Reports until 08:51, Saturday 02 May 2015
H1 SUS (DetChar, ISC, SUS)
jeffrey.kissel@LIGO.ORG - posted 08:51, Saturday 02 May 2015 (18170)
Turned on 504.8 Hz Violin Mode Damping
J. Kissel, J. Warner

Hooray for Nutsinee!

Jim noticed the the same 504.8 Hz violin mode that was giving us trouble is on the higher side, so I've turned on the H1:SUS-ITMY_L2_DAMP_MODE2 damping loop, with a little bit of gain to ensure it doesn't ring up any further. I may get another DARM open loop gain measurement and try Ed's Stochasic injection later in the day, but for now (other than violin mode damping) I'm going to leave it undisturbed.

Good luck H1!