Near-Earth Asteroid 2005 CR37: Radar images and photometry of a candidate contact binary

Lance A.M. Benner, Michael C. Nolan, Steven J. Ostro, Jon D. Giorgini, Donald P. Pray, Alan W. Harris, Christopher Magri, Jean Luc Margot

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

Arecibo (2380 MHz, 13 cm) radar observations of 2005 CR37 provide detailed images of a candidate contact binary: a 1.8-km-long, extremely bifurcated object. Although the asteroid's two lobes are round, there are regions of modest topographic relief, such as an elevated, 200-m-wide facet, that suggest that the lobes are geologically more complex than either coherent fragments or homogeneous rubble piles. Since January 1999, about 9% of NEAs larger than ∼200 m imaged by radar can be described as candidate contact binaries.

Original languageEnglish (US)
Pages (from-to)474-481
Number of pages8
JournalIcarus
Volume182
Issue number2
DOIs
StatePublished - Jun 2006
Externally publishedYes

Keywords

  • Asteroids
  • asteroids
  • composition
  • Radar
  • Surfaces

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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