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Reports until 07:49, Thursday 13 August 2026
LHO General
corey.gray@LIGO.ORG - posted 07:49, Thursday 13 August 2026 - last comment - 08:49, Thursday 13 August 2026(91507)
Thurs DAY Ops Transition

TITLE: 08/13 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
OUTGOING OPERATOR: None
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 5mph Gusts, 3mph 3min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.08 μm/s 
QUICK SUMMARY:

HAM7 will be a focus today with quick SQZ backscatter measurements (Rahul gave the thumbs up for SUS yesterday) and then longer SEI suite of health checks by Jim before potential close-out for sealing up HAM7 (which means lots of activities in the East Bay with Forklift/crane/other noisy activities).

IFO work with continue with Masayuki.  CRS work continues. 

On the Reservation System, I don't see "LVEA Local" laser Hazard, but yesterday we had local laser hazard for HAM7. 

Smoky day continue (although you can faintly see Rattlesnake).  This morning has shown a slow trend down in AQI to 148 (orange) from a peak of 165(red) overnight...yesterday at 10am we were at 11AQI (green).

Comments related to this report
corey.gray@LIGO.ORG - 08:26, Thursday 13 August 2026 (91510)

Checking on Laser Status

The entire LVEA is currently laser SAFE.  

At LVEA East Bay, the panels on the SOUTH side were cleared out of the way.  And on the NORTH side they were still up (with a little walkway entrance OPEN) and there was a Laser SAFE sign posted.

So, at the moment the ENTIRE LVEA is SAFE.  Just wanted to assess things this morning with all the acitivities.

camilla.compton@LIGO.ORG - 08:49, Thursday 13 August 2026 (91511)SEI

We untripped the SEI_BS Watchdog, it had a T240 trip at 7:12am PT (14:12 UITC), see attached. We untripped the watchdog with no issues. 

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