Verlet Leapfrog Astrodynamic Trajectory Integrator
VLATI is a restricted four-body problem solver of an Earth-Moon-Sun system, aimed at astrodynamics, trajectory calculation, and launch date optimization.
It uses a Velocity Verlet integrator, along with the law of universal gravitation and accurate ephemerides to find the path of a spacecraft through space given an initial state vector.
Notable features:
- Impulsive burns
- Animated and quantitative visualization program
- Real lunar and solar ephemerides
- Multi-body gravity integration
- Highly configurable
You can take a look at the documentation page for VLATI's documentation, and the INSTALL.md file for installation instructions.