TJ, Dan B., Danny V. 

• As noted in Aidan's alog we have been seeing some strange behavior on the ETMY HWS. When we increase ifo input power we see the measured spherical power on ETMY decrease.
• We suspect that this may be some stray 1064 nm beam making it's way to the CCD as we have seen something similar in the ITMX HWS spherical power trend data before adding a bandpass that would fix the issue.
• We are installing a 520 nm bandpass filter in front of the ETMY HWS CCD which should block out any stray IR beams and only pass ALS and the ETMY HWS LED beams.