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This article explores the concept of elliptical orbits, which are the paths of celestial bodies characterized by their oval shape. By definition, an ellipse is the locus of points where the sum of distances from two fixed points (foci) remains constant. Special cases include circles, where the foci converge. In an elliptical orbit, a satellite’s speed varies; when it exceeds 8 km/s, it moves away from Earth and gradually slows down before falling back and regaining its speed. This cyclical motion is fundamental in understanding satellite dynamics and orbit mechanics.
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Elliptical Orbits Desiree Rodriguez and DainaGodshall
Ellipse • Ellipse – an oval shaped curve that is the path of a point that moves such that the sum of its distances from 2 fixed points (foci) are constant • When foci are together, the ellipse is a circle. • A circle is a special case of an ellipse
Orbit • Satellite speed varies in an elliptical orbit • When the initial speed is more than 8 km/s, the satellite moves away from the earth and loses speed
Orbit • The satellite slows down and begins falling back towards earth • The speed that is lost is gained when it falls back • It then rejoins the path and repeats the same cycle
Describe an ellipse • An ellipse is a curve that is a closed path. It has two constant fixed points.
