Ops Shift Log: 12/25/2019, Evening Shift 00:00 – 08:00 (16:00 - 00:00) Time - UTC (PT)

State of H1: Locked at NLN, Range 113.2Mpc  

Intent Bit: Observing

Support: N/A

Incoming Operator: Niko

Shift Summary: IFO has been observing for the past 8.5 hours, yielding two GRB candidates. Secondary microseism remains elevated, but the slope is flat to slightly downward. The earthquakes from the first half of the shift have quieted down a bit. All in all things are looking semi-OK.    

 

Activity Log: Time - UTC (PT)

00:00 (16:00) Take over from Corey

00:32 (16:32) GRB Alert #358420. Looks good, Stand down for 1 hour.

01:30 (17:30) End GRB stand down

02:42 (18:42) Switch to EARTHQUAKE mode for three of incoming EQs from New Caledonia

                      Would not normally switched modes for these two EQs, but Microseism is high and

                      Peak Mon is elevated.

03:25 (19:25) Switch back to WINDY after trio of earthquakes have passed

05:35 (21:35) GRB Alert #E358439. Looks good. Stand down for 15 minutes

05:50 (21:50) Back to INJECT_SUCCESS

06:01 (22:01) GRB Long Alert – TD = 8.192 sec – Ignored

08:00 (00:00) Turn over to Niko