Reports until 21:15, Thursday 31 July 2025
H1 General (Lockloss)
ryan.short@LIGO.ORG - posted 21:15, Thursday 31 July 2025 - last comment - 09:07, Friday 01 August 2025(86127)
Lockloss @ 03:36 UTC

Lockloss @ 03:36 UTC after 7 hours locked - link to lockloss tool

Possibly an ETM glitch? Hard to say, but the ground was mostly calm at the time, although it's shaking more now as H1 attempts to relock.

Comments related to this report
oli.patane@LIGO.ORG - 09:07, Friday 01 August 2025 (86134)

It looks like all the QUADs suddenly moved a lot and caused the lockloss, but their movement doesn't look like it was caused by the ETMX glitch.  I'm not sure what would have caused it if the ground was calm at the time? ASC and LSC channels all look fine and I couldn't find any other evidence of an excursion.

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