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Celestial mechanics

, Volume 5, Issue 3, pp 303–310 | Cite as

On the equinoctial orbit elements

  • R. A. Broucke
  • P. J. Cefola
Article

Abstract

This paper investigates the equinoctial orbit elements for the two-body problem, showing that the associated matrices are free from singularities for zero eccentricities and zero and ninety degree inclinations. The matrix of the partial derivatives of the position and velocity vectors with respect to the orbit elements is given explicitly, together with the matrix of inverse partial derivatives, in order to facilitate construction of the matrizant (state transition matrix) corresponding to these elements. The Lagrange and Poisson bracket matrices are also given. The application of the equinoctial orbit elements to general and special perturbations is discussed.

Keywords

State Transition Partial Derivative Velocity Vector Transition Matrix Poisson Bracket 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© D. Reidel Publishing Company 1972

Authors and Affiliations

  • R. A. Broucke
    • 1
    • 2
  • P. J. Cefola
    • 3
  1. 1.University of CaliforniaLos Angeles
  2. 2.Jet Propulsion LaboratoryPasadenaUSA
  3. 3.Computer Sciences CorporationSilver SpringUSA

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