Betsy, Nutsinee
LLO recently found their HWS mirrors to be contaminated (LLOalog27041). So we went to the table to take a look at our mirrors and took some pictures.
The mirrors are dusty overall and periscope mirrors show sign of coating degradation (I assume that the watermark-looking patterns are coating defects) Betsy later explained to me those marks are leftover marks from First Contact. See below:
HWSX bottom periscope mirror
HWSX top periscope mittor (sorry I wasn't able to get a good shot)
HWSX STEER M7 and STEER M8
HWSX STEER M6 with flash light shined through the back.
HWSY bottom periscope mirror
HWSY top periscope mirror
HWSY periscope mirror with flash light shined through the back
HWSX return beam (without Hartmann plate)
HWSY return beam
HWSX has been giving us data that makes sense. HWSY data however makes no sense. I forgot to stop the code when I took the Hartmann plate out and in and somehow that caused the scripts to think that there were only few hundred peak counts when everything was closed out. I re-initialized the reference images for both HWSX and HWSY. Every necessary optics were aligned and CO2 heating power was set for 2 W PSL input.