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Science 22 September 2000:
Vol. 289. no. 5487, pp. 2097 - 2101
DOI: 10.1126/science.289.5487.2097

Reports

The Shape of 433 Eros from the NEAR-Shoemaker Laser Rangefinder

Maria T. Zuber,12* David E. Smith,2 Andrew F. Cheng,3 James B. Garvin,2 Oded Aharonson,1 Timothy D. Cole,3 Peter J. Dunn,4 Yanping Guo,3 Frank G. Lemoine,2 Gregory A. Neumann,12 David D. Rowlands,2 Mark H. Torrence4

Measurements from the Near Earth Asteroid Rendezvous (NEAR)-Shoemaker Laser Rangefinder (NLR) indicate that asteroid 433 Eros is a consolidated body with a complex shape dominated by collisions. The offset between the asteroid's center of mass and center of figure indicates a small deviation from a homogeneous internal structure that is most simply explained by variations in mechanical structure. Regional-scale relief and slope distributions show evidence for control of topography by a competent substrate. Impact crater morphology is influenced by both gravity and structural control. Small-scale topography reveals ridges and grooves that may be generated by impact-related fracturing.

1 Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
2 Earth Sciences Directorate, NASA-Goddard Space Flight Center, Greenbelt, MD 20771, USA.
3 Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723-6099, USA.
4 Raytheon Information Technology and Scientific Services, Landover, MD 20771, USA.
*   To whom correspondence should be addressed. E-mail: zuber{at}mit.edu


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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Mass and local topography measurements of Itokawa by Hayabusa..
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Science 312, 1344-1347
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Laser Altimetry of Small-Scale Features on 433 Eros from NEAR-Shoemaker.
A. F. Cheng, O. Barnouin-Jha, M. T. Zuber, J. Veverka, D. E. Smith, G. A. Neumann, M. Robinson, P. Thomas, J. B. Garvin, S. Murchie, et al. (2001)
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Radio Science Results During the NEAR-Shoemaker Spacecraft Rendezvous with.
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Science 289, 2085-2088
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NEAR at Eros: Imaging and Spectral.
Veverka, Robinson, Thomas, Murchie, J. Bell III, Izenberg, Chapman, Harch, Bell, Carcich, et al. (2000)
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