poliastro - 🚀 Astrodynamics in Python

PyKEP is a scientific library providing basic tools for research in interplanetary trajectory design.

Astrodynamics with Python book, software, and videos. Spacecraft trajectory and attitude modeling and simulation

C++ library for ODE integration via Taylor's method and LLVM

OREKIT is a free low level space dynamics library written in Java. Please visit our Gitlab instance for issues and contributions: https://gitlab.orekit.org

Nyx is a high fidelity, fast, reliable and validated astrodynamics toolkit library written in Rust and available in Python

A Modern Fortran Library for Astrodynamics 🚀

Astrodynamics simulation framework

Orbit Determination with Python

The Piranha computer algebra system.

KSP Trajectory Optimization Tool

OrbitalTrajectories.jl is a modern orbital trajectory design, optimisation, and analysis library for Julia, providing methods and tools for designing spacecraft orbits and transfers via high-performance simulations of astrodynamical models.

Python library for ODE integration via Taylor's method and LLVM

Sophisticated astrodynamics and space mission simulator. Calculate n-body trajectories, perform orbital maneuvers, apply various perturbations, generate plots, and more! Minimal dependencies.

Flight profile, orbit, attitude, access.

A Fresh Approach to Astrodynamics

A set of Lambert's problem solvers

Spacecraft Simulation Environment Core codes

Julia-based dynamical simulator for asteroids and planets.

JPL ephemerides for Julia