Orbital Mechanics for Everybody
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TEASER interactive tutorials
More resources on Orbital Mechanics
nasa.gov
NASA.gov is the official site of the U.S. space agency, offering mission news, research results, data, and STEM education resources. It features engineering articles, technical briefs, simulations, multimedia, and classroom materials for students and educators.
Celestrak
CelesTrak, run by T.S. Kelso, publishes current two-line element sets and GP orbital data for tracked satellites, plus orbit visualization tools and technical columns. Use it to obtain real orbital elements and practice propagating and interpreting actual satellite orbits.
NASA Basics of Space Flight
Free NASA chapter on orbital mechanics
Astrodynamics (MIT 16.346)
Graduate astrodynamics built on the two-body problem: Kepler's and Lambert's problems, orbit determination, powered flight and midcourse maneuvers, multi-body methods and recursive navigation algorithms, with examples from Apollo, the Space Shuttle and Mars missions. Provides 33 lecture note files and problem sets with solutions.
Orbital Mechanics for Engineering Students
Undergraduate textbook covering two-body motion, orbital elements, orbit determination from observations, Lambert's problem, orbital maneuvers and Hohmann transfers, interplanetary trajectories, and rigid-body attitude dynamics. Worked examples and MATLAB scripts prepare readers to compute and design spacecraft trajectories themselves.
aiaa.org
American Institute of Aeronautics and Astronautics (AIAA) is a professional society for aerospace engineers and students. The site provides industry news, research publications (journals and conference proceedings), standards, education resources, events, and career tools for learning and advancing in aerospace engineering.