Prelaunch estimates of near earth satellite lifetimes Application to a proposed Brazilian satellite

Astronomy and Astrophysics – Astronomy

Scientific paper

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Brazilian Space Program, Mission Planning, Preflight Analysis, Satellite Lifetime, Satellite Perturbation, Aerodynamic Coefficients, Atmospheric Density, Atmospheric Models, Atmospheric Temperature, Exosphere, Perturbation Theory, Satellite Drag

Scientific paper

A method to make a rapid prelaunch estimate of near earth satellite lifetimes using small perturbation theory is presented. A quasi-dynamic atmospheric model is used by employing a different exospheric temperature every three months. The drag coefficient is calculated using kinetic theory. The method is validated by application to several known satellites and is then used for a proposed Brazilian satellite.

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