Reports until 03:00, Tuesday 01 July 2025
H1 SQZ
oli.patane@LIGO.ORG - posted 03:00, Tuesday 01 July 2025 (85452)
Ops OWL Intervention pt 2

Called again due to SQZ being unlocked, keeping us out of Observing. SQZ MANAGER was stuck in LOCK_LO_FDS with the message "Beam diverter is open but no 3MHz on OMC, could be an alignment problem". Referencing my alog 82039 from December (I realized after that I should've also been looking to maximize H1:SQZ-OMC_TRANS_RF3_DEMOD_RFMON while adjusting sliders) when Vicky helped fix this issue, I trended back ZM4 and ZM6 and noticed that they had moved a lot in the past  day. I picked the time 2025-06-30 20:30:15 UTC as my driftmon reference time since the squeezer had been locked then and the pointing looked like it was the most consistant with the past few days. I took SQZ_MANAGER to NO_SQUEEZING, then adjusted the sliders for ZM4 and ZM6 until they were pointing in the same way, and we were able to lock wtihout issue.

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