The European Space Agency Tender

Decision Criteria For Collision Avoidance Manoeuvres Up To Now Focus On The Assessment Of The Probability To Collide With Another Object. While Most Collisions That Involve Two Catalogued Objects Would End The Mission Of An Active Spacecraft, A Collision Will Also Have Different Consequences On The Space Debris Environment And Its Capacity To Allow Future Missions To Operate Safely Depending On The Objects Involved In The Collision And The Approach Geometry. For This Reason, Complementary Assessment To The Collision Probability Estimation Could Rely On The Assessment Of The Predicted Severity Of The Predicted Collision. This Approach Could Become Particularly Relevant In A Scenario Where Spacecraft Operate In Congested Orbital Regions Where Additional Decision Criteria May Be Relevant To Sort Multiple Potential Conjunctions And Related Mitigation Strategies.at Esa, In The Last Few Years, Significant Effort Was Devoted To The Development Of Debris Risk Approaches. In This Context, Methods To Analyse The Consequence Of Space Debris Created In A Collision Or Explosion Have Evolved From Prototypes To Applications Over The Last Few Years. During The Period 1 Of The Space Safety Programme (2020-2022), The Activity S2p-sc-01 Has Successfully Implemented And Demonstrated A Computational Back-end (themis, Tracking The Health Of The Environment And Missions In Space) For The Evaluation Of A Space Mission's Impact On The Space Environment Based On The Ability To Accurately Forecast The Evolution Of A Debris Cloud In Any Earth Orbit.such Infrastructure Can Now Be Matured And Exploited In Several Ways, Amongst Them Assessments Of Potential Collision Consequences In An Operational Context, I.e. By Evaluating Consequences On The Surrounding Orbital Neighbourhood Of Actual Close Approach Events Predicted To Occur During The Next Few Days For An Operational Spacecraft Should The Approach Event Result In An Actual Collision. Such Case-by-case Consequence Analysis Can Then Be Fed Into The Decision Process On Avoidance Manoeuvres.the First Goal Of The Activity Is To Identify A Suitable Evaluation Scheme For The Consequences Of A Collision Based On The Debris Cloud Propagation Approach Included In The Themis Software.secondly, The Proposed Assessment Approach Shall Be Translated Into A Corresponding Software Architecture That Allows For Seamless Integration Within A Cdm [rd06] Processing Workflow And That Provides Clear Actionable Information To The User (i.e. The Operator).finally, The Developed Software Pipeline Shall Be Deployed To Test Its Functionalities And Performance In An Operational Context. This Includes A Period Of Hosting Of The Service And Collection Of User Feedback.