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- W1539840197 abstract "Periodic swing-by orbits which go back and forth between Earth and Mars indefinitely are found through use of a patched conic analysis. An approach is developed which combines two round trips to Mars and two separate series of trajectories that return directly to Earth in an arrangement that is symmetric in time. The exact terminal dates for the periodic orbits are first established by computer solution in the case where the two planets are in circular, coplanar orbits; then a solution is attempted for the eccentric, inclined case. As few as four spacecraft on periodic orbits can provide fast transfers to and from Mars during every opposition period." @default.
- W1539840197 created "2016-06-24" @default.
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- W1539840197 date "1971-10-01" @default.
- W1539840197 modified "2023-09-27" @default.
- W1539840197 title "Periodic Swing-By Orbits Connecting Earth and Mars" @default.
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- W1539840197 doi "https://doi.org/10.2514/3.59763" @default.
- W1539840197 hasPublicationYear "1971" @default.
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