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Reduced-dynamic technique for precise orbit determination of low earth satellites (1988)

Thornton, Catherine L. ; Yunck, Thomas P. ; Wu, Sien-Chong

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Publication Date: 2019-07-13

Description: A reduced-dynamic technique for precise orbit determination of low earth satellites is described. This technique optimally combines the conventional dynamic technique with the nondynamic technique which uses differential GPS continuous carrier phase to define the state transition. A Kalman filter formulation for this reduced-dynamic technique is given. A covariance analysis shows that when neither the dynamic nor the nondynamic technique is clearly superior, the reduced-dynamic technique appreciably improves the orbit accuracy. Guidelines for selecting a near-optimum weighting for the combination are given. Sensitivity to suboptimal weighting is assessed.

Keywords: ASTRODYNAMICS

Type: AAS PAPER 87-410 , AAS/AIAA Astrodynamics Conference; Dec 06, 1987 - Dec 09, 1987; Kalispell, MT; United States

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