aLIGO LHO Logbook

H1 AOS (INJ)

keith.riles@LIGO.ORG - posted 12:12, Tuesday 27 August 2024 - last comment - 16:26, Tuesday 27 August 2024(79737)

CW hardware injections seem to be disabled

Now that CIT's ldas-pcdev2 machine is back up following last week's data center troubles, my CW hardware injection monitoring shows no apparent signals since the return to observing mode on Saturday. Is that by design, or did the injections restart fall through a crack? Thanks.

Comments related to this report

david.barker@LIGO.ORG - 14:39, Tuesday 27 August 2024 (79741)

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I just checked the CW hardware injection signal is running with no problems. The h1hwinj1 server had crashed on 25jul2024 and I rebooted it on 29jul2024 and verified it started ok. Attachment shows a month trend of the signal, the restart can been seen on the left.

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keith.riles@LIGO.ORG - 16:26, Tuesday 27 August 2024 (79746)

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My bad. There was indeed another disruption to the monitoring that was affected by the pcdev2 shutdown, which I hadn't noticed. Thanks for the quick follow up and sorry for the noise.