ryan.crouch@LIGO.ORG - posted 01:32, Tuesday 12 November 2024 - last comment - 04:04, Tuesday 12 November 2024(81217)
H1 OPS OWL assistance
H1 called for help from the initial alignment timer expiring at 09:00 UTC, we were in locking green arms with Yarm struggling to lock, Winds were semi high and microseism is above the 90th percentile. I adjusted ETMY in pitch and it was finally able to lock. I finished the IA at 09:32 UTC.
Struggling to hold the ARMs from FSS oscillations and the wind knocking it out. The wind isn't predicted to calm down till 15:00 UTC and only for an hour before they rise even higher than they are currently from windy.com. The 2ndary microseism isn't helping either.
As of 10:30 UTC I can hold the arms but the FSS keeps oscillating, holding it in DOWN till it passes ( It only took a few minutes)
10:47 ENGAGE_ASC_FOR_FULL_IFO lockloss
11:07 UTC RESONANCE lockloss from DRMI losing it
11:23 UTC RESONANCE lockloss again from DRMI
11:28 UTC FSS keeps oscillating
11:46 PREP_ASC lockloss from the IMC
12:00 UTC ENGAGE_ASC lockloss
The 3 minute average for the wind is just over 20 mph with gusts over 25, that combined with the secondary microseism fully above the 90th percentile relocking this morning is unlikely.
12:35 UTC LOWNOISE_COIL_DRIVERS lockloss