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Reports until 16:09, Tuesday 23 September 2025
LHO General
ibrahim.abouelfettouh@LIGO.ORG - posted 16:09, Tuesday 23 September 2025 (87111)
OPS Eve Shift Start

TITLE: 09/23 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Preventive Maintenance
OUTGOING OPERATOR: Ryan S
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 11mph Gusts, 4mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.14 μm/s 
QUICK SUMMARY:

IFO is NLN and OBSERVING as of 22:56 UTC

Maintenance went slightly long after IOT2L Beam Profiling, requiring us to pico to get bacvk onto IMC WFs.

Additionally, there were SQZ issues relating to the filter cavity not being able to lock potentially due to reset HAM7 FC1 slider values.

Note: Annulus pump running near HAM6 (alog 87101).

Hoping to stay in Observing!

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