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Reports until 07:31, Tuesday 02 December 2025
LHO General
corey.gray@LIGO.ORG - posted 07:31, Tuesday 02 December 2025 - last comment - 08:31, Tuesday 02 December 2025(88300)
Tues DAY Ops Transition

TITLE: 12/02 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
OUTGOING OPERATOR: None
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 2mph Gusts, 1mph 3min avg
    Primary useism: 0.03 μm/s
    Secondary useism: 0.30 μm/s 
QUICK SUMMARY:

H1's been locked 13.5+hrs with a range hovering around132Mpc and no squeezing.  There was a minor optics dust alarm at around 534amPDT (cleared in 10min).

Comments related to this report
corey.gray@LIGO.ORG - 07:43, Tuesday 02 December 2025 (88302)

1541:  For Maintenance Day, took H1's SEI_ENV to Maintenance (from NLN/noSQZ) & this resulted in a lockloss.

david.barker@LIGO.ORG - 08:31, Tuesday 02 December 2025 (88304)

I've bypassed some alarms:

Bypass will expire:
Tue Dec  2 02:30:20 PM PST 2025
For channel(s):
    H0:VAC-LX_GV7_ZSM179A_VALVE_ANIM
    H0:VAC-LY_GV5_ZSM159A_VALVE_ANIM
    H1:CDS-STAT_NUMBER_OF_ERRORS
    H1:DAQ-H1EDC_CHAN_NOCON
 

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