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首页> 外文会议>7th Spacecraft Charging Technology Conference 2001: a Spacecraft Charging Odyssey, Apr 23-27, 2001, Noordwijk, the Netherlands >SPACECRAFT CHARGING: OBSERVATIONS AND RELATIONSHIP TO SATELLITE ANOMALIES
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SPACECRAFT CHARGING: OBSERVATIONS AND RELATIONSHIP TO SATELLITE ANOMALIES

机译：航天器充电：与卫星异常的观察和关系

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Many studies have shown that satellite charging can cause anomalies on spacecraft. The SCATHA (Spacecraft Charging AT High Altitude) satellite was flown to determine the conditions and document the existence of satellite charging. It has provided a wealth of information on both surface and internal charging effects and statistics. It was instrumented to measure charging and to detect electrostatic discharges that occurred. Discharges were observed and could be characterized as either surface or internal charging related. More recently, observations were made of charging on a high inclination Earth orbiting (HEO) satellite. Both the HEO and SCATHA charging data show occurrence patterns that are consistent with the expected motions of substorm injected plasma electrons. The SCATHA data was taken in the near geosynchronous orbit and the HEO data was taken over a wide range of altitudes in a 63 deg. inclination orbit. The SCATHA data showed that the internal discharge rates were related to the intensities of energetic electrons (Ee > 100 keV) and that, statistically, their occurrence peaked near local noon. These results can be understood in terms of the flux levels of electrons that can penetrate shielding. The HEO energetic particle data have been combined with CRRES, GOES and GPS data to estimate some worst case levels of internal charging fluxes. The impact that satellite charging has on space systems is discussed in the context of what is known about satellite anomaly statistics.
机译：许多研究表明，卫星充电会导致航天器异常。飞行了SCATHA（高空航天器充电）卫星，以确定情况并记录卫星充电的存在。它提供了有关表面和内部充电效果以及统计信息的大量信息。它被用来测量电荷并检测发生的静电放电。观察到放电，并且可以将其表征为与表面或内部充电有关。最近，人们观察到在高倾角地球轨道（HEO）卫星上充电。 HEO和SCATHA充电数据均显示与亚暴注入的等离子体电子的预期运动一致的发生模式。 SCATHA数据是在近地球同步轨道上采集的，而HEO数据是在63度的宽广范围内采集的。倾斜轨道。 SCATHA数据显示内部放电速率与高能电子的强度（Ee> 100 keV）有关，并且从统计学上讲，它们的出现在局部正午时达到峰值。这些结果可以通过可以穿透屏蔽层的电子的通量水平来理解。 HEO高能粒子数据已与CRRES，GOES和GPS数据结合在一起，以估算内部充电通量的一些最坏情况。在已知的卫星异常统计的背景下，讨论了卫星充电对空间系统的影响。

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