Ordinary chondrite-like colors in small Koronis family members

Andrew S. Rivkin, Cristina A. Thomas, David E. Trilling, Marie Therese Enga, Jennifer A. Grier

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


A survey of small (<5-10. km diameter) members of the Koronis family shows some objects with visible-wavelength broadband colors consistent with membership in the Q-class (Tholen, D.J. [1984]. Asteroid taxonomy from cluster analysis of photometry. Ph.D. Dissertation, University of Arizona, Tucson, AZ; Bus, S.J., Binzel, R.P. [2002]. Icarus 158, 146-177). This agrees with an ordinary chondritic composition for this family and suggests the timescale for changing Q-class to S-class spectra in the main belt is roughly comparable to the regolith refresh time in the 2-5. km size range.

Original languageEnglish (US)
Pages (from-to)1294-1297
Number of pages4
Issue number2
StatePublished - Feb 2011


  • Asteroids
  • Asteroids, Composition
  • Asteroids, Surfaces
  • Spectrophotometry

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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