DURATION: 2020/04/08 17:00-25:00 JST, all times posted in JST

operator shift : T. Ushiba
co-operator shift : T. Uchiyama

CURRENT ENVIRONMENT: stable

shift SUMMARY : BNS range 0.3Mpc ~ 0.6Mpc

time / event

17:00 / shift started. IFO recovery works still continues by Kokeyama, Lucia, Fabian, and Ushiba. http://klog.icrr.u-tokyo.ac.jp/osl/?r=14041
19:20/ initial alignment done.
19:44/ lock recovered with IMC output power of 5.1W
19:56/ Lock loss
20:17/ Lock recovered with IMC output power of 5.1W

20:25/ Observing started
[observation maintained for 1.5hour ]
22:06/ unlocked (not earthquake)

22:19/ Observing started. IMC output is 5.2W
[observation maintained for 2hour 40min ]
25:00 / continuous locking?

duty cycle 2020/04/08 17:00 -- 25:00 : Observation mode 52%