Ops Shift Log: 01/28/2017, Owl Shift 08:00 – 16:00 (00:00 - 08:00) Time - UTC (PT)
State of H1: IFO locked and in Observing for past 25 hours, including 10 hours of concurrent lock with LLO. Environmental conditions remain good. No problems or issues at this time.
Intent Bit: Observing
Support: N/A
Incoming Operator: Travis
Shift Summary: Ran the A2L DTT script a few times during the shift. The Pitch signal is a bit elevated.
Lockloss after 19.5 hours.
After relocked, ran A2L script to reduce Pitch signal. Damped the PI Mode 27. ETMY 4735 Hz violin mode was ringing up after relocking. SDF showed the FM9 filter was turned on. It had been turned off during the lock. I reverted the SDF to turn off the FM9 filter and reset the intent bit to Observing. The 4735 Hz violin mode has settled back down.
Lockloss after 25 minutes. Relocked the IFO without difficulty. Reverted the same FM9 filter to calm down the 4735 Hz violin mode. Damped the PI Mode 27.
Mag 5.8 EQ near Ragul Island N.Z. – IFO did not drop lock. Second wave coming on about 30 minutes after first. Primary microseism peaking at 1.0um/s, saw drop in BNS range.
Activity Log: Time - UTC (PT)
08:00 (00:00) Take over from TJ
08:25 (00:25) Run A2L DTT script. Pitch signal is a bit elevated
13:18 (05:18) Lockloss -
13:50 (05:50) IFO relocked at NOMINAL_LOW_NOISE
13:55 (05:55) Run A2L script to reduce 5 to 30 Hz Pitch signal
13:58 (05:58) Damp PI Mode 27
14:01 (06:01) Revert SDF DIFF to turn off FM9 (+30deg5K filter) on ETMY L2
14:02 (06:02) Set intent bit to Observing
14:15 (06:15) Lockloss –
14:44 (06:44) Relocked at NOMINAL_LOW_NOISE
14:45 (06:45) Revert SDF DIFF to turn off FM9 (+30deg5K filter) on ETMY L2
14:46 (06:46) Set intention bit to Observing
14:54 (06:54) Damp PI Mode 27
14:49 (06:49) Mag 5.8 EQ near Ragul Island, New Zealand
16:00 (08:00) Turn over to Travis
