Sheila, Jenne, Camilla, Jennie, Jim, Rahul, others

We continue to struggle to understand why our alignment in our output arm is suddenly so bad and cannot get back without massive offsets and noise introductions. Jim and Rahul have each looked at their respective subsystems and given the OK. Somehow our alignment have moved in the last 30 hours and we cannot recover it. Here are some summary bullets from the morning:

• Unlocked the IFO trying to step the AS_C offset in Y, happened after only one step of 0.05
• Locked SRC then stepped the AS_C offsets back to 0. Still bad alignment though
• Decided to revert all sus alignment to 2024-04-19 05:36 UTC and run initial alignment. This didn't magically solve our problems and we are still needing a large offset in AS_C and SR2 to get SRC to lock. AS_A power is still lower than from a few days ago.
• Tried moving SR3 and SR2 to help increase our AS_A power. Started around 25% lower than our normal, ended up around 13%.