Evaluation of Propulsion Systems for Satellite End-Of-Life De.Orbiting

Abstract

Active post-mission disposal of space structures will have an increased importance in the future in order to keep the Earth orbit in an acceptable condition for the safe operation of manned and unmanned missions. In a European Space Agency study jointly performed by industry and the German Aerospace Center, propulsive end-of-life de-orbiting concepts are elaborated. Two options, a direct, controlled deorbit as well as a transfer to a limited lifetime orbit are considered. The suitability of various propulsion system options is assessed based on a set of evaluation criteria. These parameters are not limited to a mere comparison of the propulsion system but cover the impact on the entire satellite system as a whole. The assessment strategy is demonstrated by the example of reference satellites.