Today I continued poking at ITMy to address a couple of minor issues on our way to final alignment. First, I replaced a wonky flag mount for the R0 Side BOSEM (poor pressfit of magnetic disc not allowing flag magnet to seat squarely). I then adjusted the tablecloth to get it back to a more 'nominal' state where the BOSEM cams still have effective adjustment left. I then continued with the Test Mass pointing. I adjusted yaw of M0 by using some slop in the fixing screws for the suspension wire clamp at the Top Stage blades. I also adjusted some more pitch out using the UIM pitch adjusters. (Reminder at Betsy's request: The UIM pitch adjusters have an effect of ~200µRad per full turn of each adjuster.) The resulting measurement by IAS left ITM at:
Pitch: ~5µRad up
Yaw: ~1.04mRad CW (previously ~185µRad CCW)
Although I overshot, I now know that we have plenty of easy-to-use yaw adjustment at the wire clamp to fix the yaw error. This work will continue tomorrow. I then solicited Mark to run some quick TFs to check for rubbing before we get too carried away with fine alignment.