Neo Radar: A browser-based orbital mechanics engine with 41k real asteroids

NEO Radar is a browser-based orbital mechanics engine that tracks 41,812 real asteroids plus 47 high-fidelity Near-Earth Objects using full N-body physics simulations integrated from JPL Horizons data. The tool provides mission-grade accuracy (412 km RMS over 50 years) by solving Kepler's equation precisely and modeling gravitational perturbations from all eight planets, significantly outperforming simplified two-body models. Users can monitor real-time close approaches and access complete physical data for any tracked asteroid.