Reports until 16:10, Tuesday 25 July 2017
LHO General
thomas.shaffer@LIGO.ORG - posted 16:10, Tuesday 25 July 2017 (37760)
Ops Day Shift Summary

TITLE: 07/25 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Aligning
INCOMING OPERATOR: Ed
SHIFT SUMMARY:
LOG: Usually busy Maintenance Day, started initial alignment around 1:30 local and then the struggle began. While lock green arms, it would seem to be locked nicely for a handful of minutes, then Y arm would just unlock. I would redo the process and get the power up near .7, turn on the WFS, and then the power would drop down to near nothing a bit later. I got Jeff and Sheila involved at this point we would watch error signals and would close the WFS one by one to see what what happening, but have not come to a good conclusion yet. Handing off to Ed.