Effect of Lunar Gravity Assist on interplanetary trajectories

Details Effect of Lunar Gravity Assist on interplanetary trajectories Effect of Lunar Gravity Assist on interplanetary trajectories

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ads..confr....v&link_type=abstract

AAS and AIAA, Astrodynamics Specialist Conference, Durango, CO, Aug. 19-22, 1991. 18 p.

Computer Science

Performance

Flyby Missions, Interplanetary Trajectories, Lunar Gravitation, Swingby Technique, Flight Time, Interplanetary Flight, Launch Windows, Manned Mars Missions, Mission Planning

Scientific paper

The concept of utilizing Lunar Gravity Assist to improve interplanetary missions was outlined circa 1957. Performance improvements are small, and guidance requirements are severe, but achievable. Low Energy interplanetary missions benefit the most, for example, trips to Mars and Venus. The previous analysis is extended to precursor Delta V EGA type trajectories, and comet and asteroid flybys. Single and double lunar swingbys are considered. Total mission flight times increase by 3-60 days, or more. Alternative launch windows become available. Payloads may be increased by 5-15 percent, to Mars.

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