Reports until 16:22, Thursday 10 March 2022
H1 TCS
camilla.compton@LIGO.ORG - posted 16:22, Thursday 10 March 2022 - last comment - 11:14, Friday 11 March 2022(62168)
Hartmann plate reinstalled on HWS ITMY, Ring Heater test tonight.

In an attempt to get rid of the small pieces of dust on the HWS camera image (original photo), I used the puffer to blow a few small pieces of dust off the final steering mirrors, then realized majority were coming from the green filter (photo with no filter).  I swapped to a new YS2-1025 filter which still had some spots on (photo). If it seems to make a difference we can look at cleaning these. 

I re-installed the Hartmann plate removed in alog 62064 when troubleshooting the line on the ring heater test. I will run another 0.5W ITMY ring heater test tonight 1am-4am.

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camilla.compton@LIGO.ORG - 11:14, Friday 11 March 2022 (62183)

Results of ring heater test attached. Overall the arrows look good the image is just contaminated by a few strange lines. Two things to try: clean the green filter (or run a RH test with the filter removed and ALS shuttered to test if this is the cause), rerun dark pixels script. 

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