Computer Science – Numerical Analysis
Scientific paper
Dec 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jansc..23..349f&link_type=abstract
Journal of the Astronautical Sciences, vol. 23, Oct.-Dec. 1975, p. 349-368.
Computer Science
Numerical Analysis
Collision Avoidance, Jupiter (Planet), Natural Satellites, Orbit Calculation, Planetary Orbits, Spacecraft Orbits, Callisto, Collision Parameters, Computer Programs, Europa, Ganymede, Gravitational Effects, Io, Numerical Analysis, Prediction Analysis Techniques
Scientific paper
An assessment of the long-term collision risk is made for an uncontrolled orbiting spacecraft that repeatedly enters the spatial region occupied by the satellites. Numerical data are obtained for 50-year orbit propagations which account approximately for the major perturbative effects of Jupiter oblateness, solar gravity and satellite gravity. A broad statistical viewpoint regarding the question of collision likelihood is adopted and is based on a total sample size of 480 initial orbits distributed among 4 orbit classes, 8 inclinations and 15 initial epochs. Numerical results compare favorably with an analytical prediction formula which shows that eccentric low-inclination orbits have high collision probability.
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