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Reports until 16:14, Saturday 15 February 2025
LHO General
ibrahim.abouelfettouh@LIGO.ORG - posted 16:14, Saturday 15 February 2025 - last comment - 17:05, Saturday 15 February 2025(82830)
OPS Eve Shift Start

TITLE: 02/16 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Lock Acquisition
OUTGOING OPERATOR: Ryan S
CURRENT ENVIRONMENT:
    SEI_ENV state: USEISM
    Wind: 3mph Gusts, 1mph 3min avg
    Primary useism: 0.04 μm/s
    Secondary useism: 0.60 μm/s
QUICK SUMMARY:

IFO is in LOCKING

Having a lot of issues, starting with a LL due to a failed Cal Sweep. Since then, DAY Ops (Ryan S) has experienced locking issues at ALS, IR, DRMI and TRANSITION_ETMX. Interestingly, despite high microseism, ALS locking doesn't look noisy and IFO seems to lose lock without evidence of high ground motion.

Will continue investigating, troubleshooting and locking.

Comments related to this report
ibrahim.abouelfettouh@LIGO.ORG - 17:05, Saturday 15 February 2025 (82831)

Back to OBSERVING as of 01:04 UTC

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