Sheila, Alexa, Lisa, Kiwamu

Today we went back to locking SRY as described in 13726, to try make sure we have some reasonable crossovers for the SRC actuation.

First we adjusted the phase for AS_45, to -71.9.  We also had to flip the sign, so we are now locking with a gain of -400 in SRCL. 

we are using a gain of 1 in SRM and SR2 ISC INF. 

After talking to Ryan we moved the 27 Hz notch to the SRM M2 lock filter, and disengaged the 27Hz notch in SRM ISCINF.  This keeps the DAC from saturating at the 27 Hz vertical mode, without causing a notch in the open loop gain.  

We have a ugf of about 30 Hz, measurements in the SRM path and the SRM M2 path are also attached.  It seems that we do not ring up the vertical mode in SR2 as easily as we ring it up in SRM.