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Science. 2000 Sep 22;289(5487):2097-101.

The shape of 433 eros from the NEAR-shoemaker laser rangefinder

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1
Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Earth Sciences Directorate, NASA-Goddard Space Flight Center, Greenbelt, MD 20771, USA. Johns Hopkins Univer.

Abstract

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.

PMID:
11000106
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