Low Excess Speed Triple Cyclers of Venus, Earth, and Mars
2017
Ballistic cycler trajectories which repeatedly encounter Earth and Mars may be invaluable to a future transportation architecture ferrying humans to and from Mars. Such trajectories which also involve at least one flyby of Venus are computed here for the first time. The so-called triple cyclers are constructed to exhibit low excess speed on Earth-Mars transit legs, and thereby reduce the cost of hyperbolic rendezvous. Numerous solutions are identified with average transit leg excess speed below 5 kilometers per second, independent of encounter epoch. The energy characteristics are lower than previously documented cyclers not involving Venus, but the repeat periods are generally longer.
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