Reports until 16:20, Saturday 16 August 2025
LHO General
corey.gray@LIGO.ORG - posted 16:20, Saturday 16 August 2025 (86405)
Sat EVE Ops Transition

TITLE: 08/16 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Observing at 155Mpc
OUTGOING OPERATOR: Ryan C
CURRENT ENVIRONMENT:
    SEI_ENV state: SEISMON_ALERT
    Wind: 24mph Gusts, 12mph 3min avg
    Primary useism: 0.06 μm/s
    Secondary useism: 0.20 μm/s
QUICK SUMMARY:

H1's been locked ~1.5hrs and we continue to have the fairly constant breeze hovering around 20mph (with some gusts over 30mph--no doubt contributing to the locklosses today perhaps).

Ryan was not able to run the Sat calibration due to locklosses and not having a thermalized H1.  If L1 happens to have a lockloss this evening, I can run one (otherwise, we waiting game/TOI).

Microseism has been trending up the last ~12hrs (currently flattened out above the 50th percentile....it had been below it).  Perhaps this has teamed up with the winds for the locklosses today.  (Have a standard M5.5 Tonga EQ inbound, and just transitioned to EQ Mode.  So have winds + increased microseism + incoming EQ).  Been a while since we've juggled multiple seismic sources.