Composition and size of Apollo asteroid 1984 KB

Jeffrey F. Bell, Robert Hamilton Brown, B. Ray Hawke

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Reflection spectra and thermal-emission radiometry were obtained for the Earth-crossing asteroid 1984 KB. The spectrum exhibits the spectral signatures of olivine, pyroxene, and NiFe metal; it is typical of Class S objects and suggests a surface material similar to the rare lodranite meteorites. A standard asteroid thermal model implies a radius of ∼0.7 km and an albedo of ∼0.16 (similar to Class S objects). An analysis of the same thermal data with a bare-rock thermal model gives an albedo inconsistent with the IR spectrum, suggesting that this object has a significant regolith despite its small size.

Original languageEnglish (US)
Pages (from-to)482-486
Number of pages5
JournalIcarus
Volume73
Issue number3
DOIs
StatePublished - Mar 1988

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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