Ops Shift Log: 07/21/2019, Evening Shift 23:00 – 07:00 (16:00 - 00:00) Time - UTC (PT)

State of H1: Locked at NLN, range of 117.2Mpc.

Intent Bit: Observing

Support: Keita

Incoming Operator: TJ

Shift Summary: Has a lock loss early in the shift. Encountered difficulty with lock losses around the ENGAGE_ASC_... to PREP_DC_READOUT_... nodes with OMC not finding carrier or on Wrong Mode. Ran an Initial Alignment and tried relocking. The first attempt failed at PREP_TR_CARM. The second attempt was successful. Cleared a few SDF Diffs and went back into Observing.   

 

Activity Log: Time - UTC (PT)

23:00 (16:00) Take over from Ed

00:12 (17:12) Lock loss

04:05 (21:05) After a few lock loss – and call to Keita, we decided to run an Initial Alignment

04:41 (21:41) Completed Initial Alignment (with difficulty)

04:41 (21:41) Try relocking

05:49 (22:49) Back to locked at NLN

05:54 (22:54) Back to Observing after clearing SDF Diffs

07:00 (00:00) Turn over to TJ