23:32 Adjusted fiber polarization for Y arm and tweaked X arm as well
23:35 /ligo computer crash, momentarily interrupted work stations and internet.
00:05 Robert out to EY. OpLev Damping L2 P gain ramped to 0 from -300.
00:39 a2l_min_LHO.py
00:42 script done
00:47 a2l_min_PR2.py
00:48 set observatory mode to 'commissioning' about 1 hour late.
00:50 script done
00:53 00:39 a2l_min_PR3.py
00:57 script done
01:28 damping violin modes: ETMY mode7 and ETMX mode4.Y- Mode 7; I changd gain from -20 to -60 significant damping occurred. X-Mode4 reversed phase from +60 to-60 and changed gain from -18.343 to -150. It seemed to be damping slightly but then returned.
02:37 after reverting ETMX Mode4 phase and changing gain to -120.343, the RMS value has come down to 4.42 from 4.59. I'm not sure if this is my doing or just a normal ringdown.
05:54 PI mode 27 ringing up. changed phase from 150˚ to 80˚.
05:08 Lockloss. Turning BRS back on at EY. Also, OpLev damping re-enabled back to -300 gain.
06:59 Turning over to TJ