camilla.compton@LIGO.ORG - posted 00:09, Wednesday 31 May 2023 (70025)
OPS Evening Shift Summary
TITLE: 05/31 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing
SHIFT SUMMARY:
LOG:
Lock#1:
Adjusted some violin settings, note that we now have no good damping settings for IY5/6 and are leaving them with a gain of zero alog 70020.
Lockloss at 01:09 UTC after 2h44 minutes at NLN. From lockloss tool can see a ~10-14Hz Yaw wiggle (LPY plot) in the seconds before lockloss, can also be seen in ASC control signals: 1369530572
Lock #2:
Super long relock acquisition as I failed to notice that SRM didn't correctly lock during INITAL_ALIGNMENT as TJ warned, see 70027 and 70013. Thanks Jenne for helping.
Temperatures in the LVEA are still changing, see attached plot of last 36 hours to go with TJ's 70000. (I adjusted the y-axis scale by 1degree)
Back to NLN at 05:07UTC and Observing (after waiting for ASD to converge) at 05:20UTC.
PI31 was successfully automatically damped at the stat of the lock (see attached)
Only sdfs were for adjusting SQZ FC_ASC threshold and OPO TEC temperature set piont, details in alog 70031.
Images attached to this report
