Orbital Mechanics Python Packages

poliastro

poliastro - :rocket: Astrodynamics in Python

kshana

Open, validated, reproducible PNT-resilience simulator spanning the full positioning, navigation & timing stack — orbit, clocks, INS, GNSS, integrity, resilience, lunar/cislunar & deep-space nav — plus quantum-vs-classical models. Runs as a Rust lib/CLI, Python, in-browser (WASM), an MCP server / Claude Code plugin, and a JetBrains plugin.

lox-space

Oxidized Astrodynamics

brahe

A practical astrodynamics for research and engineering applications

tidalpy

Software suite to perform solid-body tidal dissipation calculations for rocky and icy worlds

nyx-space

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

ansys-stk

The next generation Python API for STK

lamberthub

A set of Lambert's problem solvers

ccsds-ndm

CCSDS Navigation Data Messages Read/Write Library

gpconf

Free test kit: does your satellite software handle catalog numbers above 99,999? Built from real CelesTrak data.

axinite

A powerful open-source engine for advanced celestial mechanics, orbital dynamics, and planetary motion.

hapsira

hapsira - :rocket: Astrodynamics in Python - a poliastro fork

astrodynamics-mcp

Model Context Protocol server giving any LLM client (Claude, ChatGPT, Cursor, agents) authoritative astrodynamics tools — TLE/SGP4, Lambert, ground-station access, time/frame conversions, porkchop, B-plane.

dsgp4

dSGP4: differentiable SGP4. Supports differentiability, ML integration & embarassingly parallel computations

hiten

A computational toolkit for the Circular Restricted Three-Body Problem

orbdetpy

Orbit Determination with Python

toluene

A collection of Geospatial and Orbital Mechanic tools. Written in Python for ease and C for speed.

gmat-run

Run GMAT mission scripts from Python and get results as pandas DataFrames.

xraybinaryorbit

A Python Package for Analyzing Orbital Modulations in X-ray Binaries

gmat-script

Parse, format, lint, and edit GMAT .script mission files from Python — a tree-sitter grammar, AST, linter, and editor tooling, with no GMAT install required.

cleanode

Сustomized collection of ODE solvers

satmad

Satellite Mission Analysis and Design

orbitronomy

The Orbitronomy library is designed to simplify the process of plotting, calculating, visualizing, and animating the orbits of celestial bodies in 3D space. It employs Kepler's elliptical orbit equations and Keplerian Elements, in conjunction with PyAstronomy and Matplotlib, to perform precise orbital calculations.

gmat-copilot

Natural-language to validated GMAT .script — RAG-grounded generation, lint-checked against gmat-script, with a model-agnostic CLI.