Ops Shift Log: 03/27/2019, Owl Shift 07:00 – 15:00 (00:00 - 08:00) Time - UTC (PT)

State of H1: Locked at NLN, range = 108.0Mpc at 35.2w

Intent Bit: Observing

Support: N/A

Incoming Operator: Niko

Shift Summary: Dropped out of Observing to manually damp Violin Mode-9. Back to Observing after restarting Guardian Damping and accepting SDF Diffs.

Lockloss due to LSC Servo Board Split Voltage is High

Relock at NLN, accept SDF Diffs and back into Observing

Lockloss – Unknown

Down while relocking due to LSC Servo Board Split Voltage High

Relocked at NLN, cleared SDF Diff, and back into Observing

 

 

Activity Log: Time - UTC (PT)

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

08:41 (01:41) Out of Observing to Damp Violin Mode-9

08:42 (01:42) Craig – Running PCal & DARM injections

08:49 (01:49) Craig – Finished running injections

08:58 (01:58) Back to Observing

10:31 (03:31) Lockloss – LSC Servo Board Split Voltage is High

11:59 (04:59) Relocked at NLN

12:10 (05:10) Cleared SDF differences & back into Observing

12:13 (05:13) LockLoss – Unknown

13:00 (06:00) Relocked at NLN

13:03 (06:03) Cleared SDF differences & back into Observing

15:00 (08:00) Turn over Niko