aLIGO LHO Logbook

H1 General (Lockloss, SEI)

ryan.crouch@LIGO.ORG - posted 23:28, Sunday 31 December 2023 (75102)

Lockloss at 07:21UTC

Lockloss from a large earthquake (7.4 by Japan). Holding ISC_LOCK in down till the ground motion resides.