The IFO was relocking from a recent LL when I arrived (15:15UTC) which looked to have been caused by some sudden local ground motion. Anthropogentic tag with over the threshold z-direction ground motion.

At 17:43 I went out to the VPW to power cycle thermostats again

While relocking I had lots of higher state locklosses, Lockloss at LOWNOISE_COIL_DRIVERS, TRANSITION_FROM_ETMX, MAX_POWER. After the MAX_POWER lockloss the violins looked very rung up on DARM. HWS codes stopped for ITMY reports DIAG_MAIN tagging TCS

• 16:47 LOW_NOISE_COIL_DRIVER lockloss
• 17:29UTC TRANSITION_FROM_ETMX lockloss
• 18:29UTC MAX_POWER lockloss
• 19:19 LOW_NOISE_COIL_DRIVER lockloss

20:47 back into Observing after slowly stepping through the higher states starting with MAX_POWER, out of Observing at 22:24 for Naoki to adjust the SQZer, back into Observing at 22:36UTC

ITMX mode12 was ringing up under nominal settings again so I used FM1+FM6+FM10 G=+1 to damp it