Yesterday, we installed the ITMY elliptical baffle to see how it looked wrt the ITMY-SR3 IFO AUX simulation beam.  Unfortunately, after suspending it and tweaking the few top weights to try to center up the EQ stops as best as possible, the baffle target showed it was misaligned by 1cm from the beam.  Between this and the mystery miscentering on the BS elliptical baffle, we decided to move away from this arm of alignment work, and move on to see what other surprises turn up in the ITMX to PR3 simulated beam alignment path.  (Will consult with baffle docs and experts to review aligning the elliptical baffles if needed after we see corroborating stories between the AUX beam and the PSL beam heading our way soon.)  We:

- moved the AUX laser setup from the ITMY chamber to the ITMX chamber

- installed and carefully aligned the centering target on the ITMX

- removed the new baffle panel from the PR3 sus frame

- installed and carefully aligned the centering target on PR3

- installed the ITMX elliptical baffle

- removed the temp laser barrier between HAM3 and BSC2

Note, we did not suspend the ell baffle since we need to finish putting the balance weights on.

...to be continued.

Betsy, Travis, Jason, Jenne, TJ