• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Planetary and space science >Soviet lunar sample return missions: Landing site identification and geologic context
【24h】

Soviet lunar sample return missions: Landing site identification and geologic context

机译：苏联登月样品返回任务：着陆点识别和地质背景

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Lunar Reconnaissance Orbiter Camera (LROC) imaged the landing sites and spacecraft from the Soviet Union's Luna robotic sample return program (Luna 16, 20, and 24) allowing their locations to be determined with unprecedented precision and, more importantly, for the geologic context of the landing sites to be firmly established. Uncertainties in the position of the landing sites are now 25 m (or better), as opposed to kilometers prior to LROC observations. Because of the past uncertainty of the locations, as well as the fact that two of the Luna missions were conducted at night, the geologic context of the samples was only poorly known. LROC images reveal that the Luna 24 sample was collected on the rim of a small impact crater, providing an explanation for the compositional and maturity discrepancy that has existed for the past three decades between samples and remote sensing of the Mare Crisium surface. The location of the unsuccessful Luna 23 spacecraft is also determined and the nature of the failure confirmed.
机译：月球侦察轨道摄像机（LROC）通过苏联的月神机器人样本返回程序（第16号，第20和第24号月球）对着陆点和航天器进行了成像，从而可以前所未有的精度确定其位置，更重要的是，针对地质背景要牢固建立登陆基地。与LROC观测之前的公里数相比，着陆点位置的不确定性现在为25 m（或更佳）。由于位置的过去不确定性，以及两次Luna任务都是在夜间进行的，因此对样品的地质背景知之甚少。 LROC图像显示Luna 24样品是在一个小型撞击坑的边缘收集的，这解释了过去三十年来样品与母马Crisium表面之间存在的成分和成熟度差异。还确定了失败的Luna 23航天器的位置，并确定了故障的性质。

著录项

  • 来源
    《Planetary and space science》 |2012年第1期|p.76-88|共13页
  • 作者

    M.S. Robinson; J.B. Plescia; B.L. Jolliff; S.J. Lawrence;

  • 作者单位

    School of Earth and Space Exploration, Box 871404, Arizona State University, Tempe, AZ 85287-1404, United States;

    The Johns Hopkins University, Applied Physics Laboratory, 11100 Johns Hopkins Road, MS 200-W230, Laurel, MD 20723, United States;

    Department of Earth and Planetary Sciences, Washington University, Campus Box 1169, 1 Brookings Drive, Saint Louis, MO 63130-4899, United States;

    School of Earth and Space Exploration, Box 871404, Arizona State University, Tempe, AZ 85287-1404, United States;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    moon; luna; sample return; soviet; mare; highlands;

    机译：月亮;露娜样品退货苏联母马高地;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号