DURATION: 2020/04/16  1:00-9:00 JST, all times posted in JST

 

operator shift : Ushiba

co-operator shift : H.Yuzurihara with T.Yokozawa, T.Yamamoto

 

CURRENT ENVIRONMENT: stable

 

shift SUMMARY : BNS range 0.5 Mpc ~ 0.6 Mpc

 

time / event

1:00 / shift started. detector was locked (8min)

1:08 / lock loss

 

1:10 / obs. mode (5.2W, 17min)

1:27 / lock loss

 

2:23 / difficult to enter obs. mode

2:25 / take SAL alignment

3:04 / finish SAL alignment

 

3:36 / obs. mode (2.7W, 3:41)

5:26 / calibration work started. science mode off

7:17 / lock loss during calibration work. The amplitude of injection was too large.

 

7:23 / obs. mode (2.7W)

9:00 / continuous lock

9:01 / calibration work finished.