地心轨道




Orbits around earth scale diagram.svg

地心轨道（英语：Geocentric orbit）是指绕地球旋转的物体的轨道，舉例說：月球或人造卫星的軌道。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。
1997年，美國太空總署（NASA）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[1]，而過往曾有超過16,291件物件發放到地球的大氣層，但現時已在返回地球途中燒毀[1]。



參考文獻





  1. ^ 1.01.1 Satellite Situation Report, 1997. NASA Goddard Space Flight Center. 2000-02-01 [2006-09-10]. （原始内容存档于2006-08-23） （英语）. 




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