aLIGO LHO Logbook

H1 General

ryan.crouch@LIGO.ORG - posted 07:35, Wednesday 22 May 2024 - last comment - 11:09, Wednesday 22 May 2024(77977)

OPS Wednesday day shift start

TITLE: 05/22 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Lock Acquisition
OUTGOING OPERATOR: Corey
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 21mph Gusts, 17mph 5min avg
    Primary useism: 0.04 μm/s
    Secondary useism: 0.14 μm/s
QUICK SUMMARY:

14:20 UTC lockloss, likely from the wind
The wind is starting to pick up

Comments related to this report

ryan.crouch@LIGO.ORG - 09:02, Wednesday 22 May 2024 (77978)

Link

Back to NLN at 15:20UTC and back into Observing after some SQZer aligning at 16:02 UTC

ryan.crouch@LIGO.ORG - 09:17, Wednesday 22 May 2024 (77979)

Link

Lockloss at 16:16 UTC just before 1 hour of lock time, HAM6 verbal callout before?

jim.warner@LIGO.ORG - 11:09, Wednesday 22 May 2024 (77984)

Link

HAM6 ISI saturations during a lockloss are fairly common. Fast shutter launching can cause a handful of GS13 and actuator saturations, which is probably what the HAM6 verbal notification was for.