TITLE: 06/08 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Corrective Maintenance
INCOMING OPERATOR: None
SHIFT SUMMARY: Spent the entire shift getting through Initial Alignment. Major by-hand alignment required at every step of IA. Things are still drifting as a result of temperature excursion during power outage. But we made it . . through IA that is.
LOG: 8 hours of aligning
We were able to engage vertex angular loops and hard arm loops without issue. The soft arm loops pulled the recycling gain up but made the sideband powers drop. This may indicate the PRM pointing loop is fighting the soft loops.
Violin modes are still high (about where they were on Friday) and will need attention if we want to engage DCPD whitening.
One of the problems we encountered was that the X arm alignment was so far off when we started that the ITM camera image was clipped on the digital aperature, and the servo appeared to be running but didn't bring the spot to the reference position. Travis moved the ITM by hand to fix this.