Reports until 07:38, Monday 27 April 2026
LHO General
ryan.short@LIGO.ORG - posted 07:38, Monday 27 April 2026 - last comment - 10:24, Monday 27 April 2026(90017)
Ops Day Shift Start

TITLE: 04/27 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: MAINTENANCE
    Wind: 9mph Gusts, 5mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.16 μm/s 
QUICK SUMMARY: The BSC2 (BS) cartridge is planned to be flown out of the chamber and onto the test stand in the LVEA West bay today!

Comments related to this report
david.barker@LIGO.ORG - 10:24, Monday 27 April 2026 (90018)

We have some cell phone alarm bypasses in place this week.

EY Chiller supply temp is above nominal, a contractor will work on this during the week.

Fire pumps are running intermittently to supply water for construction. These are only bypassed during construction hours.

Bypass will expire:
Sat May  2 07:05:16 AM PDT 2026
For channel(s):
    H0:FMC-EX_CY_H2O_SUP_DEGF
    H0:FMC-CS_FIRE_PUMP_1
    H0:FMC-CS_FIRE_PUMP_2