Ops Shift Log: 05/30/2019, Owl Shift 07:00 – 15:00 (00:00 - 08:00) Time - UTC (PT)

State of H1: Locked at NLN, with 11.5Mpc of range.  

Intent Bit: Observing

Support: N/A

Incoming Operator: Niko

Shift Summary: Switch to EARTHQUAKE mode for mag 6.6 earthquake in El Salvador, but lost lock anyway. After seismic rang down tried to relock, but found BS way out of alignment. After running an Initial Alignment, relocked the IFO with very little trouble. Accepted a large number (19 nodes) of SDF differences and went back into Observing.

Remainder of the shift was spend in Observing. The range has been around 110.5Mpc.

Have a “green power stabilization railed” message in Squeezer Manager; informed Sheila.  

 

Activity Log: Time - UTC (PT)

07:00 (00:00) Take over from Patrick

09:12 (02:12) Switch SEI_CONF to EARTHQUAKE for mag 6.6 earthquake in El Salvador.

09:20 (02:20) Lock loss – El Salvador earthquake

10:19 (03:19) GRB Alert – All sites down

10:45 (03:45) Switch SEI_CONFIG back to WINDY as EQ rings down

10:50 (03:50) Attempt to relock

11:10 (04:10) Start Initial Alignment

11:35 (04:35) Finish Initial Alignment

11:35 (04:35) Start locking

12:15 (05:15) Locked at NLN

12:28 (05:28) Accept SDF Diffs and into Observing

15:00 (08:00) Turn over to Niko