I updated the LSC CAL CS filters with changes to the MICH, PRCL and SRCL actuation. This ensures that we can accurately use the CAL CS channels to understand the LSC noise coupling to DARM, among other benefits.

For PRM and SRM (PRCL and SRCL actuators), the big change was Gabriele's improvement of the offload filters on M1. I rearranged filters in the CAL CS bank to line up with the filters as they are in the mirror locking bank. All the changes occured in the CAL CS control path M1 filters for PRM and SRM- I moved the M2M3lock and sus_um filters to be in FM3 and FM4 respectively, and rearranged the current offloading filters into FMs 1, 2, 6, 7 and 10 to match PRM/SRM offloading structure. As a reminder, PRCL and SRCL actuation occurs from M3 and M1, and there is a gain of 10 in the M2 locking bank but the lock outswitch is OFF.

For MICH, I incorrectly included an M3 locking filter, the 200:1 filter, but Sheila showed me that cancels out something in the ISC input signal bank, so that is not necessary to account for. More importantly, I engaged the sqrt(1/2) filter that accounts for our MICH actuation from the beamsplitter. I also rearranged filters according to their placement in the beamsplitter locking banks.

I also found some output switch off in the SRM CAL CS bank, so I engaged that.

I have SDFed these changes accordingly, see attached screenshots.

I have also attached screenshots of the LSC CAL CS filter banks for the BS, PRM and SRM control. Reminder, these settings are SDFed in SAFE only.