Reports until 16:12, Sunday 14 September 2025
LHO General
ibrahim.abouelfettouh@LIGO.ORG - posted 16:12, Sunday 14 September 2025 (86918)
OPS Eve Shift Start

TITLE: 09/14 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Corrective Maintenance
OUTGOING OPERATOR: Ryan S
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 10mph Gusts, 6mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.12 μm/s
QUICK SUMMARY:

IFO is DOWN for CORRECTIVE MAINTENANCE

Ryan S has tried an exhaustive combination (I will link the alog when posted) of lock attempts to get beyond where we were yesterday, which was losing lock upon loading the matrix necessary to get from CARM_5_PICOMETERS to CARM_TO_REFL to RESONANCE.

I don't have any ideas of what to try but will be in communication with comissioners.