Ah that makes sense.. Strange. I hadn't noticed any network issues here at
UW-AOS but that would certainly explain it.
Thanks for the info, Dan!
Pete
Pete Pokrandt - System Engineer IV
UW-Madison Dept of Atmospheric and Oceanic Sciences
608-262-3086 - poker@xxxxxxxxxxxx
________________________________
From: Daniel Forrest <dforrest@xxxxxxxx>
Sent: Wednesday, August 6, 2025 12:35 PM
To: Mike Zuranski <zuranski.wx@xxxxxxxxx>
Cc: Pete Pokrandt <poker@xxxxxxxxxxxx>; LDM <ldm-users@xxxxxxxxxxxxxxxx>
Subject: Re: [ldm-users] GRB data feed issues - incomplete files/gaps?
Mike and Pete,
The Unidata GRB feed is a combination of the raw Unidata feed and the
UW GRB feed. The combined feed fills in any holes due to RFI at
either site. So the path is:
Unidata -> UW -> combined data -> Unidata
UW is currently experiencing network issues sending data to the
outside world and this is causing the large dropouts.
I have notified Unidata and hopefully they can switch to their raw GRB
data until this issue is resolved.
On Wed, Aug 06, 2025 at 01:24:40PM -0400, Mike Zuranski wrote:
> OH, I thought you noticed this through Wisc's GRB as well. I'll just back
> away now, hopefully someone there can shed some more light.
>
> On Wed, Aug 6, 2025 at 1:23 PM Pete Pokrandt <poker@xxxxxxxxxxxx> wrote:
> >
> > I'm not sure this is an upstream issue, for exactly your reasoning - those
> > other sites don't seem to be affected, and they must be using GRB data, but
> > maybe not from the Unidata source?
> >
> > Doesn't the Unidata GRB data feed originate from some dishes up by the
> > mesa lab? I'm thinking it's something with this particular Unidata
> > processing, rather than an upstream data issue.
> >
> > Maybe wind? or smoke? or dish alignment? or ?? I don't know the details of
> > the processing but that's my gut feeling, that it's something with the data
> > processing between the Unidata dishes and the SATELLITE data feed origin
> > box..
> >
> > Pete
> >
> > Pete Pokrandt - System Engineer IV
> > UW-Madison Dept of Atmospheric and Oceanic Sciences
> > 608-262-3086 - poker@xxxxxxxxxxxx
> > ------------------------------
--
Daniel K. Forrest Space Science and
dforrest@xxxxxxxx Engineering Center
(608) 890 - 0558 University of Wisconsin, Madison
