Analysis of the Required Force-Modelling for NAVSTAR/GPS Satellites

Schriftenreihe
des Instituts für Geodäsie

Heft 19/1986


 
Analysis of the Required Force-Modelling
for NAVSTAR/GPS Satellites

Herbert LANDAU / Dirk HAGMAIER
 

In: LANDAU, Herbert / EISSFELLER, Bernd / HEIN, Günter W. [1986]:
GPS Research 1985 at the Institute of Astronomical and Physical Geodesy
Schriftenreihe Universitärer Studiengang Vermessungswesen, Universität der Bundeswehr München, Heft 19, Neubiberg, S. 193-208.
 



Abstract

For precise baseline determination using carrier phase measurements to GPS satellites a high-precise orbit is necessary. To achieve a positioning accuracy of 0.1 ppm (± 1 cm for a 100 km baseline) we need an orbit accuracy of 2 m. The paper describes the necessary force-modelling for an orbit integration up to 6 days. The different gravitational forces caused by earth, moon, sun and planets together with the non-gravitational forces like solar radiation pressure and air drag are discussed in detail.
 



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