aLIGO LHO Logbook

H1 General (DetChar)

patrick.thomas@LIGO.ORG - posted 02:03, Saturday 09 January 2016 - last comment - 02:10, Saturday 09 January 2016(24789)

Appearance of large amplitude noise in DARM

09:56:32 UTC SUS ETMY saturated. As DARM spectrum came back down, a large amplitude series of peaks has appeared up to ~ 1 kHz.

Comments related to this report

patrick.thomas@LIGO.ORG - 02:10, Saturday 09 January 2016 (24790)

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~ 10:10 UTC Noise appears to have disappeared. There were no obvious changes in any of the other FOMs. RF45 remained on reference. Control signals did not change. No changes in seismic or winds. Violin modes not rung up.