Reports until 07:52, Friday 20 March 2026
LHO General
corey.gray@LIGO.ORG - posted 07:52, Friday 20 March 2026 - last comment - 08:51, Friday 20 March 2026(89576)
Fri Ops Day Transition

TITLE: 03/20 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: 32mph Gusts, 27mph 3min avg
    Primary useism: 0.03 μm/s
    Secondary useism: 0.14 μm/s 
QUICK SUMMARY:

Moves starting in the lvea and in the schedule there is the possibility of closing Gate Valves today.  IMC_LOCK is DOWN and ISC_LOCK is in IDLE.  Had Lab dust alarm at 609am (due to cleaning?).

Comments related to this report
corey.gray@LIGO.ORG - 08:13, Friday 20 March 2026 (89577)

Randy was thinking of craning the cleanroom spreader bar over the Y-Beam Manifold in prep for a cleanroom move next week, but he checked its weight (510lbs!) and it is right at the limit (500lbs) for allowable lifts over the beamtube with open gate valves, so this will have to wait until gate valves are closed.  He'll roll a scissor lift into position in the meantime.

corey.gray@LIGO.ORG - 08:51, Friday 20 March 2026 (89579)

As of about 845am local time, X-arm & Y-arm look passable, but winds are supposed to pick up in the early afternoon (currently winds are just under 30mph at the Corner).