TITLE: 12/25 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 114Mpc
INCOMING OPERATOR: Jeff
SHIFT SUMMARY:

Nice first half of the shift, and then an EQ made for a rough 2nd half.  Locking was tough after the EQ with many locklosses (no notes in this summary, because they were all submited in the Ops Survey). 

Restored IMs (per Niko + Cheryl IM alog) & this made locking not a problem.

SEI_DIFF prevented Observing, so had to jump through a few hoops to get us back up (see my most recent alog).

Did not get to run Sensor Calibration measurements due to EQ.  Also missed a superevent candidate which rolled in while H1 was down.  :(
LOG:

• 17:39 GRB received, but ignored due to long duration.  
• 20:38 EQ Alert:  5.8 - 6.4 Off of Chilean coast
  • 20:41 SEI_CONF to EARTHQUAKE
• 20:44 Lockloss
• 20:55 SEI_DIFF to DOWN (from CORNER_DIFF_CPS)...
• 21:23 SEI_CONF to WINDY
• 22:05-22:20 IM restoration
• 22:21-22:43 Initial Alignment (w/ no issues)
• 23:37 Back to Observing