Dhruva, Naoki, Nutsinee

We had power mysteriously dropped out of PDA multiple times after adjusting the half wave plate on SQZT7 so we went hunting for lose optics. We found a lose beam splitter cube mount on the LO path so we tighten that but it didn't fixed the problem. We accidently discovered that if we pushed PDA we got the power back. We suspect PDA came lose from the circuit board. HD DIFF has been readjusted.

Today's Fringe visibility on 

PDA is 0.986

PDB is 0.985