thomas.shaffer@LIGO.ORG - posted 09:13, Wednesday 08 November 2023 - last comment - 11:42, Wednesday 08 November 2023(74091)
Observing 1710 UTC
Back to Observing after a rough night of earthquakes. Lock acquisition was fully automated which is fantastic to see after large earthquakes!
Our range looks a bit lower over the past 24 hours. Power recycling gain seems to be lower than normal as well. Doesn't seem to be correlated with the higher microseisms that we've been seeing (see attached).
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The peak-to-peak values of the power recycling gain are also almost 3x what they are when the recycling gain is higher.
The last several locks, the PRG has been about 47. We're usually closer to 51, so this is certainly something to look at.