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

doi:10.1126/science.1133599

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

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Abstract

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 language	English (US)
Pages (from-to)	1280-1283
Number of pages	4
Journal	Science
Volume	314
Issue number	5803
DOIs	https://doi.org/10.1126/science.1133599
State	Published - Nov 24 2006
Externally published	Yes

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Scheeres, D. J., Fahnestock, E. G., Ostro, S. J., Margot, J. L., Benner, L. A. M., Broschart, S. B., Bellerose, J., Giorgini, J. D., Nolan, M. C., Magri, C., Pravec, P., Scheirich, P., Rose, R., Jurgens, R. F., De Jong, E. M., & Suzuki, S. (2006). Dynamical configuration of binary near-earth asteroid (66391) 1999 KW4. Science, 314(5803), 1280-1283. https://doi.org/10.1126/science.1133599

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title = "Dynamical configuration of binary near-earth asteroid (66391) 1999 KW4",

abstract = "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.",

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

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T1 - Dynamical configuration of binary near-earth asteroid (66391) 1999 KW4

AU - Scheeres, D. J.

AU - Fahnestock, E. G.

AU - Ostro, S. J.

AU - Margot, J. L.

AU - Benner, L. A.M.

AU - Broschart, S. B.

AU - Bellerose, J.

AU - Giorgini, J. D.

AU - Nolan, M. C.

AU - Magri, C.

AU - Pravec, P.

AU - Scheirich, P.

AU - Rose, R.

AU - Jurgens, R. F.

AU - De Jong, E. M.

AU - Suzuki, S.

PY - 2006/11/24

Y1 - 2006/11/24

N2 - 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.

AB - 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.

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

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