Operators name: T. Yokozawa, S. Oshino
Shift Time: 08-16 (JST)
Summary:

Check Items:
VAC,CRY,TEMP There was no problem.
The temperature of EY 50K cooler is increasing.

09:32 lock loss
09:47 observation mode (automatically recovered, GRY was recovered to TEM00 mode (klog25399))
15:51 lock loss, PR3 alignment was starting