Reports until 08:05, Tuesday 06 June 2023
H1 General (CDS, PEM, SUS)
camilla.compton@LIGO.ORG - posted 08:05, Tuesday 06 June 2023 - last comment - 01:27, Saturday 10 June 2023(70170)
OPS Owl Shift Summary

TITLE: 06/06 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 133Mpc
SHIFT SUMMARY: About to start maintenance day.
LOG:

H1 glitches nuc27 FOM isn't updating for Omicrom. I posted this in the LHO DetChar chat.ligo group.

I've had to restart the DARM FOM on nuc30 3 times and Ryan noted he did ~4 times during the evening. Tagging CDS.

I expected PEM magnetic injections to start at 7:25am, it was 14:30UTC to 14:48UTC. SUS_CHARGE started at 14:45UTC with lines at 11-14Hz when PEM_MAG_INJ was stilll at EY_EBAY_HIGH_INJ. So they overlapped by 2-3 minutes.  Tagging PEM and Tagging SUS  In-lock charge measurements caused a lockloss again at 15:00UTC 70062.

Start Time System Name Location Lazer_Haz Task Time End
13:21 CDS Erik Remote N Rebooting work stations 13:21
14:17 COMM Camilla CR N PRCL OLG Measurement 14:27
14:30 PEM PEM_MAG_INJ GRD Auto N Automatic magnetic injections 14:48
14:45 SUS SUS_CHARGE GRD Auto N Automatic in-lock charge measurements 15:01
 
 
Lock #1 Locked for 12h.
Lost lock at 09:37UTC, cause was 11Hz PRCL instability, plot in 70169. Aso a small EQ coming through in the ~minute after. This is with Jenne's updated PRCL2 gain of 1.7 70160.
 
Relocking:
Successfully did an initial alignment after couldn't lock PRMI (with moving PRM) and we lost lock at CHECK_MICH_FRINGES. Since then locking has been fine, currently at MAX_POWER.
SQZ_OPO_LR guardian had error message "Disabled pump iss after 20 locklosses, reset counter to clear message"  so I followed instructions in 68695, taking SQZ_OPO_LR guardian to LOCKED_CLF_DUAL_NO_ISS and then back to the nominal LOCKED_CLF_DUAL.
 
Lock #2 NLN @ 11:22, Observing @ 11:34UTC. Locked for 1h26.
Reverted sdf so that we have the updated PRCL2_GAIN of 1.7 in this lock 70160. There was a 3 sec ramp time.
Lost lock at 12:48UTC 1370090939. Don't know why. Not PI, not PRCL 11Hz.
 
Relocking
100% automated!
 
Lock #3  NLN @ 13:55, Observing @ 14:05UTC.
Again reverted sdf so that we have the updated PRCL2_GAIN of 1.7 70160.
Had both PI24 and PI31 ring up and damp 1 hours inot the lock, with in-lock charge measurements going, see attached.
Images attached to this report
Comments related to this report
ryan.short@LIGO.ORG - 01:27, Saturday 10 June 2023 (70322)PEM
Link

To fix the overlap between the magnetic injections and in-lock charge measurements, I've moved the start time of the magnetic injections up to 7:20am from 7:25am (tagging PEM).