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Reports until 13:48, Tuesday 05 February 2019
H1 TCS (AWC, TCS)
daniel.vander-hyde@LIGO.ORG - posted 13:48, Tuesday 05 February 2019 (46787)
SRM heater alignment update (Now aligned in yaw. Clipping is no longer an issue)

TJ, Marie, TVo, Danny

TJ set up a temporary rail for the table to slide along to avoid the table from changing angle of incidence on the first in-vaccum mirror when shifting the table position.

After shifting the table a bit more to the left of where we nominally were trying, we were able to pass the CO2 beam through the ifo beam position in yaw (using the procedure detailed in alog 46766). I forgot to take photos of the red alignment laser position on the Zn-Se viewport and SRM-HR baffle but I'll supplement this post with those photos as a comment next Tuesday.

There was quite a bit of pitch motion/drift on the AS_A_DC and AS_B_DC pds. Not very clear why this was, but the motion made it difficult to verify the pitch alignment was still good. We might have to double check next Tuesday (or sooner if there is a need to test) but I suspect that we are nominally in a good position in pitch since we made very little changes. 

 

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