41 citations · 108 across the 10 of their papers we have counts for
6 papers · 1 filter
Three-dimensional Lagrangian Coherent Structures in the Elliptic-Restricted Three-body Problem
Jack Tyler, Alexander Wittig
In the preliminary design of space missions it can be useful to identify regions of dynamics that drive the system's behaviour or separate qualitatively different dynamics. The Lag…
Orbital stability of compact three-planet systems, II: Post-instability impact behaviour
Peter Bartram, Alexander Wittig, Jack J. Lissauer +2
Recent observational missions have uncovered a significant number of compact multi-exoplanet systems. The tight orbital spacing of these systems has led to much effort being applie…
Terrestrial Exoplanet Simulator (TES): an error optimal planetary systems integrator that permits close encounters
Peter Bartram, Alexander Wittig
We present TES, a new n-body integration code for the accurate and rapid propagation of planetary systems in the presence of close encounters. TES builds upon the classic Encke met…
On Asteroid Retrieval Missions Enabled by Invariant Manifold Dynamics
Jack Tyler, Alexander Wittig
In recent years, the retrieval of entire asteroids has received significant attention, with many approaches leveraging the invariant manifolds of the Circular-Restricted Three-body…
On the predictability of Galileo disposal orbits
David J. Gondelach, Roberto Armellin, Alexander Wittig
The end-of-life disposal of Galileo satellites is needed to avoid collisions with operational spacecraft and to prevent the generation of space debris. Either disposal in stable gr…
A differential algebra based importance sampling method for impact probability computation on Earth resonant returns of Near Earth Objects
Matteo Losacco, Pierluigi Di Lizia, Roberto Armellin +1
A differential algebra based importance sampling method for uncertainty propagation and impact probability computation on the first resonant returns of Near Earth Objects is presen…