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Reports until 07:59, Monday 01 May 2017
H1 General
jeffrey.bartlett@LIGO.ORG - posted 07:59, Monday 01 May 2017 (35932)
Ops Owl Shift Summary
Ops Shift Log: 05/01/2017, Owl Shift 07:00 – 15:00 (00:00 - 08:00) Time - UTC (PT)
State of H1: Unlocked       
Intent Bit: Commissioning/Earthquake
Support: Dave B.,
Incoming Operator: Ed

 

Shift Summary: Run A2L check script. Pitch is below reference, Yaw a bit elevated. Received GRB. Both sites in observing. Spoke with LLO. In one hour hold until 12:12 (05:12).

FE computer H1IOPSUSAUXB123 crashed. Spoke to Dave B. – Reset FE computer to recover.  Back into observing.

Received an EQ warning and shortly lost lock. USGS showing a Mag6.5 in Alaska. Both Primary and Secondary microseism are off the top of the charts. Tripped the WD on most SUS, all, ISIs, several HEIPs, and all four IMs. Have the IFO in DOWN until things settle down a bit. Have been resetting tripped WD as necessary. A dozen after socks in Alaska have been recorded. Primary and Secondary microseism are still above 1.0um/s.

As the seismic was ringing down tried relocking. After relocking ALS Green, hit with another Mag6.3 earthquake near Skagway Alaska. Seismic Primary and Secondary are off the top of the charts. Put the IFO back into DOWM and started resetting the SUS and SEI watchdogs.               

 

   Activity Log: Time - UTC (PT)
07:00 (00:00) Take over from Nutsinee
11:12 (04:12) GRB – Observe one hours hold
11:24 (04:24) Dropped out of Observing due to FE computer crash.
11:44 (04:44) Back in Observing after resetting H1IOPSUSAUXB123
12:35 (05:35) Lost lock – Mag6.5 Earthquake near Skagway, Alaska
15:00 (08:00) Turn over to Ed
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