Reports until 17:30, Saturday 26 July 2025
LHO General
corey.gray@LIGO.ORG - posted 17:30, Saturday 26 July 2025 (85999)
Sat EVE Ops Transition

TITLE: 07/27 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Observing at 155Mpc
OUTGOING OPERATOR: Ibrahim
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 15mph Gusts, 8mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.05 μm/s
QUICK SUMMARY:

H1 has been locked 3.5+hrs.  Environmetnally, pretty quiet after the big afternoon EQ; winds are dropping, µSeism is low (touching the bottom of the screen!).

There is a question of To Run Or Not Run a calibration.  H1 is now thermalized (and a recent Short GRB standdown time Ibrahim had has expired).  Reached out to LLO, but I'm guessing they are on Autopilot for the night.  Ibrahim through out the idea of a calibration, and I think we'll just keep an eye on L1---if they lose lock, will run one.  (Or we can wait to coordinate a Calibration tomorrow.)