oli.patane@LIGO.ORG - posted 07:40, Wednesday 13 August 2025 - last comment - 08:25, Wednesday 13 August 2025(86334)
Ops Day Shift Start
TITLE: 08/13 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 151Mpc
OUTGOING OPERATOR: Tony
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 3mph Gusts, 0mph 3min avg
Primary useism: 0.02 μm/s
Secondary useism: 0.12 μm/s
QUICK SUMMARY:
Currently Observing at 153 Mpc and have been Locked for 10 minutes
Last night's lockloss at 2025-08-13 12:59UTC has no obvious cause, but I did notice that the dumped power into HAM6 is an interesting shape, with two bumps instead of the usual one. However, I did find a lockloss from 2025-07-28 03:13UTC whose power has the same shape, so it's probably just an alignment thing, especially since the last lockloss was positioned in such a way that the fast shutter didn't even need to fire (86325).