Reports until 17:07, Monday 24 July 2023
H1 General (Lockloss)
oli.patane@LIGO.ORG - posted 17:07, Monday 24 July 2023 - last comment - 21:13, Monday 24 July 2023(71666)
Lockloss from NLN

Lockloss at 18:07 from NLN - possibly due to high wind affecting EY.

 

Tried relocking for ~40 minutes, but ALSY won't catch (probably from wind - see TJ's alog and current wind). I put the detector into DOWN at 23:35 and at 23:56 am now trying to lock again.

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oli.patane@LIGO.ORG - 20:06, Monday 24 July 2023 (71669)GRD
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Wind has reduced a lot.

Still working through getting the detector back up - we got close a couple of times (ENGAGE_ASC_FOR_FULL_IFO), but kept losing lock.

I decided to run an Initial alignment, which was able to go all the way through to SRC_ALIGN_OFFLOADED with no issues, but the INIT_ALIGN manager had gotten stuck at ALIGNING_INPUT and I could not move it through to finish. I put ISC_LOCK to DOWN and tried locking like normal, but it lost lock and so H1_MANAGER decided to run another initial alignment, which went well for ALIGN_IFO and INIT_ALIGN, and now we are in the process of locking again.

We're getting a lot of Verbal saturation warnings for SR/PR/MC's while trying to lock instead of just the usual ITMs/ETMs.

oli.patane@LIGO.ORG - 21:13, Monday 24 July 2023 (71671)
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