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Old 12-10-2009, 08:09 PM
Nesti (Mark)
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Join Date: May 2009
Location: Perth, Australia
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Quote:
Originally Posted by xelasnave View Post
How are the tragectories of our space craft calculated? What math is used Is Newtonian sufficient or do they use GR?
alex
Absolutely! Newtonian gravity can calculate a spacecraft voyage across billions of kilometers and through a 100m x 100m window. Add relativistic considerations, and it can be much better...the true on-board [relative] time can also be calculated...which is important.

I believe it depends upon what the application is as to whether they use one or the other. Don't forget, GR is calculation intensive.
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