Dynamical configuration of binary near-earth asteroid (66391) 1999 KW4

D. J. Scheeres, E. G. Fahnestock, S. J. Ostro, J. L. Margot, L. A.M. Benner, S. B. Broschart, J. Bellerose, J. D. Giorgini, M. C. Nolan, C. Magri, P. Pravec, P. Scheirich, R. Rose, R. F. Jurgens, E. M. De Jong, S. Suzuki

Research output: Contribution to journalArticlepeer-review

113 Scopus citations


Dynamical simulations of the coupled rotational and orbital dynamics of binary near-Earth asteroid 66391 (1999 KW4) suggest that it is excited as a result of perturbations from the Sun during perihelion passages. Excitation of the mutual orbit will stimulate complex fluctuations in the orbit and rotation of both components, inducing the attitude of the smaller component to have large variation within some orbits and to hardly vary within others. The primary's proximity to its rotational stability limit suggests an origin from spin-up and disruption of a loosely bound precursor within the past million years.

Original languageEnglish (US)
Pages (from-to)1280-1283
Number of pages4
Issue number5803
StatePublished - Nov 24 2006
Externally publishedYes

ASJC Scopus subject areas

  • General


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