jim.warner@LIGO.ORG - posted 03:32, Wednesday 18 December 2019 - last comment - 18:12, Wednesday 18 December 2019(53955)
INJ_CW_GAIN taking IFO out of Observe
We were just knocked out of observe twice by something adjusting the CAL-INJ_CW_GAIN, the first time it was set to 0 at 11:21 utc, then again when it was set to 1 again at 11:27. I don't know if this was intentional, done by a guardian. The only remotely connected person I see is Keita, no one else is here. If this is being adjusted by some guardian should we unmonitor this gain?
I haven't found any guardians that turned off that gain, and trending the inputs and outputs just confused me. For some reason the frequency of the signal seems to be ramped up after the gain was turned back on. The gain has a tramp of 10seconds, and the frequency ramp seems to go on for minutes.
CDS, is this the inj machine restarting the injections?