ryan.crouch@LIGO.ORG - posted 10:19, Wednesday 01 November 2023 - last comment - 16:39, Wednesday 01 November 2023(73903)
Lockloss at 19:29UTC
We were only locked for 1:08, lockloss at 19:29UTC. ITMX was the first suspension to saturate right before the LL and there was a 500Hz oscillation in LSC-DARM which was probably the violin modes.
Recovered NLN at 18:22uTC, back into observing from 18:42 till 19:14
I'm beginning to think that this may have been caused by the SOFT Yaw loops. The quads see some type of deflection in their master out before the LSC DARM channel sees anything, and I tracked it down to SOFT Y so far. I'll do some more digging on this tomorrow and see if I can keep following this thread.