Reports until 16:33, Sunday 08 September 2024
H1 General
oli.patane@LIGO.ORG - posted 16:33, Sunday 08 September 2024 (79979)
Ops Day Shift End

TITLE: 09/08 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY: Just got into Observing after having waited in OMC_WHITENING for a while damping violins - they seem to have gotten rung up from a lockloss we had from ENGAGE_ASC_FOR_FULL_IFO. This last relocking process went smoothly otherwise, and the lockloss from earlier today was also not complicated, besides needing to wait a good while for ALSY WFS 3 Yaw to converge.
LOG:

14:30UTC Observing and Locked for 16:50hours
15:21 Lockloss after 17:39 hours locked


15:41 Going to run an initial alignment after locking green arms
    - ALS_YARM was sitting in the INITIAL_ALIGNMENT state for a while without starting offloading because WFS_3_Y was taking a while to get under the threshold. I took ALS_YARM to UNLOCKED just in case and then back to INITIAL_ALIGNMENT_OFFLOAD and it converged eventually.
16:36 Initial alignment done, relocking
17:18 NOMINAL_LOW_NOISE
17:21 Observing

21:45 Lockloss
22:16 Lockloss from ENGAGE_ASC_FOR_FULL_IFO
23:30 NOMINAL_LOW_NOISE
23:30 Observing