Reports until 08:55, Tuesday 07 October 2025
LHO General
corey.gray@LIGO.ORG - posted 08:55, Tuesday 07 October 2025 - last comment - 12:59, Tuesday 07 October 2025(87334)
Tues DAY Ops Transition: Maintenance Day

TITLE: 10/07 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Lock Acquisition
OUTGOING OPERATOR: TJ
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 2mph Gusts, 1mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.13 μm/s 
QUICK SUMMARY:

First things first, at Camilla's request, I did a PAUSE for TCS_ITM[x/y]_CO2_PWR Guardians---this was for a possible Matt T. test (he just walked in and was hoping for a recently-thermalized H1, but H1is only at NLN for 1.25hrs (he's contacting Sheila).

Other than that, preparing for Maintenance!

P.S. There was a dust alarm for one of the Optics Labs when I arrived

Comments related to this report
corey.gray@LIGO.ORG - 12:59, Tuesday 07 October 2025 (87347)

Notes On H1 Overnight:  NO Wake-Up Calls; Lockloss down from 1131-1331utc (due to earthquake dropping H1 +L1); Reacquisition AUTOMATIC (no alignment run); H1 was then locked about 90min before it was intentionally unlocked for Maintenance.