Sources of Variation
The ground track of a satellite can take a number of different forms, depending on the values of the orbital elements, parameters which define the size, shape, and orientation of the satellite's orbit. This article discusses closed orbits, or orbits with eccentricity less than 1, thus excluding parabolic and hyperbolic trajectories.
Read more about this topic: Ground Track
Famous quotes containing the words sources of and/or sources:
“No drug, not even alcohol, causes the fundamental ills of society. If we’re looking for the sources of our troubles, we shouldn’t test people for drugs, we should test them for stupidity, ignorance, greed and love of power.”
—P.J. (Patrick Jake)
“The sources of poetry are in the spirit seeking completeness.”
—Muriel Rukeyser (1913–1980)