Palomar-Leiden minor planets - Proper elements, frequency distributions, belt boundaries, and family memberships

Details Palomar-Leiden minor planets - Proper elements, frequency distributions, belt boundaries, and family memberships Palomar-Leiden minor planets - Proper elements, frequency distributions, belt boundaries, and family memberships

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...72..276w&link_type=abstract

Icarus (ISSN 0019-1035), vol. 72, Nov. 1987, p. 276-303.

Computer Science

13

Asteroids, Orbital Elements, Solar Orbits, Asteroid Belts, Frequency Distribution, Impact, Mars Surface, Tables (Data), Asteroids, Asteroid Belts, Frequency, Distribution, Boundaries, Orbits, Earth Crossers, Mars Crossers, Trojan Asteroids, Hilda Asteroids, Mars, Orbital Elements, Eccentricity, Inclination, Perihelion, Distance, Jupiter, Calculations, Data, Earth-Based Observations, Telescope Methods, Catalog, Asteroid Families, Classification

Scientific paper

Tabulations are presented for the proper elements of 1227 higher accuracy orbits of faint minor planets encompassing earth and deep Mars crossers, Trojans, and Hildas. The distribution of the closest approach distance to Mars drops off sharply near zero, while that for Jupiter vanishes near 1.1 AU; it is suggested that Mars and Jupiter have caused these boundaries, so that the asteroid belt must have been larger early in the solar system's history. Some 3.5 percent of the sample, primarily shallow crossers, can impact Mars; the fortuitous alignments required for impact occur with near-simultaneity for these objects, so that they will episodically bombard Mars.

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