TITLE: 01/21 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 65Mpc
INCOMING OPERATOR: Cheryl
SHIFT SUMMARY:

Little frustrating day with and IMC which had an alignment shift and then another lockloss due to ISS saturations.  Other than that, we are battling large useism.
LOG:

• 16:50 PSL Crystal Chiller topped off.
• 17:01  TCSy low chiller flow alarm
• 18:23-21:23 Out due to lockloss (see earlier alog for specifics)
• 23:19 Lockloss (assume this is due to ISS saturations, because didn't see anything seismically, and the IMC couldn't lock because of the ISS.
  • Interesting that the range was shooting up for 10-15min prior to this lockloss---even with the high useism.
• Left H1 in LOCKING for Cheryl, but we also found that the NOISE EATER was off!