ibrahim.abouelfettouh@LIGO.ORG - posted 07:40, Monday 21 October 2024 - last comment - 08:07, Monday 21 October 2024(80789)
OPS Day Shift Start
TITLE: 10/21 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Corrective Maintenance
OUTGOING OPERATOR: Ryan C
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 9mph Gusts, 3mph 3min avg
Primary useism: 0.02 μm/s
Secondary useism: 0.11 μm/s
QUICK SUMMARY:
IFO is in MAINTENANCE due to NPRO and AMPs being disabled likely because of some power fault. Seems like the OWL shift was quite busy and that there are some PSL and LASER_PWR issues - will try to figure out what was going on.
Dave, Ibrahim
A significant power glitch on all 3 phases occured at 4:15:48 Local. PSL power issues Ryan C had were due to this (alog 80782). Plots below.