Reports until 00:43, Friday 25 August 2017
H1 General
edmond.merilh@LIGO.ORG - posted 00:43, Friday 25 August 2017 - last comment - 00:57, Friday 25 August 2017(38360)
Shift Transition - Owl

TITLE: 08/25 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 48Mpc
OUTGOING OPERATOR: Jeff
CURRENT ENVIRONMENT:
    Wind: 9mph Gusts, 8mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.10 μm/s
QUICK SUMMARY:

H1 was locking when I arrived. uSEI ws up to .2um/s and winds had been nearing 40mph earlier. OMC had to be massaged a bit before DC readout as it wouldn't lock. The AS90(purple)trace looked like te victim of some kind of offset as it was off scale until power increase where it came back down to familiar amplitudes. I ran a prelim a2l before setting the bit. the range was below 50Mpc as it was after I spoke to Aidan yesterday morning and he had me manually adjust the TCSX LASER power from preheat level (.500W) to .300W (see his aLog). He told me that we would probably go to .350W to claim a bit more of our already weakish range, so I did and it looks as if it may be a good move as our range has crept back up to 50+Mpc. Tweaking PI mode 28 (as usual).

 

Comments related to this report
edmond.merilh@LIGO.ORG - 00:50, Friday 25 August 2017 (38362)

7:50UTC Verbal Alarms is dodgy. Going to restart

edmond.merilh@LIGO.ORG - 00:57, Friday 25 August 2017 (38363)

While trying to quit to restart the missed messages started to cycle out. After restart I got: Could not connect to GRD_ALS_DIFF_ETMY_ESD_ERROR.

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