Sun-synchronous Orbit Design

Three MATLAB scripts that can be used to design and analyze sun-synchronous Earth orbits.

The first two MATLAB scripts calculate the mean orbital inclination required for a sun-synchronous Earth orbit based on Kozai’s J2 and J2+J4 solution. The third MATLAB script calculates the osculating orbital inclination required for a sun-synchronous orbit. The orbit is propagated by numerical integration during the solution process, and the software allows the user to specify the degree and order of the Earth gravity model to use during the simulation. Optionally, this script can also include the point mass gravity perturbation of the Sun during the solution process.