Density models for the upper atmosphere

Details Density models for the upper atmosphere Density models for the upper atmosphere

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979cemec..20..271d&link_type=abstract

Celestial Mechanics, vol. 20, Oct. 1979, p. 271-295.

Statistics

Computation

1

Artificial Satellites, Atmospheric Density, Atmospheric Models, Density Distribution, Orbit Calculation, Satellite Drag, Satellite Orbits, Upper Atmosphere, Astrodynamics, Cosmos Satellites, Dynamic Models, Geomagnetism, Orbital Position Estimation, Solar Activity Effects, Time Dependence

Scientific paper

Three contemporary atmospheric density models which are candidates for meeting the current orbit computation requirements are compared. The models considered are the analytic Jacchia-Roberts model, the modified Harris-Priester model, and the USSR Cosmos satellite derived density model. All of these models can be said to be quasi-dynamic representations of the atmospheric density. The time dependent variations in the model density profiles are determined by both the evaluation of explicit continuous functions of time and by the input of time varying parameters to algorithms. The computation characteristics of each of the models are compared and a modification to the modified Harris-Priester model is proposed which improves its ability to represent the diurnal variation in the atmospheric density.

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