Overall, an easier time to get to low noise. Had a minor issue with SRY locking in initial alignment, but Sheila and I measured the OL gain and it looks like we needed a bit more. Now sitting at 116Mpc.
Initial Alignment:
- Green - Only needed a few slider clicks for ETMX P, but ETMX needed a few urads in both P and Y.
- MICH Bright - Had to let it sit in DOWN for a bit longer than it normally does on its own. I increased the "chill_out" timer in INIT_ALIGN from 60 to 75.
- SRC - SRY didn't want to lock, on its own. Sheila had mentioned that we may need to up the gain for SRXY, so after measuring an OLG (attached) we uped it by around ~30%.
Locking:
Attempt1
- Green alignment, there was still a bit of ground motion at the time so ALS was moving around but staying locked.
- Guardian automatically brought it to PRMI, locked, and then locked DRMI. This is where it dropped the lock, not sure why.
Attempt 2
SDFs:
Many rounding errors and one polarization adjustment that I just reverted, as this shouldn't matter.