TITLE: 07/30 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 54Mpc
INCOMING OPERATOR: Cheryl
SHIFT SUMMARY: H1 was locked at NLN and Sheila was running a measurement when I arrived. If I understand correctly we lost lock when Sheila attempted to transition from ETMY to ETMX. Lost lock while locking arms on green and upon relocking arms on green the Y arm transmission had dropped. Moved TMSY to recover it. Later lost lock between ROLL_MODE_DAMPING and DC_READOUT_TRANSITION when the ETMX SUS WD tripped. I think Sheila said it might have been due to violins, so upon relocking we stopped at ENGAGE_SOFT_LOOPS to damp them. Made it to NLN and set to observing. Damped PI modes 27 and 28.

LOG:
23:25 UTC Lock loss. Commissioning. Relocking.
Had to move TMSY to increase green transmission.
ETMX RMS WD tripped between ROLL_MODE_DAMPING and DC_READOUT_TRANSITION. Lock loss. Relocking.
00:16 UTC Stopping at ENGAGE_SOFT_LOOPS. Violin mode damping.
02:17 UTC Observing.