Autonomous Orbital Trawler

Orbital Trawler (AOT) is a conceptual architecture for a reusable, multi‑capture debris‑removal system designed to improve the long‑term safety and sustainability of Low Earth Orbit. The system addresses the growing risk of collision cascades (Kessler Syndrome) by enabling autonomous interception, capture, and disposal of multiple debris objects within a single mission cycle. The AOT uses a four‑arm telescopic deployment system that launches guided projectiles to establish a stable capture frame. A high‑tensile Kevlar/carbon‑nanotube mesh expands between the projectiles, allowing the craft to envelop debris of varied size and geometry. Independent winches then cinch the mesh into a secure payload bag, enabling safe towing without complex docking or robotic manipulation. The craft is powered by high‑density electric propulsion supported by a compact energy‑storage system, allowing long‑duration missions with minimal fuel mass. Once debris is secured, the AOT executes one of two disposal pathways: controlled atmospheric re‑entry for burn‑up, or transfer to a graveyard orbit for high‑mass or hazardous objects. The architecture emphasises reusability, modularity, and operational scalability. Unlike single‑use harpoons or adhesive systems, the AOT is designed for multiple capture cycles per mission, offering a cost‑efficient and low‑risk approach to debris mitigation. Its net‑based capture method reduces mechanical complexity and is compatible with existing launch vehicles and servicing missions. This project outlines the mechanical design, operational sequence, disposal protocols, and competitive advantages of the AOT concept. It is intended as a foundation for technical review, refinement, and potential integration into ongoing international debris‑removal initiatives.