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Traitement des Mesures Doppler en Géodésie Semi-Dynamique

  • J.-P. Chassaing
Conference paper
Part of the COSPAR-IAU-IAG/IUGG-IUTAM book series (IUTAM)

Abstract

The purpose of this paper is to show the results obtained, in the field of semi-dynamical geodesy, by processing of Doppler data collected in three mediterranean ground stations:
  • Stephanion (STD) (Greece), Colomb-Béchar (BCD) (Algeria), Haute-Provence (HPD) (France).

  • Stephanion (STD) (Greece), Colomb-Béchar (BCD) (Algeria), Haute-Provence (HPD) (France).

  • The orbit parameters, the position of the stations and one frequency parameter for each station, are simultaneously computed with a differential correction calculation using the least squares method.

  • The program of differential correction is based on a numerical integration of the equations of motion (Cowell’s method to the 8th order).

  • All the disturbances that have a known effect can be taken into account in the satellite motion theory.

  • During the periods of treatment that will be considered in this study, the values of the Earth’s potential will be those of “Standard Earth” (or NWL.5E.6); Jacchia’s model provides us with densities for the atmospheric drag.

  • Displacement of the rectangular coordinates of the stations are given with reference to the C6 system. The following results have been obtained:

  • As far as Dl.D. is concerned, the most interesting period to be treated is the period including 2 series of observations in succession (1.25 day) but good results can also be obtained with 3 orbits in succession.

Keywords

Differential Correction Atmospheric Drag Doppler Data Resonance Harmonic Transit Satellite 
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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Références

  1. Chassaing, J.-P.: Integration Numérique des Equations du Mouvement d’un Satellite Artificiel par la Methode de Cowell. Exposés sur différents problèmes de calcul d’orbites et de géodésie spatiale. Févr. 1968.Google Scholar
  2. Standard Earth, Volume I. Smithsonian Astrophysical Observatory, Spec. Rep. 200.Google Scholar
  3. Jacchia, L. G.: Static Diffusion Models of the Upper Atmosphere with Empirical Temperature Profiles. Research in Space Science, S.A.O. Spec. Rep. n° 170.Google Scholar
  4. Levallois, M.: Compte-Rendu de l’Académie des Sciences de Paris 1967.Google Scholar
  5. Veis, G.: The Determination of the Radius of the Earth and Other Geodetic Parameters as Derived from Optical Satellite Data. 14ème Ass. Gen. de l’U.G.G.L, octobre 1967, Lucerne.Google Scholar
  6. Gaposchkin, E. M., Wright, J. P.: General Relativity in Satellite Orbits. S.A.O. Spec. Rep. 283.Google Scholar
  7. Chassaing, J.-P., Lefebvre, M.: Exposés sur différents problèmes de calcul d’orbites et de géodésie spatiale: Resultats Préliminaires de la Campagne Diadème en Géodésie Semi-Dynamique.Google Scholar
  8. Anderle, R. J.: Geodetic Parameter set NWL 5 E-6 — Based on Doppler Satellite Observations. NWL Report 1978.Google Scholar

Copyright information

© Springer Verlag, Berlin/Heidelberg 1970

Authors and Affiliations

  • J.-P. Chassaing
    • 1
  1. 1.Centre National d’Etudes SpatialesBrédigny-sur-OrgeFrance

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