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Reports until 00:16, Sunday 03 September 2023
H1 General
oli.patane@LIGO.ORG - posted 00:16, Sunday 03 September 2023 (72648)
Ops EVE Shift End

TITLE: 09/03 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 145Mpc
INCOMING OPERATOR: Austin
SHIFT SUMMARY: We have now been Locked for 4hrs 50mins. There were two locklosses from NLN during my shift, but both times locking back up was fast and hands-off. I could not find a cause for either of them.

The code changes made earlier today(72636) for mode24 seem to be working well, and there was only one time (that I saw at least) where the phase was cycled through fully, and mode24 didn't get above ~15.

Just before posting this, I heard the building creak and the wind speed at all buildings jumped up really high!

23:00UTC Detector in Observing and Locked for 1 hour

23:48 Lockloss from NLN (72644)
23:50 Lockloss from LOCKING_ALS

00:17 GRB-Short alert E434681 - Fermi, NOT_GRB

00:34 Reached NOMINAL_LOW_NOISE
00:47 Into Observing

01:28 Lockloss (72646)
02:18 NOMINAL_LOW_NOISE
02:30 Observing

04:30 Optics lab dustmon jumped up from 0 to 4300 counts for 10mins, and then back down to 0. Lines up with a temporary increase in wind at the corner station.

LOG:

no log

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