Chris L Peterson wrote:
On Tue, 24 Feb 2009 03:30:14 GMT, Golden California Girls
wrote:

It can't be calculated without calculus math skills.

I do orbital analysis all the time, and I never use calculus. You only
need that if you want to derive the equations. Just determining orbital
elements from observations requires nothing more than vector algebra.

It only requires search engine and data entry skills. Free software is out
there to do the computation, but it doesn't leave one with any understanding of
what is going on.