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Trajectory and Spacecraft Design for a Pole-Sitter Mission

机译：极地飞行任务的轨迹和航天器设计

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摘要

This paper provides a detailed mission analysis and systems design of a pole-sitter mission. It considers a spacecraft that is continuously above either the North or South Pole and, as such, can provide real-time, continuous, and hemispherical coverage of the polar regions. Two different propulsion strategies are proposed, which result in a near-term pole-sitter mission using solar-electric propulsion and a far-term pole-sitter mission, in which the electric thruster is hybridized with a solar sail. For both propulsion strategies, minimum propellent pole-sitter orbits are designed. Optimal transfers from Earth to the pole sitter are designed, assuming Soyuz and Ariane 5 launch options, and a controller is shown to be able to maintain the trajectory under unexpected conditions, such as injection errors. A detailed mass budget analysis allows for a tradeoff between mission lifetime and payload mass capacity, and candidate payloads for a range of applications are investigated. This results in a payload of about 100 kg that can operate for approximately four years with the solar-electric spacecraft, whereas the hybrid-propulsion technology enables extending the missions up to seven years. Transfers between north and south pole-sitter orbits are also considered to observe either pole when illuminated by the sun.
机译：本文提供了极地保卫任务的详细任务分析和系统设计。它考虑了连续位于北极或南极上方的航天器，因此可以提供极地区域的实时，连续和半球形覆盖。提出了两种不同的推进策略，它们导致了利用太阳能电力推进的近期极地保护任务和其中电动推进器与太阳帆混合的远期极地保护任务。对于这两种推进策略，都设计了最小的推进器保星轨道。假设Soyuz和Ariane 5发射选项，设计了从地球到极地保护区的最佳转移，并且显示了一种控制器能够在意外状况下（例如喷射误差）维持轨迹。详细的预算预算分析可以在任务寿命和有效载荷质量容量之间进行权衡，并对各种应用的候选有效载荷进行研究。这样就产生了约100千克的有效载荷，该载荷可以与太阳能电动航天器一起运行约4年，而混合动力技术可使飞行任务延长至7年。在太阳照射下，南北极星轨道之间的转移也被认为是观察到了任一极。

著录项

  • 来源
    《Journal of Spacecraft and Rockets》 |2014年第1期|311-326|共16页
  • 作者

    Matteo Ceriotti; Jeannette Heiligers; Colin R. McInnes;

  • 作者单位

    University of Strathclyde, Glasgow, Scotland G1 1XJ, United Kingdom;

    University of Strathclyde, Glasgow, Scotland G1 1XJ, United Kingdom;

    University of Strathclyde, Glasgow, Scotland G1 1XJ, United Kingdom;

  • 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
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