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首页> 外文期刊>Planetary and space science >Stereo topographic models of Mercury after three MESSENGER flybys
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Stereo topographic models of Mercury after three MESSENGER flybys

机译：三个MESSENGER飞越后水星的立体地形图

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摘要

From photogrammetric analysis of stereo images of Mercury obtained during three MESSENGER flybys, we have produced three digital terrain models (DTMs) that have a grid spacing of 1 km and together cover 30% of the planet's surface. The terrain models provide a rich source of information on the morphology of Mercury's surface, including details of tectonic scarp systems as well as impact craters and basins. More than 400 craters larger than 15 km in diameter are included in the models. Additionally, the models provide important test cases for the analysis of stereo image data to be collected during MESSENGER'S orbital mission phase. Small lateral offsets and differences in trends between stereo DTMs and laser altimeter profiles may be due to remaining errors in spacecraft position, instrument pointing, or Mercury coordinate knowledge. Such errors should be resolved during the orbital mission phase, when more joint analyses of data and detailed orbit modeling will be possible.
机译：通过对三个MESSENGER飞越过程中获得的水星立体图像进行摄影测量分析，我们生成了三个数字地形模型（DTM），它们的网格间距为1 km，一起覆盖了地球表面的30％。地形模型提供了有关水星表面形态的丰富信息，包括构造陡崖系统以及撞击坑和盆地的详细信息。该模型包括超过400个直径大于15公里的陨石坑。此外，这些模型为分析在MESSENGER的轨道任务阶段要收集的立体图像数据提供了重要的测试案例。较小的横向偏移和立体声DTM与激光高度计轮廓之间的趋势差异可能是由于航天器位置，仪器指向或水银坐标知识中仍然存在误差。当有可能进行更多的数据联合分析和详细的轨道建模时，这种误差应在轨道飞行任务阶段解决。

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  • 来源
    《Planetary and space science》 |2011年第15期|p.1910-1917|共8页
  • 作者

    Frank Preusker; Jiirgen Oberst; James W. Head; Thomas R. Walters; Mark S. Robinson; Maria T. Zuber; Sean C. Solomon;

  • 作者单位

    German Aerospace Center (DLR), Rutherfordstr. 2, Institute of Planetary Research, D-12489 Berlin, Germany;

    German Aerospace Center (DLR), Rutherfordstr. 2, Institute of Planetary Research, D-12489 Berlin, Germany;

    Department of Geological Sciences, Brown University, Providence, RI02912, USA;

    Center for Earth and Planetary Studies, National Air and Space Museum, Smithsonian Institution, Washington, DC 20560, USA;

    School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA;

    Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USA;

    Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC 20015, USA.;

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  • 正文语种 eng
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  • 关键词

    mercury; MESSENGER; topography; digital terrain models;

    机译：汞;信使;地形;数字地形模型;

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