Orbital Mechanics Python Packages

poliastro

poliastro - :rocket: Astrodynamics in Python

lox-space

Oxidized Astrodynamics

brahe

A practical astrodynamics for research and engineering applications

ansys-stk

The next generation Python API for STK

kshana

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

tidalpy

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

lamberthub

A set of Lambert's problem solvers

ccsds-ndm

CCSDS Navigation Data Messages Read/Write Library

nyx-space

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

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.

axinite

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

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.

orbit-formats

Lossless round-trip across orbital state-vector and ephemeris formats — TLE, CCSDS NDM, SP3, SPK, STK ephemeris, GMAT report.

maneuver-detect

Open dataset, baselines, and leaderboard for detecting satellite maneuvers from public TLE history.

hiten

A computational toolkit for the Circular Restricted Three-Body Problem

gmat-czml

Convert GMAT (and any canonical-schema) trajectories to CZML for browser-based 3D Cesium visualization.

gmat-run

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

gmat-copilot

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

hapsira

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

astrosis

TUI & CLI orbital mechanics calculator. Propagate satellites, predict passes, screen conjunctions. CUDA/C++/Python backends, auto-selected.

dsgp4

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

orbdetpy

Orbit Determination with Python

xraybinaryorbit

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

toluene

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