[amsat-bb] Re: satellite orbiatl prediction through obersvation

John Franke jmfranke at cox.net
Fri Aug 8 08:53:05 PDT 2008

In the early days I believe they relied on Flight International magazine, 
and other sources, for the inclination, etc.

John  WA4 WDL

----- Original Message ----- 
From: "Bob DeVarney W1ICW" <we1u at verizon.net>
To: <amsat-bb at amsat.org>
Sent: Friday, August 08, 2008 11:38 AM
Subject: [amsat-bb] satellite orbiatl prediction through obersvation

> I. have been reading up on the history of the Kettering group and I am
> particularly curious about one thing: how did they determine the orbit
> of the satellite strictly from observation. Can anyone help me with this?
> I can see how you could pick up the period of the satellite from
> observation, but am stumped as to how the rest of it is worked out...
> Thanks and VY 73 de W1ICW
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