Operators name: Tamaki, Hirata
Shift time: 00-08 (JST)

Summary:

Check Items:
VAC, CRY, TEMP had no problems. It seems that some VAC pressure monitors started dropping off, but not stopped.

0:00 OBSERVING from previous shift time
7:35 lock loss (The cause does not seems to be an erarthquake.)
7:52 OBSERVING
8:00 keep OBSERVING