Earth centric orbit propagation tool. Built from scratch in python.
Functionality includes:
- tracking sattelite location over time
- plotting sattelite ground tracks and path through 3D space
- tracking the rotation of the Earth and location of the Sun
- predicting sattelite eclipses
- converting between orbital parameters and state vectors
- converting between ECI, ECEF, and cartesian reference frames
- converting between mean, eccentric, and true anomolies
- calculating other orbit-related quantities
grid_earth.jpg source: http://www.genlogic.com/free_map_server.html