sgp4

Astrodynamics and Spacecraft Toolkit. Features fast orbit prop, celestial precession, CCSDS parsing, RF parsing, fits image parsing, and more!

Simplified perturbations models

🛰️ Satellite TLE tools in JavaScript: get lat/lon of satellites, get look angles, plot orbit lines, extract individual TLE elements, etc

Python library to propagate satellite orbits.

SGP4 implementations in multiple languages

A Rust implementation of the SGP4 satellite propagation algorithm

Calculate orbital information of satellites in GoLang.

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

JavaScript Library for Astronomical Calculations

🛰️Orbital Object Toolkit including Multiple Propagators, Initial Orbit Determination, and Maneuver Calculations.

C# SGP4 orbit prediction Library

Real-time satellite tracker and orbit propagator

C# SGP4 Satellite Prediction Library. Load satellites from TLEs, convert between coordinate systems and reference frames, observe satellites from ground stations, and more.

🛰️Orbital Object Toolkit Core. A modern typed replacement for satellite.js including SGP4 propagation, TLE parsing, Sun and Moon calculations, and more.

A partial PHP port of the Gpredict program for real-time satellite tracking and orbit prediction.

Satellite tracking & orbit visualization in the browser using Three.js and SGP4

A Bevy Satellite Simulator

Air-&-space situational-awareness dashboard for a $10 ESP32 touchscreen (CYD / CrowPanel): satellites overhead, rocket launches, ADS-B aircraft, aviation & space weather, the solar system, and a live star map — location-aware, with an Intelligent Focus director. Runs real HTTPS feeds on a no-PSRAM board; flash it from your browser.

Integrate USSF binaries for SGP4 and SGP4-XP propagators into Orekit.

Calculate orbital information of satellites.