While adjusting the SR3 alignment today I was checking in on the ITM HWS. I mistakenly thought we had managed to find a better alignment, as the self heating from the IFO beam on HWSX had moved away from the clipped region. Turns out this was not the case. It seems during maintenance yesterday the alignment of both HWS got shifted.

HWSY was shifted very slightly, taking new references sorted that out.

HWSX however got moved more, see attached picture. We might be able to get away with just retaking references and adjusting the mask/centering. If not we'll have to adjust the alignment on to the camera.

Given that the HWS alignment wasn't better, I changed the SR3 alignment back to nominal, rather than what I thought were better values today.