TITLE: 06/13 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Observing at 148Mpc
INCOMING OPERATOR: Corey
SHIFT SUMMARY:

Observing at 148 Mpc and have been Locked for almost 6 hours. I just turned the Roll damping off for ETMY so we don't get any sdf diffs if we have to relock overnight.

When we first got back up, we were noticing the ETMY roll mode ringing up again, which we had been hoping to have solved by Elenna's changes to the SRCL FF (84998). We tried turning damping back on where we had had it in previoius locks (at 20), but this didn't seem to be doing anything this time. We eventually tried a gain of 30 instead, and this finally started damping it.

Near the beginning of the lock, we also had the SQZer unlock and it was having trouble relocking by itself because the LO could not relock due to the ASC having pulling ZM4 and ZM6 out of range. To fix this, Camilla took us to NO_SQZ, then cleared the history on the P and Y lock filters on ZM4/6. Afterwards, she verified that we would've also been able to do this by just taking SQZ manager to RESET_SQZ_ASC, and then back to FDS once that finishes.

In the hours after that, we've had the SQZer unlock multiple times, which is why we've been popping in and out of Observing so much, but each time it has been able to relock itself fine.

LOG:

21:30 Working on PRMI
21:41 Decided to just try and relock bc wind is rising
    - Started an IA due to DRMI not being able to catch
    - Lost lock during ENGAGE_ASC_FOR_FULL_IFO (the glitch that happens during it got too big)
23:32 NOMINAL_LOW_NOISE
23:39 Observing
23:41 Quickly out of Observing to turn on ETMY Roll damping
23:41 Back into Observing
23:54 Out of Observing due to turning ETMY roll damping back on
23:54 Back into Observing
00:01 Out of Observing due to SQZer unlocking
    - LO could not relock due to the ASC running away
00:15 Back into Observing
00:17 Out of Observing to try bumping up the ETMY Roll damp gain
00:17 Back into Observing
02:17 Out of Observing due to SQZ unlock
02:20 Back into Observing
02:49 Out of Observing due to SQZ unlock
02:57 Back into Observing
03:37 Out of Observing due to SQZ unlock
03:38 Back into Observing
05:11 Out of Observing to turn the ETMY roll damping off
05:12 Back into Observing