TITLE: 02/26 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: TJ
SHIFT SUMMARY: The winds calmed down to the 20s and lower around 6 but locking issues persisted, the 2ndary microseism is still at or above the 90th percentile, so that wasn't helping us. There was a dolphin glitch but Dave helped me to get everything up and running. I just finished an IA as of the end of the shift.
LOG:

• 01:10 UTC Initial alignement
• I saw a repeat (noisy PR_GAIN and LSC_POPAIR) of what Corey saw yesterday each time we went through OFFLOAD_DRMI_ASC, SRM and SR2 saturations (alog82997). I held in that state for a few minutes but we then lost it at CHECK_AS_SHUTTERs a few times. Each acquisition the shaking got a little lessened, and there were less suspension saturations. Then on acquisition 6 I forgot to pause at the state and we continued on and it was all good, there were also zero suspension saturations this time but there the shaking/fuzziness was still present.
  • I was looking at the ASC_OVERVIEW medm while this was happening and noticed that the TMS's output was higher than typical? Especially TMSY in P & Y. Maybe this is related to the fact that ALS_Y wouldn't/couldn't converge earlier?
  • 03:48 UTC OMC_WHITENING, the violins are kinda high so we're gonna be damping for a little bit, I also restarted the DARM diaggui as it timed out.
• 04:14 UTC lockloss from a dolphin glitch, HAM1 HEPI tripped, iopsush34 and ioplsc0 have DACKILLs alog83057
  • 04:45 UTC I started recovering SEI and SUS, oddly after I untripped HAM1 HEPI it retripped pretty quickly, then it was fine the 2nd time.
  • 05:05 UTC I tried normal locking couldn't find IR so I decided to do another IA
    • Got stuck at INPUT_ALIGN XARM_IR
    • PR2 was soooooo far off after the restart. I had to move PIT by 140 and YAW by 3080!