Reports until 17:42, Friday 28 July 2017
LHO General
patrick.thomas@LIGO.ORG - posted 17:42, Friday 28 July 2017 - last comment - 17:59, Friday 28 July 2017(37857)
Ops Eve Shift Transition
TITLE: 07/28 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
OUTGOING OPERATOR: Jim
CURRENT ENVIRONMENT:
    Wind: 10mph Gusts, 8mph 5min avg
    Primary useism: 0.16 μm/s
    Secondary useism: 0.14 μm/s 
QUICK SUMMARY:

Jim and Sheila were damping violin modes at DC_READOUT. I damped ETMY mode 9 (1009.2 Hz) using FM4, FM5, FM7 +100 gain in YAW. Sheila requested that we attempt NLN. We made it to NLN in time for ~5 mag earthquake from California. Have remained locked through it. Sheila went to end X. PI mode 28 started ringing up and my changes in phase did not seem to affect it. It seems to be slowly coming back down on its own. We are not ready to go to observing, but there are SDF differences that I do not know what to do about (see attached).
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patrick.thomas@LIGO.ORG - 17:59, Friday 28 July 2017 (37858)
Per Jim's text: Set H1:ISI-HAM4_SENSCOR_GND_STS_Y_WNR_GAIN to 0. Reverted the SDF difference (attached).
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