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A MATLAB Script for Predicting Orbital Events of the Planets

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A MATLAB Script for Predicting Orbital Events of the Planets


David Eagle (view profile)


Predicts interesting orbital events of our solar system planets.

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PDF document and a MATLAB script named pevents.m that can be used to compute interesting orbital events of the planets of our solar system. Using a combination of one-dimensional minimization and root-finding, the pevents MATLAB script computes the following heliocentric characteristics of planetary orbital motion.

• aphelion and perihelion of a planet
• nodal crossings of a planet
• closest approach distance between two planets
• minimum angular separation between two planets

MATLAB release MATLAB 7.14 (R2012a)
Other requirements Requires JPL binary ephemeris file which can be found in the Orbital Mechanics with MATLAB section of the Celestial and Orbital Mechanics Website located at
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