Reports until 08:40, Friday 21 October 2016
LHO General
patrick.thomas@LIGO.ORG - posted 08:40, Friday 21 October 2016 (30715)
Ops Owl Shift Summary
Lock loss at NLN, same as last night, DHARD pitch went into oscillation. Since Terra only needed high power and not NLN, stopped there for subsequent locks.

07:10 UTC Sheila to LVEA to check PSL enclosure air conditioning
07:15 UTC Sheila back
07:28 UTC Attempting to lock
08:00 UTC Stopping at INCREASE_POWER (50W) for Kiwamu and Sheila
08:26 UTC Moving to NLN
08:32 UTC NLN
08:36 UTC Lock loss
08:53 UTC PRMI to DRMI transition worked
09:06 UTC Lock loss almost immediately upon reaching DC_READOUT
09:12 UTC I'm trying to turn off the ISS autolock, but something keeps turning it back on.
09:41 UTC DC_READOUT. Waiting for roll modes to damp.
09:49 UTC Moving on
10:01 UTC NLN
10:05 UTC Lock loss. DHARD oscillation before hand.
10:10 UTC Turning off ISS autolock turns on the first loop integrator? Turning on the ISS autolock turns off the first loop integrator?
10:30 UTC Stopping at INCREASE_POWER (50W). Terra taking PI measurements.
11:00 UTC Lock loss (PI mode 27)
11:21 UTC Stopping at INCREASE_POWER (50W). Terra taking PI measurements.
12:10 UTC Lock loss (PI mode 27)
12:14 UTC IR not found for diff. Found by hand.
12:34 UTC Lock loss just after reaching DRMI_LOCKED.
13:00 UTC Stopping at INCREASE_POWER (50W). Terra taking PI measurements.
14:16 UTC Changed ITMY ring heater upper and lower requested power from 1.25 W to .25 W per Terra's request.
14:23 UTC ETMY violin mode 9 rang up. Terra changed the damping gain to damp it.
15:03 UTC Lock loss. Trouble locking PRMI. Catches but does not hold.