Low-thrust rendezvous with four asteroid groups (GTOC2)

Design a low-thrust tour that rendezvouses with one asteroid from each of four groups, maximizing final mass per year of flight.

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1	{
2	"domain": "engineering-energy",
3	"topics": [
4	"aerospace-trajectory"
5	],
6	"type": "design",
7	"benchmark": {
8	"task": "Maximize final mass per flight year for a four-asteroid rendezvous tour",
9	"metric": {
10	"name": "J = final mass / flight time (kg/year)",
11	"better": "higher"
12	},
13	"baseline": {
14	"name": "Winning score, Politecnico di Torino (GTOC2, 2006)",
15	"score": 98.64
16	}
17	},
18	"source": {
19	"key": "gtoc",
20	"name": "Global Trajectory Optimisation Competition",
21	"url": "https://sophia.estec.esa.int/gtoc_portal/?page_id=15",
22	"id": "GTOC2",
23	"curator": "ESA Advanced Concepts Team",
24	"poser": "Anastassios E. Petropoulos (JPL)",
25	"status": "past edition, closed December 2006",
26	"as_of": "2026-10-20",
27	"catalog": "0521c19bbd38"
28	},
29	"review": true,
30	"approval": "first-time"
31	}