TITLE: 01/15 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC

STATE of H1: Lock Acquisition

INCOMING OPERATOR: Travis

SHIFT SUMMARY: See alog 33317 and comments therein. After two locklosses at Lownoise ASC I started an initial alignment from scratch (as suggested by Sheila) by putting all the optics except RMs and OMs back to where they were last night (according to oplevs) when we had somewhat good range. My undertainty was less than 0.1 um yet the green flashes were terrible. I spent quite some time maximizing the green arm but after repeated failure when WFS came on I realized that PR3 was also terrible. I adjusted PR3, reworked the arms, then wrapped up the initial alignment and handed the IFO over to Travis.

I also played whack-a-mole with second harmonics violin modes tonight. But not sure if they will come back high after several locklosses.