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首页> 外文期刊>Space Science Reviews >The Multi-needle Langmuir Probe Instrument for QB50 Mission: Case Studies of Ex-Alta 1 and Hoopoe Satellites
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The Multi-needle Langmuir Probe Instrument for QB50 Mission: Case Studies of Ex-Alta 1 and Hoopoe Satellites

机译:用于QB50任务的多针朗米尔探头仪:EX-ALTA 1和Hoopoe卫星的案例研究

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摘要

The QB50 mission is a satellite constellation designed to carry out measurements at between 200-380 km altitude in the ionosphere. The multi-needle Langmuir probe (m-NLP) instrument has been mounted on board eleven QB50 satellites in order to characterize ambient plasma. The distinct feature of this instrument is its capability of measuring the plasma density at high spatial resolution without the need to know the electron temperature or the spacecraft potential. While the instrument has been deployed on many sounding rockets, the QB50 satellites offer the opportunity to demonstrate the operation of the instrument in low-earth orbit (LEO). This paper provides a brief review of the m-NLP instrument specifically designed for the QB50 mission and the case studies of the instrument's performance on board the Ex-Alta 1 and Hoopoe satellites. The system has also been functionally verified in a plasma chamber at the European Space Research and Technology Center (ESTEC). Although the QB50 mission's scientific goals have not been reached yet and some uncertainties still remain, there are some optimistic in-orbit preliminary results which could be helpful for the system improvement in future campaigns. Particularly, the electron emitter as part of the m-NLP science unit has demonstrated its capability in the plasma chamber and in orbit to mitigate spacecraft charging effects.
机译:QB50任务是卫星星座,旨在在电离层中进行200-380 km海拔地区的测量。多针朗米尔探针(M-NLP)仪器已安装在1150 QB50卫星的船上,以表征环境等离子体。该仪器的不同特点是其在高空间分辨率下测量等离子体密度的能力,而无需了解电子温度或航天器电位。虽然仪器已经部署在许多探测火箭上,但QB50卫星提供了展示在低地轨道(LEO)中仪器操作的机会。本文简要介绍了专门为QB50任务设计的M-NLP仪器,以及仪器在Ex-Alta 1和Hoopoe卫星上的表现的案例研究。该系统在欧洲空间研究和技术中心(ESTEC)的等离子室中也经过功能验证。虽然尚未达到QB50任务的科学目标,但仍然存在一些不确定性,但有一些乐观的轨道初步结果,这可能有助于对未来运动的系统改进有所帮助。特别地,作为M-NLP科学单元的一部分的电子发射器已经证明其在等离子体室中的能力和轨道以减轻航天器充电效果。

著录项

  • 来源
    《Space Science Reviews》 |2019年第2期|共19页
  • 作者单位

    Department of Physics University of Oslo 0316 Oslo Norway;

    Department of Physics University of Oslo 0316 Oslo Norway;

    Department of Physics University of Oslo 0316 Oslo Norway;

    Department of Physics University of Oslo 0316 Oslo Norway;

    Department of Physics University of Oslo 0316 Oslo Norway;

    Department of Physics University of Oslo 0316 Oslo Norway;

    Department of Physics University of Oslo 0316 Oslo Norway;

    Department of Physics University of Oslo 0316 Oslo Norway;

    Department of Physics University of Oslo 0316 Oslo Norway;

    Department of Physics University of Oslo 0316 Oslo Norway;

    Department of Physics University of Alberta Edmonton AB Canada;

    Department of Physics University of Alberta Edmonton AB Canada;

    Department of Physics University of Alberta Edmonton AB Canada;

    Herzliya Science Center Hertsliya Israel;

    Herzliya Science Center Hertsliya Israel;

    Herzliya Science Center Hertsliya Israel;

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

    QB50; Langmuir probe; Electron density; Spacecraft charging;

    机译:QB50;Langmuir探头;电子密度;航天器充电;

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