隼鸟号拍摄的小行星25143糸川的详细图像。

Detailed images of asteroid 25143 Itokawa from Hayabusa.

作者信息

Saito J, Miyamoto H, Nakamura R, Ishiguro M, Michikami T, Nakamura A M, Demura H, Sasaki S, Hirata N, Honda C, Yamamoto A, Yokota Y, Fuse T, Yoshida F, Tholen D J, Gaskell R W, Hashimoto T, Kubota T, Higuchi Y, Nakamura T, Smith P, Hiraoka K, Honda T, Kobayashi S, Furuya M, Matsumoto N, Nemoto E, Yukishita A, Kitazato K, Dermawan B, Sogame A, Terazono J, Shinohara C, Akiyama H

机构信息

Hayabusa Project Team, Institute of Space and Astronautical Sciences (ISAS), Japan Aerospace Exploration Agency (JAXA), 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan.

出版信息

Science. 2006 Jun 2;312(5778):1341-4. doi: 10.1126/science.1125722.

DOI:10.1126/science.1125722

PMID:16741110

Abstract

Rendezvous of the Japanese spacecraft Hayabusa with the near-Earth asteroid 25143 Itokawa took place during the interval September through November 2005. The onboard camera imaged the solid surface of this tiny asteroid (535 meters by 294 meters by 209 meters) with a spatial resolution of 70 centimeters per pixel, revealing diverse surface morphologies. Unlike previously explored asteroids, the surface of Itokawa reveals both rough and smooth terrains. Craters generally show unclear morphologies. Numerous boulders on Itokawa's surface suggest a rubble-pile structure.

摘要

日本宇宙飞船“隼鸟号”与近地小行星25143“糸川”的交会发生在2005年9月至11月期间。机载相机以每像素70厘米的空间分辨率对这颗微小的小行星（535米×294米×209米）的固体表面进行了成像，揭示了多样的表面形态。与之前探测过的小行星不同，糸川的表面既有崎岖地形，也有平坦地形。陨石坑的形态通常不清晰。糸川表面有大量巨石，这表明它具有碎石堆结构。