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#1




orbital elements
Where can I find concise directions on how to determine orbital elements.
All I ever see on the internet is description about what they are and mean but never the way to actually do that type of calculation. 
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#2




orbital elements
U. N. McGregor wrote:
Where can I find concise directions on how to determine orbital elements. All I ever see on the internet is description about what they are and mean but never the way to actually do that type of calculation. See if you can get hold of a copy of Fundamentals of Astrodynamics by Bate, Mueller, and White. $12.89 at amazon  a good deal for an excellent book. Lot's of examples and exercises. http://www.amazon.com/FundamentalsA.../dp/0486600610 
#3




orbital elements
On Feb 24, 1:03*pm, "U. N. McGregor" wrote:
Where can I find concise directions on how to determine orbital elements. All I ever see on the internet is description about what they are and mean but never the way to actually do that type of calculation. http://www.projectpluto.com/find_orb.htm#gauss 
#4




orbital elements
"Greg Neill" wrote in message m... U. N. McGregor wrote: Where can I find concise directions on how to determine orbital elements. All I ever see on the internet is description about what they are and mean but never the way to actually do that type of calculation. See if you can get hold of a copy of Fundamentals of Astrodynamics by Bate, Mueller, and White. $12.89 at amazon  a good deal for an excellent book. Lot's of examples and exercises. http://www.amazon.com/FundamentalsA.../dp/0486600610 How difficult is it to read this and understand it? Is it written for engineers and scientists etc.? Remember , I am an amateur with limited math skills. 
#5




orbital elements
Ahh..thanks but uh uh..look at the this
http://books.google.ca/books?id=g7Yq...=4&ct=r esult Where can I find concise directions on how to determine orbital elements. All I ever see on the internet is description about what they are and mean but never the way to actually do that type of calculation. See if you can get hold of a copy of Fundamentals of Astrodynamics by Bate, Mueller, and White. $12.89 at amazon  a good deal for an excellent book. Lot's of examples and exercises. http://www.amazon.com/FundamentalsA.../dp/0486600610 
#6




orbital elements
U. N. McGregor wrote:
"Greg Neill" wrote in message m... U. N. McGregor wrote: Where can I find concise directions on how to determine orbital elements. All I ever see on the internet is description about what they are and mean but never the way to actually do that type of calculation. See if you can get hold of a copy of Fundamentals of Astrodynamics by Bate, Mueller, and White. $12.89 at amazon  a good deal for an excellent book. Lot's of examples and exercises. http://www.amazon.com/FundamentalsA.../dp/0486600610 How difficult is it to read this and understand it? Is it written for engineers and scientists etc.? Remember , I am an amateur with limited math skills. It can't be calculated without calculus math skills. 
#7




orbital elements
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. _________________________________________________ Chris L Peterson Cloudbait Observatory http://www.cloudbait.com 
#8




orbital elements
U. N. McGregor wrote:
"Greg Neill" wrote in message m... U. N. McGregor wrote: Where can I find concise directions on how to determine orbital elements. All I ever see on the internet is description about what they are and mean but never the way to actually do that type of calculation. See if you can get hold of a copy of Fundamentals of Astrodynamics by Bate, Mueller, and White. $12.89 at amazon  a good deal for an excellent book. Lot's of examples and exercises. http://www.amazon.com/FundamentalsA.../dp/0486600610 How difficult is it to read this and understand it? Is it written for engineers and scientists etc.? Remember , I am an amateur with limited math skills. The book is not over the top mathematically, but it does assume a basic knowledge of vectors and some calculus. If you want to see how to "do the calculations" and do them yourself you'll have to have some knowledge of the tools. 
#9




orbital elements
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. Here are two introductions to whet the OP's mathematical appetite. I don't know whether the OP can do linear algebra, but the amount of vector manipulation required is small and I'm sure the good people here would be willing to help. http://www3.ntu.edu.sg/home/enara/In...o%20Orbits.pdf http://www.braeunig.us/space/orbmech.htm  Dave 
#10




orbital elements
U. N. McGregor wrote:
Ahh..thanks but uh uh..look at the this http://books.google.ca/books?id=g7Yq...=4&ct=r esult Unfortunately it stops just after Chapter 5 where Gauss's method of orbit determination using the so called f and g series starts to get going. A Google search or on ADS with the "F and g Gauss orbit determination" might get something. p227 & p228 are what you want to read but it stops dead just are the tale starts to get interesting. If you want to do your own orbit determinations rather than derive the equations from scratch then take a look at Project Plutos FindOrb. I am afraid you are not going to make much headway understanding how it works without a fairly deep grounding in differential calculus. The method exploits the known conservation laws of energy and momentum and F = ma to constrain the orbit of an object observed at a series of times and locations on the sky but at an unknown distance from the sun. Where can I find concise directions on how to determine orbital elements. All I ever see on the internet is description about what they are and mean but never the way to actually do that type of calculation. See if you can get hold of a copy of Fundamentals of Astrodynamics by Bate, Mueller, and White. $12.89 at amazon  a good deal for an excellent book. Lot's of examples and exercises. http://www.amazon.com/FundamentalsA.../dp/0486600610 I can't think offhand of any book that deals with how to do this that isn't very mathematical (ie. assuming degree level calculus in the derivation of the formulae). There are one or two popular books that show how to program the resulting expressions and determine orbits (see in Project Pluto). Regards, Martin Brown 
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