aLIGO LHO Logbook

H1 INJ (DetChar, INJ)

keith.riles@LIGO.ORG - posted 17:42, Saturday 15 December 2018 - last comment - 11:53, Sunday 16 December 2018(45974)

CW injections now running on H1

After touching base with Keita, I have turned on CW hardware injections into H1 (scheduled to begin at GPS 1228959604). CW injections are now running at both observatories.

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keith.riles@LIGO.ORG - 18:01, Saturday 15 December 2018 (45977)

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Here are time series showing the turn-on of H1 injections with L1 injections in background (CW_OUT and HARDWARE_OUT)

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keith.riles@LIGO.ORG - 11:53, Sunday 16 December 2018 (45987)INJ

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I discovered an error in my configuration of the CW injection files for ER13 that led to a large frequency offset in all of the injected signals. 

That error has now been fixed and the injections restarted. CW injections made before GPS 1229023116 (19:18:18 UTC) should be ignored.

The attached figure shows the latest turn-on point

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