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Re: The need for telemetry data -or what happened toFO-29-



Stefan,

This system is working for any unproto packet satellite. I'am feeding all my received packets to
the aprs2 network. This way anyone connected can see the received telemetry.
See the libertad cubesat: http://www.db0anf.de/hamweb/aprsdb/showdata.php?cfrom=5k3l

It would be nice when more radio amateur would do this

73 Rob PE1ITR.


Stefan Wagener schreef:
> Thanks Bob.
>
> Point well made for the PCsats.
>
> Question: Are you proposing that all future satellites should send telemetry
> on the APRS frequency to make this system work?
>
> Stefan
>
>
>>From: "Robert Bruninga" <bruninga@usna.edu>
>>Reply-To: <bruninga@usna.edu>
>>To: "'Stefan Wagener'" <stefan_wagener@hotmail.com>, <amsat-bb@amsat.org>
>>Subject: RE: [amsat-bb] The need for telemetry data -or what happened to
>>FO-29-
>>Date: Tue, 1 May 2007 11:03:55 -0400
>>
>> > ...One key component of failure analysis is the
>> > availability of data, especially telemetry.
>> >
>> > My question is, can the satellite user community at
>> > large come up with a system that allows the routine
>> > capturing of satellite telemetry? Is there a
>> > role that AMSAT can play? What would it take?
>>
>>All of the APRS satellites (PCSAT-1, PCSAT2, ANDE and RAFT) use
>>AX.25 and beacon their telemetry around the world.  Any
>>telemetry packets, heard by any station that is on the internet,
>>feeds the packets live into the global APRS internet.  Not only
>>does this make it available to anyone at any time, but the data
>>is also archived and is available in graphical form over any
>>date period.
>>
>>For example, Simple URL's can be constructed to access and plot
>>any of the telemetry parameters.  See this WEB page:
>>
>>http://www.ew.usna.edu/~bruninga/andeTemps.html
>>
>>And look at the source code.  You will see that each plot is
>>simply a
>>URL constructed to access the correct period of data, and to
>>select the range of values and the labels.  This way, this data
>>can be incorporated into any application. Thanks to the work fof
>>K4HG, Steve Dimese and the FINDU system.
>>
>>This is all hands-off, fully automated, and routine.  Not only
>>does it work for the satellites, but it can also plot all of
>>this same data for ANY KPC-3+ TNC that is sending periodic
>>telemetry packets anywhere in the world on any APRS frequency.
>>For example, this simple URL will plot the telemetry for ANY
>>KPC-3+ TNC on the air.  This one is my local digipeater:
>>
>>http://www.findu.com/cgi-bin/tele2.cgi?call=wb4apr-1&last=240
>>
>>Just change the ULR callsign to your TNC's callsign (if it is
>>tramnsmitting its 5 channel telemetry beacons on any APRS
>>frequency) and you will see it show up here.  This is a
>>fantastic system for quick-and-dirty experiments, since the
>>global collection and plotting is already done.
>>
>>Bob, WB4APR
>>
>>
>
>
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>


73 Rob PE1ITR
http://www.pe1itr.com

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