Aero-gravity assist for planetary missions

Details Aero-gravity assist for planetary missions Aero-gravity assist for planetary missions

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992wadc.iafcq....l&link_type=abstract

IAF, International Astronautical Congress, 43rd, Washington, Aug. 28-Sept. 5, 1992. 10 p. Research supported by NSERC and Minist

Astronomy and Astrophysics

Astronomy

Lift Drag Ratio, Pontryagin Principle, Space Missions, Swingby Technique, Trajectory Optimization, Aeroassist, Equations Of Motion, Hamiltonian Functions, Kinetic Energy

Scientific paper

This paper presents a realistic mathematical model for aero-gravity-assist. Optimal atmospheric trajectory is synthesized so as to maximize the heliocentric velocity of the spacecraft. Optimization is carried out using Pontryagin's maximum principle. The atmospheric trajectory is such that the spacecraft flies mostly at the maximum lift-to-drag ratio so as to minimize the loss of kinetic energy and increase the angle of rotation around the planet. The heating rates are also calculated.

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