Retrograde Trans-Neptunian Object: Hint of A Common Orbital Plane for Low Semi-MajorAxis, High Inclination TNOs and Centaurs. 5 Aug 2016. arXiv:1608.01808
ISBN 0-486-60061-0. JAVA applet animating the orbit of a satellite in an elliptic Kepler orbit around the Earth with any value for semi-majoraxis and eccentricity.
Bibcode:2003Sci...302.1739C. doi:10.1126/science.1091452. Detection of Semi-MajorAxis Drifts in 54 Near-Earth Asteroids: New Measurements of the Yarkovsky