corey.gray@LIGO.ORG - posted 07:40, Monday 23 March 2026 - last comment - 09:17, Monday 23 March 2026(89589)
Mon Day Ops Transition
TITLE: 03/23 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
OUTGOING OPERATOR: None
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 4mph Gusts, 2mph 3min avg
Primary useism: 0.02 μm/s
Secondary useism: 0.22 μm/s
QUICK SUMMARY:
Arm (GV5/7), FC gate valves closed (GV7 is soft-closed, waiting to cam over). Cleanroom move this morning. Lots of activity around the Y-Beam Manifold begins!
As part of our investigation into h1ioplsc0 timing glitches since last week's h1lsc model change, I restarted all the models on h1lsc0 at 08:07 PDT this morning.
I've extended the alarm bypass on GV7 for another 24 hours.
Bypass will expire:
Tue Mar 24 09:17:05 AM PDT 2026
For channel(s):
H0:VAC-LX_GV7_ZSM179A_VALVE_ANIM