Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991plas.rept....7b&link_type=abstract
In NASA, Washington, Reports of Planetary Astronomy, 1991 p 7-8 (SEE N92-12792 03-89)
Astronomy and Astrophysics
Astronomy
Asteroids, Infrared Radiation, Infrared Spectra, Meteorites, Mineralogy, Planetary Evolution, Asteroid Missions, Astronomy, Galileo Spacecraft, Geochemistry, Nasa Programs, Protoplanets, Regolith
Scientific paper
The research objective was to improve the understanding of the surface mineralogy of asteroids and to link the vast existing body of meteorite geochemical data with specific astronomical objects which may be the targets of future NASA missions. The methodology used is as follow: (1) to use advanced astronomical instrumentation to obtain reflection spectra in the 0.3 to 5.2 micron wavelength range of selected asteroids; (2) to compare the asteroid data with similar data on simulated asteroid regoliths of various compositions to determine the surface mineralogy and meteoritic affinities of asteroid spectral classes and specific asteroids; (3) to integrate the mineralogical information with other astronomical data, orbital dynamics studies, and meteoritic geochemistry data to reconstruct the condensational, thermal, and collisional history of the present asteroids and their parent planetesimals; and (4) to use the information obtained to assist planning of future NASA asteroid missions such as Galileo and CRAF.
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