The planet crossing asteroid survey: Progress in the analysis of populations and terrestrial-planet cratering rates

Details The planet crossing asteroid survey: Progress in the analysis of populations and terrestrial-planet cratering rates The planet crossing asteroid survey: Progress in the analysis of populations and terrestrial-planet cratering rates

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pggp.rept...47h&link_type=abstract

In NASA. Washington Repts. of Planetary Geol. Program p 47-50 (SEE N84-23431 13-91)

Mathematics

Logic

Asteroids, Data Acquisition, Data Bases, Planetary Craters, Populations, Projectile Cratering, Statistical Analysis, Surveys, Trajectories, Collision Parameters, Collision Rates, Intersections, Mars, Perturbation, Planetary Orbits, Resonance

Scientific paper

The Planet-Crossing Asteroid Survey (PCAS) is making steady progress toward the accumulation of the data required to make improved estimates of the populations and cratering rates which can be compared with the existing record of impact events. The PCAS is the chief source of new objects on which to base these calculations over the past decade, and is an integral part of the continuing refinement of the estimates used in planetological applications. An adjunct effort to determine albedo statistics from photometry of UCAS plates is being pursued as well, to better define the magnitude frequency distributions of asteroids. This will improve the quality of the population and collision probability calculations. The survey effort continues to discover new asteroids whose orbital characteristics may reveal the origin and evolution mechanisms reponsible for the transport of the planet-crossing asteroids to the inner solar system.

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