Sheila, Matt, Jenne, Travis, Kiwamu

We went to ISCT1 because we were not finding the beatnote even when we moved PR3 back to its old alignment and we had aligned the X arm using WFS and the camera.  It turned out that the COMM beatnote diode was saturated, so we reduced the power using the half waveplate and PBS in the SHG path.  We realinged the beams, and ended up with a beatnote power of about 4dBm.  

We might need to readjust this once we have a good alignment of the full IFO to get a good reference.

Also, it seems like we have less DC light on AS AIR, so we might need to adjust its alignment again.  To get through the SRY alignment, I lowered the threshold for SRY triggering from 30 to 20.