Collision Risk Assessment and Avoidance Manoeuvres: New Tools CORAM for ESA

This paper presents the CORAM software tool developed by DEIMOS Space for the ESA/ESOC Space Debris Office. CORAM is designed to help the operator in the task of assessing the collision risk of a conjunction between two objects, and in proposing an optimal avoidance manoeuvre to reduce the collision risk to acceptable levels considering operational constraints. It is capable of reading different input formats, analysing a time interval and assessing the collision risk of each encounter in that interval. It includes algorithms for conjunctions at low and high relative speed, and the objects can be modelled as simple spheres or as a complex body composed of oriented boxes, following certain attitude laws.