Reports until 15:09, Tuesday 29 August 2017
H1 SEI (OpsInfo)
jim.warner@LIGO.ORG - posted 15:09, Tuesday 29 August 2017 (38429)
BRSY out of commission for a few days

I went to try to recenter BRSY today, but I had little luck. Looks like it's sitting in another difficult spot. I spent 5 hrs trying to recenter and barely out of range is the best I could do. It will drift further out of range as the box heats up again. I've left the damping off on the BRS and have turned off the outputs on the sensor correction paths that use the BRS. Right now, this probably won't prevent locking, but if someone tries to turn on the sensor correction at EY it will trip the ISI, as seems to have already happened once today. I've left the outputs of the appropriate sensor correction banks off, so please talk to me before "fixing" the ETMY ISI SDF or trying to change the ISI's controls configuration. I need a day to recover enough to try again, so I'll see if I can make another attempt on Thursday.