JSPM

SGP4/SDP4 calculation library

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

space data standards framework based on ccsds standards and google flatbuffers

High-performance SGP4 GPU/WebGPU/WebGL WASM wrapper.

WorldWideView plugin for real-time satellite tracking using CelesTrak TLE data and SGP4 propagation. Tracks ISS, Starlink, GPS, weather, military, and reconnaissance satellites on the 3D globe.

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

A NodeJS port of python-sgp4 used for predicting and calculating orbital information of satellites from TLE data.

OrbPro is a CesiumJS distribution, a JavaScript library for creating 3D globes, 2D maps, and 4D physics-based space simulations in a web browser without a plugin.

Toolkit for solar system ephemerides and satellite propagation via SGP4

javascript port of predict open-source satellite tracking library

javascript port of predict open-source satellite tracking library

Modular set of functions for SGP4 and SDP4 propagation of TLEs.