TITLE: 9/23 OWL Shift: 7:00-15:00UTC (00:00-8:00PDT), all times posted in UTC
STATE OF H1: Continues to be locked from yesterday (that's 30+hrs!).
SUPPORT: None (& not needed)
SHIFT SUMMARY:
H1 continues to hum along.
Toward the end of the shift (starting at 11:00-13:00utc), H1 started to trend down from 77Mpc down to 64Mpc; only thing I could see correlated to this were the 1-30Hz seismic channels. They actually all peaked around 12:30utc and came down & H1 mirrored this. I reckon this seismic bump is Hanford traffic, but that would be only a guess, because I don't see a bump like this for my shift yesterday morning during this same lock.
No opportunity to engage Sheila's new DHARD Yaw Boost filter due to double coincidence the entire shift.
There is a Timing error on ETMx which should be cleared, but I held off doing this because I didn't want to bump H1 out of Observation Mode.
Incoming DAY Operator: Cheryl V.
SHIFT'S ACTIVITIES: