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首页> 外文期刊>Acta astronautica >MERLIN: Mars-Moon Exploration, Reconnaissance and Landed Investigation
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MERLIN: Mars-Moon Exploration, Reconnaissance and Landed Investigation

机译:梅林:火星-月亮探索,侦察和登陆研究

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摘要

Mars' moons Phobos and Deimos are low-albedo, D-type bodies that may preserve samples of outer solar system material that contributed organics and volatiles to the accreting terrestrial planets. A Discovery-class mission concept described in this paper, the Mars-Moon Exploration, Reconnaissance and Landed Investigation (MERLIN), will obtain in situ measurements from Deimos to test models for the moon's origin. The measurement objectives of MERLIN are to determine Deimos' elemental and miner-alogical composition, to investigate its volatile and organic content, and to characterize processes that have modified its surface. To achieve these objectives, a landed payload will provide stereo imaging and measurements of elemental and mineralogical composition and interior structure. An orbital payload will acquire global high-resolution and color imaging, putting the landing site in context by characterizing Deimos' geology. Following MOI the spacecraft flies in formation with Deimos, and uses small changes in its orbit around Mars to investigate Deimos from a range of altitudes and illuminations over 4 months. Data taken during 1- to 2-km altitude flyovers will certify a landing site. The spacecraft will be delivered to a point several kilometers above Deimos, and will navigate to landing on a fresh exposure of regolith using onboard imaging. 90 days of baseline landed operations will provide a complete set of measurements, with schedule reserve, and there is sufficient propellant to repeat the measurements at a second site.
机译:火星的火卫一和火卫二是低反照率的D型天体,可以保留太阳系外层物质的样本,这些物质为积聚的地球行星贡献了有机物和挥发物。本文所述的探索级任务概念,即火星-月亮探索,侦察和着陆调查(MERLIN),将获得Deimos的现场测量结果,以测试月球起源的模型。 MERLIN的测量目标是确定Deimos的元素和矿化学成分,研究其挥发性和有机物含量,并表征改变其表面的过程。为了实现这些目标,降落的有效载荷将提供立体成像以及元素和矿物组成以及内部结构的测量。轨道有效载荷将获得全球高分辨率和彩色图像,通过描述Deimos的地质特征将着陆点置于上下文中。在MOI之后,飞船与Deimos一起编队飞行,并利用其在火星周围的微小变化来对Deimos进行了历时4个月的一系列海拔和照明研究。在1至2公里高空飞越过程中获取的数据将证明一个着陆点。该航天器将被交付到Deimos上方几公里的位置,并将使用机载成像导航到新暴露的重石块降落。基准着陆作业的90天将提供一套完整的测量值,并保留时间表,并且有足够的推进剂在第二个地点重复进行测量。

著录项

  • 来源
    《Acta astronautica》 |2014年第1期|475-482|共8页
  • 作者单位

    The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA;

    The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA;

    The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA;

    The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA;

    Washington University in St. Louis, St. Louis, MO, USA;

    Jet Propulsion Laboratory, Pasadena, CA, USA;

    Jet Propulsion Laboratory, Pasadena, CA, USA;

    The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA;

    The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA;

    The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Deimos; Mars; Phobos; Volatiles; Organics;

    机译:Deimos;火星;火卫一;挥发物;有机物;

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