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Reports until 08:44, Thursday 30 October 2025
H1 CAL
thomas.shaffer@LIGO.ORG - posted 08:44, Thursday 30 October 2025 - last comment - 10:45, Thursday 30 October 2025(87848)
Calibration Sweep 1530UTC, but lost lock 4 min into simulines

Ran a broad band and then started simulines for 4 minutes before we had a lock loss.

Start:

PDT: 2025-10-30 08:36:06.772736 PDT
UTC: 2025-10-30 15:36:06.772736 UTC
GPS: 1445873784.772736
 

Lock loss at 154010UTC

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elenna.capote@LIGO.ORG - 10:45, Thursday 30 October 2025 (87852)

The broadband shows the calibration looks pretty good, although it is different, probably from Sheila's change of the gain scaling which has effected the measured optical gain, 87806.

It would be helpful if we got a full calibration this weekend, just to see if this is only due to the kappa C change.

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