david.barker@LIGO.ORG - posted 22:00, Wednesday 15 January 2025 - last comment - 09:33, Thursday 16 January 2025(82303)
Single Long Range Dolphin IPC receive errors on end station models for channels sent by the h1lsc model
At 17:48:23 Wed 15jan2025 PST all end station receivers of long-range-dolphin IPC channels originating from h1lsc saw a single IPC receive error.
The models h1susetm[x,y], h1sustms[x,y] and h1susetm[x,y]pi all receive a single channel from h1lsc and recorded a single receive error at the same time. No other end station models receive from h1lsc.
On first investigation there doesn't appear to be anything going on with h1lsc at this time to explain this.
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FRS33085 is an umbrella ticket covering any IPC errors seen during O4.
Yesterday's IPC receive error was the fourth occurence during O4, we are averaging roughly one every six months.
I have cleared the end station SUS errors with a DIAG_REST when H1 was out of observe.