Operators name: K.Yamamoto, O.Miyakawa

Shift time: 08-16 (JST)
Summary:
Check Items:
VAC, CRY, TEMP There was no problem.

08:00 OBSERVING from previous shift time.
12:05 Lock loss due to an earthquake in the low-frequency band (corresponding earthquake is unknown).
12:42 Start OBSERVATION (automatically recovered).

13:24 IPC glitch.
13:25 Request IFO down manually -> PR3 alignment, GR spot on EX was moved 1.5um to the left.
14:53 Start OBSERVATION.

15:23 Lock loss due to an earthquake in the high-frequency band (corresponding earthquake is unknown).
15:34 Start OBSERVATION (automatically recovered).