In recent years, space activity has increased at an unique rate, leading to a rapidly growing number of Earth orbiting satellites. This expansion has significantly increased orbital congestion and the related risk of collisions and space debris generation. As a result, maintaining space safety and space access has become a critical challenge for current and future missions. This crowded orbital environment calls for advanced positioning and prediction capabilities. Reliable knowledge of satellite position and its future evolution is essential not only for reducing space debris formation, but also for autonomous navigation, formation flying, collision avoidance, and overall mission success. Within this context, the advent of CubeSats has increased access to space by offering a cost-effective, fast, and reliable alternative to conventional large satellites.