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In orbital mechanics , a frozen orbit is an orbit for an artificial satellite in which natural drifting due to the central body 's shape has been minimized by careful selection of the orbital parameters .. orbital mechanics. orbital mechanics. satellite. satellite. central body. central body. orbital parameters. orbital parameters. Typically this is an orbit where , over a long period of time , the altitude remains constant at the same point in each orbit -- changes in the inclination , position of the lowest point of the orbit , and eccentricity have been minimized by choosing initial values so that their perturbations cancel out .. inclination. Orbital inclination. position of the lowest point of the orbit. argument of perigee. eccentricity. Orbital eccentricity. perturbations. Perturbation ( astronomy ). This results in a long-term stable orbit that minimizes the use of stationkeeping propellant .. stationkeeping. stationkeeping