Real time control of tethered satellite systems to de-orbit space debris

Space debris has become a huge concern for orbital missions that makes remediation a critical and necessary action. Using Tethered Satellite System (TSS) to de-orbit debris is one active method to reduce the population of debris in Low Earth Orbits (LEO). We propose a TSS where a satellite is connected to a large space debris by an elastic tether. This system in LEO is subjected to many different disturbances such as aerodynamic drag, which necessitate a robust control method.