TITLE: 12/02 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 73.9893Mpc
INCOMING OPERATOR: Ed
SHIFT SUMMARY:

Locked for a good chunk of the shift, but useism & wind grew pretty noisy in the afternoon....to a point where locking was going to be tough.

LOG:

• Elevated Dust Levels in Southbay & inside PSL Room from OWL shift & continued throughout the day.
• 16:36:  Xmid Cleaning
• 20:16 Out of Observing
  • A2L Run & testing of new A2L interface (JimW & Jenne)
  • High-freq Cal Line change (Evan)
• 20:28 OBSERVING
  • 20:51 Lockloss!
  • ASC ERROR Pitch increased, Wind gusted up to 16mph, useism is hovering around 0.7um/s
• Alfredo & Elizabeth at MidY
• 21:44 OBSERVING
  • BS & PRM were way off, so during locking tweaked BS alot in MICH Fringes, & PRM with unlocked PRMI (under Sheila's watchful eye).  Then PRMI finally locked!
  • 22:56 "TCSY chiller flow is low" alarm.  Looked at trend, notified Jason, and he went to Chiller.  He thinks it's a Chiller issue & swapping this out is on their Maintenance To Do list.
  • 23:13 GRB Alarm
  • 23:21 Knocked out of Commissioning by SDF Diff from EX Beckhoff computer. (not clear what channels caused it yet).
  • 23:56 Lockloss (due to high useism & winds).