We were sitting around arm powers of 6, and that loop measurement had finished. I was about to go down to arm powers of 5ish, but we lost lock. I'm not sure why. There's some slow stuff going on in some of the servos, but nothing jumps out at me as a loop oscillation. It does however kind of look like the PRMI lost lock just before the arm powers went down? Perhaps this somehow triggered a lockloss?
The time is 1101721675.
Wide view plots:




Zooms:




We're stopping for tonight because ETMX is back to its lame-o jumping around. I went in and squished the cables, but it's still happening.
Also, the FSS PC drive has been high the last few minutes (only starting after we quit for the night). When the MC re-locks, it sounds like an ocean wave dying out as the noise goes down a little bit. But, after a few minutes, it'll get mad again and unlock the MC.
Also, also, I noticed this on Monday with Diego, but the LSC-ALS[x,y] filter module gains sometimes mysteriously get set to zero. WTF? Eric and I have both independently checked, and we cannot find a single script in the scripts directory with the string "LSC-ALS", so we aren't deliberately changing those. Does anyone know what might be going on here? |