Ops Shift Log: 08/25/2019, Day Shift 15:00 – 23:00 (08:00 - 16:00) Time - UTC (PT)

State of H1: Locked at NLN

Intent Bit: Observing

Support: N/A

Incoming Operator: Travis

Shift Summary: All going well until 17:39 (10:39) unknown lockloss. Wind was coming down at the time and primary microseism was improving. Then the Z-axis shot up to 0.09um/s. It bounced around for about 30 minutes, and then dropped back down to about 0.01um/s. Nothing on USGS or SEIMON.

 

   Relocking has been a bit of a chore so far. Had to work on ALS X several times. After two attempts at DRMI_1F and PRMI states, had to go through CHECK_MITCH_FRINGES to get DRMI_1F to lock. Tweaked PRM and SRM to get a little better buildup.

 

   Things going well until a lockloss at ENGAGE_SOFT_LOOPS. Running buck up through the locking sequence. 

 

   Back in NLN after third attempt. There were no SDF differences to resolve after relocking.

 

After relocking, no further difficulties encountered during the shift.  

 

Activity Log: Time - UTC (PT)

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

17:39 (10:39) Lockloss – Unknown

20:13 (13:13) Relocked at NLN

20:14 (13:14) Back in Observing – NO SDF differences to resolve

20:45 (13:45) Switch to EARTHQUAKE mode for incoming EQ from Columbia

21:01 (14:01) Switch back to WINDY after Columbian EQ passed

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