This paper presents trajectory planning algorithms for large-scale satellite clusters
reconfiguration based on sequential convex programming, and these algorithms consider …

The problem of optimum low-thrust collision avoidance between two objects in circular orbits
is investigated. The thrust vector of the maneuvered satellite, applied continuously for a …

Removing space debris is an urgent task to ensure sustainable space activity. Towards this
end, we propose herein a tethered plate satellite that can remove many items of small space …

Assuring safety of a spacecraft during autonomous rendezvous, proximity operations, and
docking is a non-trivial, multi-constraint challenge. This paper presents a challenge problem …

The objective of this paper is to provide a stochastic framework to optimally avoid collision
between a maneuverable spacecraft and a space object or debris. The satellite collision can …

The recent decades have witnessed a tremendous growth in the number of satellites and
debris in space, leading to an increasingly high risk of collision between space objects …

The space environment around the Earth is becoming increasingly populated by both active
spacecraft and space debris. To avoid potential collision events, significant improvements in …

One of the greatest challenges preventing the use of advanced controllers in aerospace is
developing methods to verify, validate, and certify them with high assurance. One emerging …

Space debris is rapidly becoming a real challenge and a serious threat for satellites and
spacecraft motion. Most of these debris moves so fast, especially in the low earth orbits …

The problem of passive safety between spacecraft is studied in this paper by means of
backward reachable sets and orbital element differences. These reachable sets characterize …