The objectives of this contract shall be to perform a phase A feasibility study of the e.Deorbit mission. This translates into the following goals:* An analysis of possible mission options and payloads.* A trade-off of both payload and mission options.* A minimum of two mission design concepts of an inspector, based on the trade-off results, and submitted to approval by ESA.* A system level assessment of the approved concepts, including function tree and product tree, taking into account all technical disciplines.* Preliminary technical specifications and preliminary system requirements, with requirements flow down from objectives to sub-system requirements, preferably in a system modelled format.* RDV trajectories for all proposed mission, taking into account G/S coverage, target coverage and any constraint stemming from the GNC sensors* Product trees for all proposed missions, in modelled format (e.g. OCDT, CDP, etc.)* A technology plan and technology matrix.* A system verification plan and Assembly, Integration and Testing plan.* A risk assessment for all proposed missions.* A cost estimate for all proposed missions.* Delivery of the study result to ESA for the Preliminary Requirements Review (PRR) and ensure implementation of the PRR actions.

The E.Inspector mission objectives are to:* Image an ESA owned space debris in its current status * Use obtained images for the verification and validation of the e.deorbit or space tug GNC sensorsFollowing a successful ESA internal CDF study, the mission is now proposed to go to phase A to be studied by industry.Several drivers make this mission design challenging:* A possible long and large (delta-V) transfer to the target* Compliance to Space Debris Mitigation guidelines from possibly high altitude* A close RDV while maintaining keep-out zones and ensuring passively safe trajectories* Trading storage versus G/S contact and the ability to dump all stored data during RDV* compliance to different piggyback opportunities