Activity Log: All Times in UTC (PT)

08:00 (00:00) Take over from TJ
08:10 (00:10) GRB Alert. IFO in Observing mode. Spoke to LLO
10:01 (02:01) Gerardo – Back from Mid-Y 
10:15 (02:15) Gerardo – Going back to Mid-Y
10:16 (02:16) Kyle – Called to check on problem with CP-3
10:17 (02:17) John – On site with Gerardo at Mid-Y
12:45 (04:45) John & Gerardo – Back from Mid-Y – leaving site
14:00 (06:00) Restart CS weather station code
15:30 (07:30) CP-4 is dropping N2. Percent down to 83%. Sent E-Mail and V-Mail to Gerardo 
16:00 (08:00) Turn over to Cheryl

End of Shift Summary:

Title: 12/22/2015, Owl Shift 08:00 – 16:00 (00:00 – 08:00) All times in UTC (PT)

Support:  Gerardo, John
 
Incoming Operator: Cheryl

Shift Detail Summary: Locked in Observing mode for entire shift. Take down IFO for start of maintenance window. 

There were problems with CP-3 (aLOG #24370, 24379) which Gerardo and John worked on. After Gerardo left CP-4 started to show dropping N2 levels as well. Down to 83%. Sent E-Mail and V-Mail to Gerardo.