Veverka J, Thomas P C, Robinson M, Murchie S, Chapman C, Bell M, Harch A, Merline W J, Bell J F, Bussey B, Carcich B, Cheng A, Clark B, Domingue D, Dunham D, Farquhar R, Gaffey M J, Hawkins E, Izenberg N, Joseph J, Kirk R, Li H, Lucey P, Malin M, McFadden L, Miller J K, Owen W M, Peterson C, Prockter L, Warren J, Wellnitz D, Williams B G, Yeomans D K
Space Sciences Building, Cornell University, Ithaca, NY 14853, USA.
Science. 2001 Apr 20;292(5516):484-8. doi: 10.1126/science.1058651.
On 25 October 2000, the Near Earth Asteroid Rendevous (NEAR)-Shoemaker spacecraft executed a low-altitude flyover of asteroid 433 Eros, making it possible to image the surface at a resolution of about 1 meter per pixel. The images reveal an evolved surface distinguished by an abundance of ejecta blocks, a dearth of small craters, and smooth material infilling some topographic lows. The subdued appearance of craters of different diameters and the variety of blocks and different degrees of their burial suggest that ejecta from several impact events blanketed the region imaged at closest approach and led to the building up of a substantial and complex regolith consisting of fine materials and abundant meter-sized blocks.
2000年10月25日，近地小行星交会（NEAR）-舒梅克号航天器对433号小行星爱神星进行了低空飞越，从而能够以约每像素1米的分辨率对其表面进行成像。图像显示，该小行星表面已经历演化，其特征是存在大量抛射体碎块、小撞击坑较少，并且有光滑物质填充了一些地形低洼处。不同直径撞击坑的平缓外观以及碎块的多样性和不同的掩埋程度表明，几次撞击事件产生的抛射物覆盖了最接近时成像的区域，并导致形成了由细颗粒物质和大量米级碎块组成的大量且复杂的风化层。
