14491Re: [GPSL] M0XER-4
- Aug 21, 2014On Thu, Aug 21, 2014 at 10:09 PM, powellite52 powellite52@...
[GPSL] <GPSLemail@example.com> wrote:
> Thanks much for the link. aprs.fi shows the M0XER-4 path wrong.Well, it doesn't show the path "wrong". If you make the history long
enough so you can see the flight path over Alaska, as well as today's
path over Iceland, you'll get a straight line between the two, and
this is only because the APRS-IS stream doesn't have any data between
the two locations. aprs.fi therefore just connects the last known
location over Alaska to the first known location over Iceland.
In fact, there is compressed historical location information stored in
the packets being copied. But only Leo has a script running which
decodes the historic data and provides that data to spacenear.us. That
site is configured to ingest the historic data and interleave it into
the live APRS data.
The regular APRS-IS stream has no provisions for historical
information processing, and in fact it has a great deal of difficulty
dealing with even short timeframe delayed packets entering the
The spacenear.us website is a dedicated and highly honed specific
purpose website, and it does it's job very well. I love the fact that
these little payloads of Leo's can regale us with stories of their
travels when they were out of range of the APRS network. We don't have
to guess where they were... they tells us the tale of their travels.
B-64 should be hitting the British Isles any time now! B-63 needs to
stop hiding in the Pacific Ocean, and B-66 needs to head south a bit
to get into range of the eastern Canadian APRS network.
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