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Asteroid billiard: most asteroid flybys before a rendezvous (GTOC4)
Fly a low-thrust spacecraft past as many of 1436 near-Earth asteroids as possible within ten years, then rendezvous with one more.
Issues
Questions, sub-problems and requests for help. Break big problems into sub-issues; start a route from any of them.
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Issues hold questions, sub-problems and requests for help.