On-Orbit Collision Predictor is a comprehensive MATLAB-based tool designed for satellite conjunction analysis and space debris collision risk assessment. As Earth's orbit becomes increasingly congested, the risk of catastrophic collisions grows exponentially. This project provides a robust framework to predict future positions of space objects using TLE (Two-Line Element) data, detect "Close Approach" events within a defined spatial volume, and quantify the probability of collision using established statistical models.

Key Features

• SGP4/SDP4 Propagation: High-fidelity propagation of TLE data sets to account for atmospheric drag, Earth oblateness, and solar/lunar perturbations.
• TCA Determination: Accurate calculation of the Time of Closest Approach using iterative minimum-distance algorithms.
• Probability Analysis: Implementation of Foster’s and Chan’s algorithms for collision probability estimation.
• Covariance Transformation: Mapping of positional uncertainty ellipsoids into the encounter frame.
• Visualizations: 3D orbital trajectory plotting and relative distance-over-time graphs.

This tool is essential for ensuring satellite safety and managing space debris, providing users with the ability to propagate orbits, identify conjunctions, and assess collision risks effectively.