在古塞夫火山口由Spirit进行的定位和物理性质实验
R E Arvidson1, R C Anderson, P Bartlett
1Department of Earth and Planetary Sciences, Washington University, St. Louis, MO 63130, USA.
Science (New York, N.Y.)
|August 7, 2004
概括
美国宇航局的Spirit探测器精确地绘制了它在火星上的位置和高度. 实验显示,尘埃积累每天减少0.2%的太阳能电池产量,影响了漫游车的运行.
科学领域:
- 行星科学 行星科学
- 火星的探索火星的探索
- 地质地质地质地质地质地
背景情况:
- 了解火星表面和环境因素对于火星车运行和未来的探索至关重要.
- "精神"探测器的任务涉及火星表面的广泛穿越和数据收集.
研究的目的:
- 为了确定Spirit漫游器在其穿越过程中的确切位置和相对高度.
- 调查火星表面的物理特性及其对火星车性能的影响,特别是太阳能电池输出.
主要方法:
- 使用漫游车轮旋转,悬挂和倾斜角度进行捆绑调整的检索.
- 对重叠图像进行分析,以准确定位.
- 物理性能实验,以评估太阳能电池降解和表面材料特性.
主要成果:
- 精确确定Spirit从哥伦比亚纪念站到邦内维尔坑的位置和高度.
- 由于空气中的尘埃沉积,太阳能电池产量每天减少0.2%.
- 凝聚性土壤状沉积物,岩层和弱基岩火山岩的识别.
结论:
- 该研究成功地确定了Spirit探测器的位置和高度,提供了有价值的地形数据.
- 尘埃积累对太阳能电池效率产生了重大影响,这是漫游车寿命的关键因素.
- 遇到的多样化的地质材料和地形是火山,冲击,岩和与水有关的过程的产物.
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