Launch Window Analysis In A New Perspective With Examples Of Departures From Earth To Mars
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Launch Window Analysis in a New Perspective with Examples of Departures from Earth to Mars
Author | : Joseph R. Thibodeau |
Publisher | : |
Total Pages | : 86 |
Release | : 1972 |
Genre | : Aeronautics |
ISBN | : |
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Earth-departure windows are investigated for two round trip stopover missions to Mars. These are the 1981 inbound Venus swingby mission and the 1986 direct minimum-energy mission. The secular effects of planetary oblateness are used to predict the motion of the parking orbit. A procedure is developed for matching the motion of the parking orbit and the escape asymptote. Earth-departure velocity penalties, caused by orbital plane misalinement, are reduced by synchronizing the motion of the parking orbit and the escape trajectory.
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