TITLE: 11/05 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY:

• Shift started with opportunistic PEM commissioning
• 23:32 Resumed observing
• 01:35 Dropped observing from SQZ ISS pump dropping out (tagging SQZ)
  • Guardians brought everything back automatically
• 01:37 Resumed observing
• 04:12 Lockloss - alog
• Struggling to relock; locklosses at various places
• 05:50 Starting initial alignment
• 06:23 IA finished, trying to lock again
• Still no luck; issues seem to be around TR_CARM steps. Still having the problem where ALS_DIFF is not stable when looking for IR resonance during FIND_IR, but I can usually get it good enough to progress past CHECK_IR
• Looking into possibility of bounce/roll modes being rung up, but they seem to be around this level at this point in the lock sequence
• Walking through steps of START_TR_CARM line-by-line (the problem state); lockloss happens soon after ALS-C_REFL_DC_BIAS_GAIN is set to 24
• Now struggling to get even up to locking DRMI; green in arms is having trouble staying locked, possibly due to higher microseism?

Tagging in Ryan C to continue troubleshooting.

LOG: