Mutual Visibility Between Two Earth Satellites

Determine times when two Earth satellites have line-of-sight visibility to each other

This submission consists of two MATLAB scripts that can be used to determine mutual visibility between two satellites in circular or elliptical Earth orbits. This script uses a combination of Brent’s one-dimensional minimization and root-finding to calculate mutual visibility conditions.

In the first script (sat2sat1), the orbits of the Earth satellites are propagated using Kozai’s method. In the second script (sat2sat2) the orbits of the satellites are propagated using an RKF78 numerical integration method which also includes the oblateness term in the orbital equations of motion.