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Orbital Mechanics • Planetary launch and entry overview • Energy and velocity in orbit • Elliptical orbit parameters • Orbital elements • Coplanar orbital transfers • Noncoplanar transfers • Time in orbit • Interplanetary trajectories
© 2016 David L. Akin - All rights reserved http://spacecraft.ssl.umd.edu U N I V E R S I T Y O F Orbital Mechanics MARYLAND 1 ENAE 791 - Launch and Entry Vehicle Design Orbital Mechanics: 500 years in 40 min. • Newton’s Law of Universal Gravitation ! Gm m F = 1 2 ! r2 • Newton’s First Law meets vector algebra