...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Transactions on Plasma Science >Comparison of spacecraft charging environments at the Earth, Jupiter, and Saturn
【24h】

Comparison of spacecraft charging environments at the Earth, Jupiter, and Saturn

机译：地球，木星和土星的航天器充电环境比较

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

Studies of the Earth with the ATS-5, ATS-6, and SCATHA spacecraft led to the development of several simple tools for predicting the potentials to be expected on a spacecraft in the space environment. These tools have been used to estimate the expected levels of worst case charging at Jupiter and Saturn for the Galileo and the Cassini spacecraft missions. This paper reviews those results and puts them in the context of the design issues addressed by each mission including the spacecraft design mitigation strategies adopted to limit differential charging. The model shows that shadowed surfaces in Earth orbit can reach /spl sim/25 kV or higher in worst case environments. For Galileo, spacecraft-to-space potentials of /spl sim/900 V were predicted in shadow. Since such potentials could produce possible discharges and could effect low energy plasma measurements, the outer surface of Galileo was designed to rigid conductivity requirements. Even though the surface of Galileo is not entirely conducting, after 27 orbits no adverse effects due to surface charging aside from limited effects on low energy plasma measurements have been reported. The Saturnian environment results in spacecraft potentials to space in shadow of /spl sim/100 V or less. Although the overall surface of the Cassini spacecraft was not entirely conducting and grounded, it is shown that only in the most extreme conditions, is it expected that Cassini will experience any effects of surface charging at Saturn.
机译：使用ATS-5，ATS-6和SCATHA航天器对地球进行的研究导致开发了几种简单的工具，用于预测航天器在太空环境中的潜在潜能。这些工具已被用于估计伽利略号和卡西尼号飞船任务在木星和土星发生的最坏情况下的预期充电量。本文回顾了这些结果，并将其置于每个任务解决的设计问题的背景下，包括为限制差分充电而采用的航天器设计缓解策略。该模型显示，在最坏的情况下，地球轨道上的阴影表面可以达到/ spl sim / 25 kV或更高。对于伽利略，在阴影中预测了/ spl sim / 900 V的航天器对太空的电势。由于此类电势可能产生可能的放电，并且可能影响低能等离子体的测量，因此伽利略的外表面设计符合严格的电导率要求。即使伽利略的表面不完全导电，在27轨道运行后，除对低能等离子体测量的有限影响外，也未见因表面带电而产生的不利影响。土星环境导致航天器在/ spl sim / 100 V或更小的阴影下进入太空的潜力。尽管卡西尼号飞船的整个表面并未完全导电并接地，但事实表明，只有在最极端的条件下，才有望使卡西尼号在土星上经历任何表面电荷效应。

著录项

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