[amsat-bb] Re: SO-50 question

Gould Smith gouldsmi at bellsouth.net
Thu Apr 28 09:43:46 PDT 2011

Hi Ron,

Use a tracking program to help explain this.  The altitude/height for SO-59 
varies between 615-704 km above the earth because of the orbit. The range 
depends upon the maximum elevation that the satellite reaches on each pass.
At the beginning of a pass for SO-50 the range is around 3000km and for each 
pass the range will decrease until it is at TCA. The range at a 90 degree 
pass over a QTH will be the same as the altitude.
The signal will have quite a bit of path loss difference due to the large 
(3000 to 700 km) distances experienced during a pass. Generally the 
beginning and ending signal will be around 3000km and the signal at TCA 
depends upon the maximum elevation for that pass.

----- Original Message ----- 
From: "Ronald Nutter" <rnutter at networkref.com>
To: "amsat" <amsat-bb at amsat.org>
Sent: Thursday, April 28, 2011 9:21 AM
Subject: [amsat-bb] SO-50 question

>I should know the answer to this one.  I am looking at the satellite data
> on SO-50.  How many miles up in orbit is it from the ground (approx).
> Trying to explain to a non-ham how far away the satellite is.
> Ron
> Ka4kyi
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