TITLE: 10/21 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: TJ
SHIFT SUMMARY: H1 was locked for most of my shift until the microseism eventually got too high. After that, I started troubleshooting issues with initial alignment that were eventually tracked down to be related to a commissioning change earlier in the day; TJ will have an alog with more on this. H1 is currently relocking up to DRMI.
LOG:

• 00:00 - Dropped observing from SQZ PMC unlocking
  • Guardians brought everything back automatically
  • Reapplied nominal damping gain for ETMX mode 1
• 00:05 - Observing
• 01:29 - Turned off ETMX mode 1 damping since monitor filter was ringing up again (see alog87585 for when this happened earlier today)
• 02:29 - Dropped observing to troubleshoot SQZ - alog87594
• 02:43 - Repplied nominal damping gain for ETMX mode 6 (it did not ring up again)
• 03:09 - Observing
• 03:22 - S251021u
• 04:27 - Lockloss - alog87595
  • Troubleshooting begins (see TJ's alog)