TITLE: 12/07 Owl Shift: 0600-1530 UTC (2200-0730 PST), all times posted in UTC
STATE of H1: Aligning
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 9mph Gusts, 5mph 3min avg
Primary useism: 0.03 μm/s
Secondary useism: 0.28 μm/s
QUICK SUMMARY:
IFO stuck in initial alignment because SRM watchdog H1:SUS-SRM_M3_WDMON_STATE trip.
Watch dog tripped while we were in Initial alignmnet not before, and was not due to ground motion.
I logged in discovered the trip. Reset the watchdog and reselected myself for Remote OWL notifications.
SUS SDF drive aligh L2L gain change accepted.
Just commenting that this is not a new issue. TJ and I were investigating it earlier and had early thoughts that SRM was catching on the wrong mode during SRC alignment in ALIGN_IFO either during the re-alignment of SRM (pre-SRC align) or after the re-misalignment of SRM. This results in the guardian thinking that SRC is aligned, which results in saturations and trips because it's actually not. Again, we think this is the case as of 11/25 but still investigating. I have an alog about it here: 81476.