Compositions of near-Earth asteroids

Details Compositions of near-Earth asteroids Compositions of near-Earth asteroids

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ulpr.nasar....l&link_type=abstract

In its NASA Space Engineering Research Center for Utilization of Local Planetary Resources 8 p (SEE N91-24365 16-25)

Astronomy and Astrophysics

Astronomy

Asteroids, Astronomical Models, Clays, Extraterrestrial Resources, Minerals, Water, Absorption Spectra, Radiative Transfer, Thermal Emission

Scientific paper

The goal is to determine whether any of the near-earth asteroids contain water-bearing phyllosilicate (clay) minerals. If these minerals are present, they would provide a readily available source of water for propellant generation and use in life support systems. Telescopic detection of water on the near-earth asteroids is complicated because thermal emission from the asteroid itself masks the diagnostic absorption features for objects this close to the sun. Sophisticated thermal models are necessary to determine whether the absorption features are present. This year, development of these models was continued and more telescopic data to test the models was obtained.

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