Multiple spacecraft observations of interplanetary shocks Four spacecraft determination of shock normals
Multiple spacecraft observations of interplanetary shocks Four spacecraft determination of shock normals
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DOI：
10.1029/ja088ia06p04739
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发表时间：
1983-06
影响因子：
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通讯作者：
C. Russell;M. Mellott;E. Smith;J. King
中科院分区：
文献类型：
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作者：
C. Russell;M. Mellott;E. Smith;J. King
1978年和1979年的行星际激波ISEE 1，2，3 IMP 8和Prognoz 7观测提供了五个由四个航天器观测到单个激波的实例。这些观察结果用于确定这五种冲击的最佳拟合法线。除了为未来的技术提供有据可查的冲击之外。当上、下游磁场夹角大于20 °时，磁共面可以作为精确的单航天器方法。然而，没有一种技术仅仅基于在一个或多个地点的磁性测量是普遍准确的。因此，我们建议使用超定冲击正常的解决方案，只要可能，利用等离子体测量，分离矢量和时间延迟连同磁约束。
ISEE 1,2,3 IMP8, and Prognoz 7 observations of interplanetary shocks in 1978 and 1979 provide five instances where a single shock is observed by four spacecraft. These observations are used to determine best-fit normals for these five shocks. In addition to providing well-documented shocks for furture techniques. When the angle between upstream and downstream magnetic field is greater than 20, magnetic coplanarity can be an accurate single spacecraft method. However, no technique based solely on the magnetic measurements at one or multiple sites was universally accurate. Thus, we recommend using overdetermined shock normal solutions whenever possible, utilizing plasma measurements, separation vectors, and time delays together with magnetic constraints.