Speaker
David Surovik
(University of Colorado at Boulder)
Description
In many space exploration scenarios of great interest, such as close-range study of asteroids and comets, spacecraft motion cannot be effectively approximated using Kepler's laws.
Furthermore, special dynamical structures such as periodic orbits are not inherently associated with specific science requirements and serve only as a limited framework for facilitating operations.
To broaden the mission design domain for pursuing abstract objectives in non-Keplerian systems, we instead formulate a reachability analysis tool that maps a domain of available single-impulse maneuvers onto a set of high-level outcomes.
As this process can only be conducted with numerical sampling, heuristics are used to guide iterative refinement of map features or the search for a performance metric's global maximum.
The reachability data product can be visualized to aid preliminary mission design or efficiently computed onboard the spacecraft to enable opportunistic and robust online planning.
Both modes of use will be demonstrated for planning trajectories for close-range imaging of potential lander deployment sites on the highly irregularly shaped comet 67/P.
| Applicant type | First author |
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Primary author
David Surovik
(University of Colorado at Boulder)
Co-author
Prof.
Daniel Scheeres
(University of Colorado at Boulder)
