Other
Scientific paper
Apr 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ldef.symp..665d&link_type=abstract
In NASA. Langley Research Center, LDEF: 69 Months in Space. Second Post-Retrieval Symposium, Part 2 p 665 (SEE N93-29354 11-99)
Other
Focusing, Gravitational Lenses, Long Duration Exposure Facility, Meteoroid Concentration, Meteoroids, Spacecraft Orbits, Spacecraft Shielding, Zodiacal Light, Fluence, Galileo Spacecraft, Interplanetary Space, Mathematical Models, Populations, Ulysses Mission
Scientific paper
An extensive body of data, from meteors, zodiacal light, spacecraft-borne impact detectors (Helios, Pioneer, Galileo, Ulysses), and other sources, forms the basis of a new numerical model for the distributions of interplanetary meteoroids. For each of the five populations in this model it is possible to evaluate meteoroid concentration and flux for oriented surfaces or detectors having arbitrary position and velocity in interplanetary space. For a spacecraft in geocentric orbit the effects of gravitational focussing and shielding by the Earth have been newly derived with full attention to the directionality of the particles, both on approach (i.e., relative to a massless Earth) and at the target. This modeling approach was exercised to provide an estimate of meteoroid fluence for each of several oriented surfaces on LDEF.
Agueero Rene C.
Divine Neil
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