发信人: yaohua2000 (周濟是貓), 信区: Astronomy
标 题: Victoria Crater (2006-09-26)
发信站: 水木社区 (Thu Sep 28 03:04:40 2006), 站内
美国国家航空航天局的火星车机遇号第951个火星日(2006年09月26日)行驶26米(85英
尺)抵达了位于Meridiani Planum区域的维多利亚环形山边缘。行驶完成后,火星车的
导航相机拍摄了三张照片组合而成了这幅环形山内部的景色。这个环形山是过去21个
地球月以来任务的长期目标。
A half mile in the distance one can see about 20 percent of the far side of the crater
framed by the rocky cliffs in the foreground to the left and right of the image. The
rim of the crater is composed of alternating promontories, rocky points towering
approximately 70 meters (230 feet) above the crater floor, and recessed alcoves.
The bottom of the crater is covered by sand that has been shaped into ripples by
the Martian wind.
The position at the end of the sol 951 drive is about six meters from the lip of an
alcove called "Duck Bay." The rover team planned a drive for sol 952 that would
move a few more meters forward, plus more imaging of the near and far walls of the
crater.
Victoria Crater is about five times wider than "Endurance Crater," which Opportunity
spent six months examining in 2004, and about 40 times wider than "Eagle Crater,"
where Opportunity first landed.
This view is presented as a cylindrical projection with geometric seam correction.
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