Mathematics – Probability
Scientific paper
Aug 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aiaa.confr....f&link_type=abstract
AIAA and AAS, Astrodynamics Conference, Seattle, WA, Aug. 20-22, 1984. 19 p.
Mathematics
Probability
Aerocapture, Aerodynamic Drag, Earth Orbits, Meteoroids, Ablation, Air Flow, Dynamic Pressure, Orbit Perturbation, Orbital Mechanics
Scientific paper
A probabilistic analysis, based on orbital mechanics, is performed to evaluate the chances of meteoroids entering into earth orbit and the potential population of such objects. The problem is addressed in terms of meteoroids on earth collision courses, slowed by atmosphere entry/exit, entering elliptical orbits with apogees above the atmosphere. The overall capture probability is derived by integrating the capture fraction dependence on velocity and size over the probability frequency distribution of the collision courses. Account is taken of eventual orbit decay, lunar infall and ejection after encounters with the moon. The results indicate that the probability that a natural 10-100 m diam object has achieved earth orbit is negligibly small.
Friedlander Alan L.
Soldner John K.
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