Asteroid taxonomy from cluster analysis of Photometry

Details Asteroid taxonomy from cluster analysis of Photometry Asteroid taxonomy from cluster analysis of Photometry

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984phdt.........3t&link_type=abstract

Ph.D. Thesis Arizona Univ., Tucson.

Astronomy and Astrophysics

Astronomy

118

Asteroids, Astronomical Photometry, Cluster Analysis, Taxonomy, Albedo, Data Bases, Principal Components Analysis, Spectrum Analysis

Scientific paper

A principal component analysis shows that 95 percent of the information contained in the seven independent color indices for asteroids is contained in two principal components. Photometric radiometric data sets were used, along with cluster analysis techniques, to produce an improved asteroid taxonomic system. Seven major classes are now recognized and are designated A, C, D, E, M, P, and S. Three interesting minor classes are also identified: B, F, and G. Marginal evidence for an eighth major class, here called T, exists in the data, but the reality of this class awaits confirmation by further observations of potential members. Three asteroids do not fall into any of the above classes and are assigned unique designations R (349 Dembowski), Q (1862 Apollo), and V (4 Vesta).

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