ryan.short@LIGO.ORG - posted 07:34, Friday 24 October 2025 - last comment - 13:28, Friday 24 October 2025(87710)
Ops Day Shift Start
TITLE: 10/24 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Corrective Maintenance
OUTGOING OPERATOR: None
CURRENT ENVIRONMENT:
SEI_ENV state: USEISM
Wind: 8mph Gusts, 6mph 3min avg
Primary useism: 0.04 μm/s
Secondary useism: 0.62 μm/s
QUICK SUMMARY: H1 was down overnight due to ongoing locking issues. I'll start by running through an initial alignment while I get caught up on events of the past couple days.
- Wind low, microseism steady around 90th percentile
- DR1 dust monitor reports no change in counts
- All other systems nominal
After confirming it was damping well over mulitple locks I added the new settings of ITMX13 to lscparams and reloaded the GRD, -30 phase with a gain of -1.0.