Previous studies suggested that the Jovian magnetopause position is best characterized as a bimodal distribution indicative of a two‐state system. We applied a modified k‐means clustering analysis to observations of the Jovian and terrestrial magnetopause crossings. Clustering analysis using pre‐Juno data shows that the Jovian magnetopause is best described as a two‐state system, whereas the terrestrial magnetopause is best described by a single state, indicating that the behavior of the Jovian magnetopause is fundamentally different from that of the terrestrial magnetopause. We also analyzed magnetopause locations detected by the Juno spacecraft and conclude that their distribution is consistent with a two‐state system. The origin of the different number of Jovian and terrestrial magnetopause states may be due to the disparate source strengths supplying the two magnetospheres. The Jovian magnetosphere is supplied with about a metric ton of Iogenic heavy ions per second, whereas the terrestrial source, Earth's ionosphere, is two orders of magnitude weaker. A suggestive correlation between Io phase and magnetopause state may be consistent with this proposed link between an internal source and a two‐state magnetopause. The possible role of energetic magnetospheric events and Jovian current systems is discussed.

中文翻译：

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AK-均值聚类分析木星和陆地磁层顶顶：一种对全球磁层行为进行分类的技术

先前的研究表明，木星绝经的位置最能表征为双峰分布，表明是两态系统。我们应用了修改后的k均值聚类分析是对木卫二和陆磁更年期穿越的观察。使用Juno之前的数据进行聚类分析表明，木卫二的最佳状态是两态系统，而陆上磁化的最佳状态是单一状态，这表明木卫五的行为与陆地上的基本不同磁停。我们还分析了朱诺航天器探测到的磁更年期位置，并得出结论，其分布与两态系统一致。不同的木卫二和陆磁更年期状态的起源可能是由于供应两个磁层的不同源强度。每秒向木星的磁层提供约一吨的重离子，而地面源是地球 电离层弱两个数量级。Io相与磁更年期状态之间的暗示相关性可能与内部源与两态磁更年期之间的这种建议联系相一致。讨论了高能磁层事件和木星电流系统的可能作用。