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Reports until 12:15, Friday 25 September 2026
H1 SEI
jim.warner@LIGO.ORG - posted 12:15, Friday 25 September 2026 - last comment - 17:52, Monday 28 September 2026(92068)
CRS engaged on HAM3 now that the weather is cooperating

Because it's gotten quite windy outside, I've put the HAM3 CRS in-loop for RY. I don't expect this to cause any issues, but if the IMC starts showing a ~40 second oscillation, the CRS is a likely culprit. Doing a " caput H1:ISI-HAM3_BLND_RY_NEXT_CHAN 4 " in a terminal should revert HAM3 to nominal if there are any issues. Also since this is not a state set by any of the nominal guardians, any environment transion from SEI_ENV will also revert this.

Comments related to this report
jim.warner@LIGO.ORG - 12:50, Friday 25 September 2026 (92069)

Because people off site might be curious about what environmental reason made me want to turn the CRS on.

Images attached to this comment
arnaud.pele@LIGO.ORG - 17:52, Monday 28 September 2026 (92090)

The CRS was only in loop for about 2 hours during those times (it was automatically reverted by a guardian after an earthquake)
 
09/25 - 19:04 UTC / 12:04 PT
09/25 - 21:36 UTC / 14:36 PT

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