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The software module allows one to compute two types of
approximations to the actual orbit:
**

- The Richardson Formulation uses the equations for the approximation developed by D.L. Richardson in conjunction with work for the Jet Propulsion Laboratories
- Patrick's Formulation appends to these equations a correction to the Richardson Formulation found by Patrick Worfolk

Patrick's Formulation appears to produce a seed which converges more quickly to the actual orbit for a given radius.

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