Reports until 20:23, Saturday 18 November 2023
H1 General
anthony.sanchez@LIGO.ORG - posted 20:23, Saturday 18 November 2023 (74281)
Saturday Mid Shift update

TITLE: 11/19 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 149Mpc
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 9mph Gusts, 7mph 5min avg
    Primary useism: 0.03 μm/s
    Secondary useism: 0.29 μm/s
QUICK SUMMARY:

Locking Notes:
H1 got stuck in DRMI_LOCKED_CHECK_ASC PRC1 Pit not converged, thresh=400
and SRC2 yaw not converged, thresh=200

I tried moving SRM2 a little but realized that Gaurdian logs stopped giving me information and I couldn't see any movement and couldn't tell if I was making it better or worse.

Current gps time 1384392748
GPS Time of last good Initial alignment 1384029371 (3 days ago)

I imagine that this is a problem with alignment due to thermal changes over the last few days.
Looking at the Misaligned tool, tried to see if I can glean any info out of that.

Took ISC_LOCK to a DOWN state.
Used the Restored ALL button on AlignIFO MEDM screen to send all optics back to 1384029371 (the tail end of the last good Initial Alignment right before a nice lock stretch ~ 3 days ago)
Took ISC_LOCK to Initial Alignment.
Then While in Initial Alignment was locking green I Restored just the X and Y arms back to 1384392748 (just a few minutes ago) so I dont have to redo green arms again & Made it through Initial Alignment again.

Locking attempt 3
Made it past DRMI_1F
Made it past DRMI_LOCKED_CHECK_ASC
2:44 UTC reached NOMINAL_LOW_NOISE
2:48 UTC made it to OBSERVING