Astrodynamics Books

Brian Mancuso (brianm@itg.net)
Wed, 29 Apr 1998 15:01:56 -0400 (EDT)

I recently became interested in satellites and astrodynamics
after learning about GPS. Could anybody recommend a good
introductory book on orbital mechanics?

I do not have a physics background; I'm a Computer Science major.
Ultimately I would like to use the knowledge in these books to write
a program to predict satellite positions as an exercise to practicing
a new language I am learning, Ada.

I've heard of something called the SPG4 algorithm. My impression
is that SPG4 is more accurate then other methods. Is this true?
Do introductory texts discuss this algorithm, or would I have to
go to other sources for that? Is that algorithm difficult to 
implement if you don't have a doctorate in astrodynamics?

Brian Mancuso