Reports until 07:34, Tuesday 15 July 2025
LHO General
thomas.shaffer@LIGO.ORG - posted 07:34, Tuesday 15 July 2025 - last comment - 11:56, Thursday 17 July 2025(85760)
Ops Day Shift Start

TITLE: 07/15 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Preventive Maintenance
OUTGOING OPERATOR: Ibrahim
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 15mph Gusts, 9mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.14 μm/s
QUICK SUMMARY: We've only been at low noise for 20 min, but magnetic injections are running now. Maintenance day today.

Comments related to this report
thomas.shaffer@LIGO.ORG - 11:56, Thursday 17 July 2025 (85824)
Link

Maintenance was delayed by 1 hour this day due to a Fermi GRB notice (E581020) that we received on site a few minutes before 1500UTC. We were not in Observing at the time, but we were in a low noise state. I brought us back into observing at 1510UTC where we stayed until one hour after the initial BRD notice.