TITLE: 06/05 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 133Mpc
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 12mph Gusts, 7mph 5min avg
Primary useism: 0.03 μm/s
Secondary useism: 0.13 μm/s
QUICK SUMMARY:
Current IFO Status: NOMINAL_LOW_NOISE & OBSERVING
11:16 UTC Lockloss Update: There were SUS ETMX L3 Saturations right before the Lockloss.
LVEA Temperatue Update:
LVEA Temp has stayed elevated but stable over the last several hours.
Relocking:
Increase flashes And I are having a hard tme getting ALS-C_TRY_LF above 80% due to the low DIFF beat note being in the -40 range.
I'm gonna try going through some of the Manual Initial Alignment to see if I can get that a little higher. That was not a good idea, because not the Diff beatnote got even worse going down to -50s. Taking Sliders back to GPSTIME 1369976970 which is right before the most recent lock. Which did not help the beat notes or the Y arm flashes and better. so i took the sliders back to where they were 5 minutes ago GPStime 1370001722 and touched them up manually. I was able to get a COMM beatnote of -10, (not ideal) And A DIFF beat note of -7 ( Which I think is good.)
First locking attempt : lost lock at TRANSITION_DRMI_TO_3F While Watching H1:LSC-POPAIR_B_RF90_I_ERR_DQ. I saw a kick happen during the transition.
For the Next Locking Attempt I Waited in ENGAGE_DRMI_ASC for ASC Signals to converge for about a minute before moving on. DRMI Lost lock but it wasn't a full lockloss. I tried it again but waited about 4 minutes, and it smoothly transitioned to DRMI_LOCKED_CHECK_ASC.
Got to NOMINAL_LOW_NOISE at 13:35 but the CAMERA_SERVO Guardian has yet to get all the way up to CAMERA_SERVO_ON. Turns out i was being impatient and it would have happened eventually.
13:51 UTC OBSERVING
This looks to me like the ADS is actually still converging this whole time and there wasn't an issue with the gaurdian(s). The convergence of the smooth channels (eg. H1:ASC-ADS_PIT3_SMOOTH_INMON) seems to take longer than usual for a reason I haven't looked into. The convergence checker in the CAMERA_SERVO node will run instantaneous checks of these smooth channels to look for values below 0.0025. Since we are looking at 6 different channels (4,5,6 P&Y for each), when we are below that threshold for all of them at the same time, we are probably converged enough.