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Reports until 14:38, Saturday 01 October 2016
H1 ISC
stefan.ballmer@LIGO.ORG - posted 14:38, Saturday 01 October 2016 (30140)
Bonce mode damping on ITMY not woking.

The bonce mode was rung up vey high today (>1e-13m RMS in DARM). Worse yes, anything I tried to do just seemed to make it worse.

I tried both previous settings (see Keita's and Jenne's alogs below), but I was just ringing it up more.

The measured frequency today was 9.8320+-0.005Hz.

In the end it was so bad that the ITMY kept saturating, so I decided to leave the interferometer down for a feq hours.

Keita's elog on ITMY damping: 27680

Jenne's elog on ITMY damping: 29888

Bonce mode frequencies: alog 27714 (old 18440).

Displaying report 1-1 of 1.