Reports until 11:17, Thursday 25 July 2019
H1 SUS (OpsInfo)
thomas.shaffer@LIGO.ORG - posted 11:17, Thursday 25 July 2019 (50821)
A note on damping the violins during the recovery

I found a few different settings that worked depending on the power in the IFO. At 2W of inpout power, ETMY Mode1 +60deg with -0.2 gain and Mode 6 +0deg 1.2 gain (could have been higher probably). As soon as the power began to increase, these ran away.

At 37W, I only had Mode1 +60deg and as much gain as I was comfortable with (~+1.2). This damped both modes.

ITMY Mode 13 is still a bit high, but since we are observing and teh filters are montitored in SDF I will leave it for now.