DURATION: 2020/04/08  1:00-9:00 JST, all times posted in JST

 

operator shift : T.Yamamoto

co-operator shift : H.Yuzurihara with K.Miyo

 

CURRENT ENVIRONMENT: stable

 

shift SUMMARY : BNS range 1.0 Mpc ~ 1.2Mpc

 

time / event

1:00 / shift started

1:10 / Yuzurihara cross-checked the value of the inspiral range (~1 Mpc) to make sure it is correct.

1:30 / discussed about h(t) reconstruction with CAL members

2:20 / Sawada-san fixed the bug in low-latency h(t) calculation as reported in klog-14035

 

3:42 / lock loss (no earthquake) and waited for being stable of AS port and requested observation mode

3:53 / recovered lock

 

5:08 / lock loss (no earthquake)

5:16 / recovered lock

 

9:00 / continuous locking

 

duty cycle 2020/04/08 01:00 -- 09:00 : Observation mode 97.2%

 

As reported in klog-14035, CAL members found the mistake in low-latency h(t) when they updated the paremeters.

So, we should not analyze the low-latency data of 2020/04/07 17:00 JST ~ 2020/04/08 2:20 JST.