Ops Shift Log: 03/28/2019, Owl Shift 07:00 – 15:00 (00:00 08:00) Time - UTC (PT)

State of H1: Relocking after lockloss just after CAL injections.  

Intent Bit: Locking

Support: Sheila

Incoming Operator: Niko

Shift Summary: Jenne’s IMC-VCO Sweep finished.

   Dropped out of Observing so commissioners could run some injections and I could damp ETM-X Mode-9. When both finished back into Observing.

   Just before 05:00 Kicked out of Observing by CALINJ SDF differences. Accepted differences and back into Observing. Lost lock 4 minutes later. Tried relocking but could not get past DRMI_1F. Ran Initial Alignment and relocked at NLN. Lost lock shortly after due to ASC saturation. Ran the command in Georgia’s aLOG #47968 to reset power on ITM-X ring heater. Started to relock as shift ended.      

 

Activity Log: Time - UTC (PT)

07:00 (00:00) Take over from Patrick

09:45 (02:45) ETM-X Violin Mode-9 ringing up

10:27 (03:27) Out of Observing for injections

10:22 (03:22) Jenne’s IMC-VCO Sweep finished

10:28 (03:38) Switch to DAMPING_ON_ SIMPLE to damp ETM-X Mode-9

10:40 (03:40) Switch back to DAMPING_ON_DC

10:40 (03:40) Craig – Finished with Injections – IFO back to NLN

10:45 (03:45) Back in Observing

11:55 (04:55) Kicked out of Observing by CALINJ SDF Diffs

12:01 (05:01) Accepted CALINJ SDF diffs and back in Observing

12:05 (05:05) Lockloss – Unknown

13:13 (06:13) Run Initial Alignment

13:59 (06:59) Bubba – Out to End-Y chiller yard

14:21 (07:21) Bubba – Back from End-Y chiller yard

14:35 (07:35) Relocked at NLN but lost lock shortly thereafter due to ASC saturation.

14:38 (07:38) Started relocking

14:40 (07:40) Ran Georgia’s command to restored ITM-X ring heater power (aLOG #47968)

15:00 (08:00) Turn over to Niko