Reports until 07:49, Friday 13 June 2025
LHO General
ryan.short@LIGO.ORG - posted 07:49, Friday 13 June 2025 - last comment - 08:36, Friday 13 June 2025(85011)
Ops Day Shift Start

TITLE: 06/13 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: 12mph Gusts, 5mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.13 μm/s
QUICK SUMMARY: Looks like H1 unlocked at 14:00 and just finished up running an initial alignment. Starting lock acquisition now.

Comments related to this report
ryan.short@LIGO.ORG - 08:36, Friday 13 June 2025 (85013)ISC

The cause of the range drop and eventual lockloss this morning appears to be from the problematic roll mode we've been seeing recently (see alog84982).

If I see that it's still rung up once H1 relocks, I'll apply the damping gain of 30 that seemed to work yesterday evening.

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