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单词 Geocentric orbit
释义

Geocentric orbit

中文百科

地心轨道

地心轨道英语:Geocentric orbit)是指绕地球旋转的物体(如月球和人造卫星)的轨道。根据半径的不同,又分为近地轨道、中地球轨道和高椭圆轨道等。根据戈达德太空飞行中心的信息,目前在以地心为圆心的轨道上,共有2465颗人造卫星以及6216片太空垃圾。

英语百科

Geocentric orbit 地心轨道

Low (cyan) and Medium (yellow) Earth orbit regions to scale. The black dashed line is the geosynchronous orbit. The green dashed line is the 20,230 km orbit used for GPS satellites.

A geocentric orbit or Earth orbit involves any object orbiting the Earth, such as the Moon or artificial satellites. In 1997 NASA estimated there were approximately 2,465 artificial satellite payloads orbiting the Earth and 6,216 pieces of space debris as tracked by the Goddard Space Flight Center. Over 16,291 previously launched objects have decayed into the Earth's atmosphere.

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更新时间:2025/6/25 0:08:21