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Near-circular orbits within a rotating oblate atmosphere with a diurnal variation in density and variable density scale height. (English) Zbl 0753.70018
Summary: The motion of an Earth satellite is considered within an oblate atmosphere with a diurnally varying density profile and a variable density scale height. Expressions are derived which represent the changes of parameters specifying the eccentricity and argument of perigee during one complete orbital revolution. The influence of air drag on near- circular orbits is examined and an insight is gained into the reinforcing or counterbalancing effects of atmospheric oblateness and variable density scale height.
70M20 Orbital mechanics
76U05 General theory of rotating fluids
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