Path: Orbit/OrbitMechanics
% Point mass orbit equations in equatorial spherical coordinates. (phi is 0 in the equatorial plane and ?/2 at the pole) Since version 1. -------------------------------------------------------------------------- Form: xd = SphOrb( x, a, mu ) -------------------------------------------------------------------------- ------ Inputs ------ x (6,1) State [r;theta;phi;dr/dt;dtheta/dt;dphi/dt] a (3,1) acceleration vector mu gravitational parameter ------- Outputs ------- xd (6,1) state derivative -------------------------------------------------------------------------- References: Bate, R. R., Fundamentals of Astrodynamics. pp. 389-390. --------------------------------------------------------------------------
Back to the Orbit Module page