I ran an iterative tuning of the LSC feedforward today. The feedforward was already decent, but there was some room for improvement. The two attached screenshots compare injections from the new feedforward fit and the old fit. The only place to pay attention to moving forward is the high frequency coupling of SRCL, which may be effected by the large SRCL offset measured (and potentially corrected) today. If we see any >100 Hz noise coupling from the LSC, maybe we can do another iterative fit. I also injected in PRCL and the noise coupling has not changed, so the previous feedforward is just fine.

The new filters are in FM7 for both MICHFF and SRCLFF, and I updated the guardian.