Reports until 16:37, Saturday 16 November 2024
H1 General (SUS)
anthony.sanchez@LIGO.ORG - posted 16:37, Saturday 16 November 2024 - last comment - 17:39, Saturday 16 November 2024(81312)
Saturday Ops Eve Shift Start

TITLE: 11/17 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Observing at 159Mpc
OUTGOING OPERATOR: Ibrahim
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 15mph Gusts, 11mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.24 μm/s
QUICK SUMMARY:

H1 Has been locked for 1 Hour and 45 minutes.
DCPD's are diverging, Which I usually attribute to the Violins growing.
Turns out it's one of the usual suspects..... ITMY Mode 5 increasing.

I have turned the Gain off of ITMY m5 to see if it stays at that level or decreases.

The IFO stays locked until 1:25 UTC then I can do a Calibration sweep are the calibration time early today was missed by a lockloss.

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anthony.sanchez@LIGO.ORG - 17:39, Saturday 16 November 2024 (81313)Lockloss, PSL

Lockloss https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1415840300
 

This looks like there is some IMC issue that cause this Lockloss.
The Lockloss plots show that at -906ms  there was blip on the PSL-FSS_FAST_MON _OUT_DQ channel.

Relocking the IMC was difficult as the IMC kept going into fault. I took ISC_LOCK to idel and took the IMC to idle for 10 minutes.
Relocking started fine, except I had to manual green arms.

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