Ops Shift Log: 04/07/2019, Day Shift 15:00 – 23:00 (08:00 - 16:00) Time - UTC (PT)

State of H1: Locked at NLN

Intent Bit: Observing

Support: Keita, Sheila

Incoming Operator: Niko

Shift Summary:  Had a GRB Alert while recovering from the lockloss. Rode through a mag5.7 earthquake in Chile while relocking, without difficulties. Relocked and back in Observing.  

   After relocking ETM-Y Mode2, Mode4, and Mode8; ETM-X Mode6; ITM-Y Mode12 were ringing up. They have been slowly increasing or slightly decreasing throughout the shift.

   Kicked out of Observing - OPO saturation of ZM1 UL, LR and ZM2 UL, LL, UR, LR

Called Keita. He and Sheila resolved the problem. After the SDF Diffs cleared, went back into Observing.

Had a GRB alert while we were out of Observing for OPO problem.

   We have been locked in Observing for the past 6.25 hours, except for the 45 minutes during the OPO problem.  

 

Activity Log: Time - UTC (PT)

15:00 (08:00) Take over from Patrick

15:53 (08:53) Lockloss – LSC Servo Board Split Voltage High

16:07 (09:07) GRB Alert – IFO Unlocked – Confirmed with LLO

16:53 (09:53) Relocked at NLN and back into Observing

18:43 (11:43) Out of Observing – SDF Diffs - OPO message saturations ZM1 & ZM2

18:45 (11:45) GRB Alert – IFO out of Observing due to SDF Diff/OPO problem

19:30 (12:30) Keita requested locked in SQZ_SHG and then requested SQZ_MANAGER squeezing

19:34 (12:34) Back into Observing mode

23:00 (16:00) Turn over to Niko