Displaying report 1-1 of 1.
Reports until 08:03, Tuesday 03 September 2019
H1 General
travis.sadecki@LIGO.ORG - posted 08:03, Tuesday 03 September 2019 (51694)
Ops Owl Shift Summary

TITLE: 09/03 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Preventive Maintenance
INCOMING OPERATOR: TJ
SHIFT SUMMARY:  Rough shift for locking, much like the past several days.
LOG:

Ran Initial Alignment.  After IA completed, would either lose lock at FIND_IR or it wouldn't be able to find COMM IR.  I tried adjusting the COMM offset like usual, but could never find resonance.  After a few attempts at this, I re-did IA thinking that perhaps it didn't finish correctly although I didn't notice anything out of the ordinary during the sequence.  After second IA, IR locked and moved on. 

After several attempts at locking and struggling to get past DRMI, H1 went all the way to NLN in a single attempt. 

Looking at the last 3 relocking periods that are shown on the range plot on the wall, they are almost identically ~4 hours long.  Interesting, but not necessarily in a good way.

Displaying report 1-1 of 1.