Hi Tony,
All of the AO-40 telemetry is archived on the AMSAT website. You can
start at
http://www.amsat.org/amsat/ftp/telemetry/ao40/
For November 17 at 15:11 UTC you probably want the file
http://www.amsat.org/amsat/ftp/telemetry/ao40/2000/11/ao40_2000-11-17_00003.zip
for the corresponding telemetry from that day.
For the satellite's position, you can use the then-current TLEs from
earlier that day
which are in the file
http://www.amsat.org/amsat/ftp/telemetry/ao40/2000/11/ao40_2000-11-17_00002.zip
Almost every telemetry zip file contains a .TLE file with the NORAD TLE
elements
that correspond to that telemetry. For example, the file
ao40_2000-11-17_00002.zip
contains AO40_NORAD_SET_3.TLE which contains the then-current TLEs.
Those TLEs were only a few hours old when your recording was made. If
you
load those into a prediction program you can get the satellite's
position.
If your telemetry data from your recording is not already in the
archives, then
I'm sure we could get it added as a late submission. Let us all know
if your data
is unique! If you're not sure, send me what you copied or send me the
recording.
73 and I hope all of this helps,
Douglas KA2UPW/5
-----Original Message-----
From: Tony <[email protected]>
To: amsat-bb <[email protected]>
Sent: Fri, Sep 7, 2012 11:41 pm
Subject: [amsat-bb] Deciphering Phase 3D Telemetry
All:
I found a recording I had made of OSCAR-40's beacon on an old hard
drive. I decoded the telemetry with AO40 RCV and found that it dates
back to November 17, 2000. The status window shows that AO-40 was on
it's third orbit at 15:11 UTC.
I'd like to know the position of satellite when the recording was made
and was wondering where I can find an accurate set of old Keplerian
elements?
Thanks,
Tony -K2MO
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_______________________________________________
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Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
