[aprssig] Satellite positions: Objects or Stations?

Bob Bruninga bruninga at usna.edu
Sat Oct 15 08:00:51 CDT 2011

In your generated ISS Position from the ISS callsign, of course, you will have to add a note on he end in the comment field to the effect "de KJ4ERJ" of course.


---- Original message ----
>Date: Fri, 14 Oct 2011 21:26:44 -0400
>From: aprssig-bounces at tapr.org (on behalf of "Lynn W. Deffenbaugh (Mr)" <ldeffenb at homeside.to>)
>Subject: [aprssig] Satellite positions: Objects or Stations?  
>To: TAPR APRS Mailing List <aprssig at tapr.org>
>On 10/14/2011 9:14 PM, Bob Bruninga wrote:
>> TO avoid the problem even in UIview, it wouild be nice if you originated the
>> object on the APRS-IS as if it was a station by the satellite's name.  But
>> this station's position should only be the LIVE-NOW posit.  We cannot have
>> past, present and future positions all over the globe...
>Ok, before I change the ISS from an object to a station, and possibly
>start beaconing live positions for any queried satellites, I'd like to
>get a consensus from the aprssig.  I made the ISS satellite an object
>sourced by KJ4ERJ-15 to provide for trackability and to adhere to the
>established norms (as I saw them, at least) that stations were "real"
>and objects were "manufactured".  Yes, they may be designed to be
>displayed the same, but there was some resistance to making RFID-implied
>locations "stations" rather than "objects" as it was somehow deemed
>"spoofing" something that wasn't really APRS.
>Yes, these are satellites and not representative of potentially real
>individuals, but before I write code that is less traceable as to the
>source of the posits, I'd like to be able to point back to a consensus
>of individuals (call it "group-think"?) rather than a unilateral
>decision that may come back to haunt me two days/weeks/years after I put
>in operation.
>So, Satellite Objects?  Or Source-Calls / Stations?  Weigh in with your
>opinion on the list or off and I'll see where the consensus lies in a
>few days' time.
>Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
>PS. The positions being beaconed will be LIVE and the descriptions will
>be generic, not location specific.  If you want AOS/LOS information,
>either send a message to the satellite (see earlier thread about ISS
>Tracking & Pass Information) or look it up elsewhere.
>Oh, but the posits will have a MultiLine encoding
>(http://www.aprs-is.net/WX/MultilineProtocol.aspx) of their approximate
>coverage area so that clients that support such displays will be able to
>see it.  This will appear as random characters on non-supporting
>clients, unfortunately.
>aprssig mailing list
>aprssig at tapr.org

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