Multi-active removal of large abandoned rocket bodies by hybrid propulsion module

The feasibility study of an active removal mission of multiple large abandoned objects from Low Earth Orbit region is presented. A chaser spacecraft, powered by a hybrid rocket engine, achieves contact with two Cosmos-3M second stages and provides for their de-orbiting by means of a hybrid propulsion module. Critical mission aspects and related technologies are investigated, such as an innovative electro-adhesive system for target capture, mechanical systems for the hard docking before the disposal. De-orbiting trajectory simulations and preliminary sizing and mass budget of chaser spacecraft and hybrid rocket engines were performed.