Today I pushed calibration report 20251016T180834Z which was just taken in alog 87512. My motivation was due to what appears to be an incorrect kappa c value that I reported here 87453. We have also moved the beam spot on ETMY due to a camera bump, reported here 87473 and here 87508.

Note, I did not update the L3 drivealign gain in the model. That number is still changed in the actual suspension gain, but not in CALCS or in the pydarm ini file.

I also noticed that, maybe due to the beamspot change, there is an antispring present in the sensing function that maybe we should correct.

I followed the usual steps to commit, upload and export. I loaded the calcs model and accepted the SDF diffs. I confirmed things look good by checking the broadband measurement. Calibration is within +-2%. Kappa C is back to 1-ish. This is not as good as the Aug 28 push, but it's still pretty good overall.