relative-motion

Interactive spacecraft rendezvous & proximity operations mission planner with 3D visualization. Implements Koenig-Guffanti-D'Amico (2017) state transition matrices for ROE propagation with J2 and drag perturbations.

Code for our ECCV 2018 paper "Affine Correspondences between Central Cameras for Rapid Relative Pose Estimation"

Software for Absolute and Relative Motion Orbit Theories with Zonal and Tesseral Gravitational Harmonics

Hopefully this will be a stable, helpful, open source of validated guidance, navigation, dynamics, and control code functionality, all written in Python.

A lightweight, Python-based prototype for autonomous collision avoidance in low-Earth orbit using a supervised imitation approach (oracle → neural network) with 3D visualization.

Scalar Magnitudes are invariant quantities that conserve their value and form under transformations of translation and rotation, or changes between coordinate systems (Cartesian, polar, spherical, etc.)

Relational Magnitudes are invariant vectorial quantities that conserve their value and form under transformations of translation and rotation.

Comparing relative motion models for spacecraft formation flying in eccentric orbits: Wang-Yang closed-form, EROE linear plant, and Cowell truth propagator with J2/SRP perturbations and passive safety screening.

Relative motion

TypeScript library for spacecraft relative motion propagation. Implements Yamanaka-Ankersen (elliptical orbits) and Clohessy-Wiltshire (circular orbits) state transition matrices with RIC/LVLH frame support.

🧭 Explore invariant vectorial quantities that maintain their properties under translation and rotation in this project on relational magnitudes.