WP13680. TJ, Camilla

When we started, the ALS beam hit the bottom periscope mirror high.

There is circles on the CCD camera indicating dust on some optics. We inspected and found a piece of dust on the bottom periscope mirror we could n to remove. We found a spare of this mirror but have not made the decision to swap or not yet.

Moved Pico 8 which is HWS X M1. We found the edge of the beam (crooked clipped) at +500 X and +1000 Y., then fell off around -2000. Leaving at X -100, Y -1017. With just this mirror we still had a lot of baffle in the camera view. 

TJ then moved the lower periscope mirror pico and could make the baffle take up less of the CCD with the beam staying well centered. Photo attached.