shift started with PRM satellite box swaps (8/31 23:00 - 9/1 00:10UTC, one hour)
relocking issues: 9/1 00:10UTC to 5:14UTC
- alignment that I corrected without a full realignment (9/1 ended 1:00UTC)
- delays by BS ISI being tripped - happened twice (ended 2:14UTC)
- delayed by SR3 glitching, preventing IFO from going to CARM_5PM (2:14UTC to 5:14UTC)
Having called Vern, Richard, Dave: 5:14UTC
Dave restarted h1nds1, so it's back
- option later tonight is to power cycle the computer and then log in and restart the process
Richard
- options are to power cycle AI chassis and or coil drivers for SR3
- and then change the coil driver if power cycle doesn't work
Vern
- ok to call off PWL shift if no SR3 fix and therefore no locking
- have emailed Jim who's on OWLs, to let him know
Currently:
Sheila and Jenne out to LVEA to power cycle AI chassis and coil driver on SR3 (5:46UTC)
rebooted AI and coil driver - no fix
- no change
powering off AI for a few minutes 6:08:11UTC
- voltmon power spectra shows T2 noise is now gone
AI chassis swapped out 6:24UTC
- SR3 looks better, going to CARM_10PM to look at it there
Anamaria's comment about voltmon:
when moving SR3 at DC using the alignment sliders we see 1urad of pitch on M0 shows up as 0.5 urad pitch of oplev and 2 cts of voltmon.