During initial alignmet this morning, I was unable to get SRY to lock. I could move SRM to maximize AS_A and the AS air camera flashes looked pretty good. To maybe save time, I ended up just moving past this state to see if we could lock without it. Sheila looked later and saw that there was no fringing seen on H1:ASC-POP_A_NSUN_OUT_DQ during the time SRY was trying to lock. It's possible we've fallen off POP A, and Sheila suggests that we move to AS_A or similar.
If we move to a different sensor for this part, we will need new trigger thresholds. I don't think it would be too difficult to come up with some numbers based on past SRY acqusitions, then we can test it out another time since we've relocked at this point.