ryan.crouch@LIGO.ORG - posted 17:09, Wednesday 23 July 2025 - last comment - 18:09, Wednesday 23 July 2025(85948)
00:08 UTC lockloss
00:08 UTC lockloss after only 4 minutes, wiggle in PR_GAIN right before we lost lock
PRC2 and CSOFT Yaw stepped out right before the LL. TMSX_Y started to oscillate 4 seconds before the LL, PM1_Y had an excursion ~3 seconds before the LL.
Looking at all the suspicious things together, it looks like TMSX_Y started moving first before any of the ASC loops? Only ~100ms before CSOFT started moving.