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- Charles J. Wetterer, Richard Linares, +4 authors Paul J. Cefola
- 2015

High fidelity orbit propagation requires detailed knowledge of the solar radiation pressure (SRP) on a space object. In turn, the SRP is dependent not only on the space object’s shape and attitude, but also on the absorption and reflectance properties of each surface on the object. These properties are typically modeled in a simplistic fashion, but are here… (More)

- Daniel R. Giza, Puneet Singla, John L. Crassidis, Richard Linares, Paul J. Cefola, Keric Hill
- 2010

This paper shows an approach to improve the statistical validity of orbital estimates and uncertainties as well as a method of associating measurements with the correct resident space objects and classifying events in near realtime. The approach involves using an adaptive Gaussian mixture solution to the Fokker-Planck-Kolmogorov equation for its… (More)

The semi-analytical theory for the motion of a space object replaces the conventional equations of motion with two formulas: (1) equations of motion for the mean equinoctial elements, and (2) expressions for the short periodic motion in the equinoctial elements. Very complete force models have been developed for the mean element equations of motion and for… (More)

- Rebecca G. Myers, John E. Draim, Paul J. Cefola, Victor Raizer
- IGARSS
- 2008

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