back into observing 03:50UTC after it relocked
This SQZ lockloss was because the OPO PZT bottomed out ~40V, so this is an known/expected reason for the squeezer to relock. See attached trends of squeezer relocking.