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Reports until 07:52, Wednesday 18 March 2020
H1 CDS
david.barker@LIGO.ORG - posted 07:52, Wednesday 18 March 2020 - last comment - 09:55, Wednesday 18 March 2020(55671)
lock loss alert system not running

The Lock Loss Alert system medm is not updating, its last time stamp was 02:59:59 PDT this morning. I'm investigating.

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david.barker@LIGO.ORG - 08:15, Wednesday 18 March 2020 (55674)

I found the bug introduced when I added the supernova subclass of guardian alerts, I've fixed the code and restarted it. Because we were still in a guardian alert state, the code was immediately tested and it sent out the grd alerts with no problems.

david.barker@LIGO.ORG - 09:55, Wednesday 18 March 2020 (55675)

Guardian automatically put H1 back into observing early this morning. The attached 12 hour trend shows H1-range, IFO-STATE (100=observe) and the IFO_NOTIFY (20=active, 30=grd_alert). About an hour after H1 went out of observation at 3am, guardian restored observation after resolving the issue.

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