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Planimeter model n°313 E from HAFF 

Planimeter model n°313 E from HAFF 

Source publication
Working Paper
Full-text available
Many methods have been devised to compute orbits and they fall into two main categories:geometric approaches and analytic ones. Geometric methods deliver orbital elements less certain but are useful when the length of the arc observed so far is just more or less significant of the entire trajectory to come. More and more often though, analytical me...