thomas.shaffer@LIGO.ORG - posted 07:49, Tuesday 30 September 2025 - last comment - 08:22, Tuesday 30 September 2025(87210)
Ops Day Shift Start
TITLE: 09/30 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Earthquake
OUTGOING OPERATOR: Oli
CURRENT ENVIRONMENT:
SEI_ENV state: EARTHQUAKE
Wind: 17mph Gusts, 14mph 3min avg
Primary useism: 1.28 μm/s
Secondary useism: 0.57 μm/s
QUICK SUMMARY: Lost lock just a bit ago due to a 6.9 earthquake in the Philippines. Maintenance starting a bit earlier because of this.
Looks like the SQZer unlocked at 1216 UTC this morning, relocking again and gettting back into Observing at 1220 UTC.
Reason for SQZ unlock was PMC PZT getting to the end of it's range at 100V.