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ephemeris data
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Subject
English
Chinese
earth.sc.
best-fit
ephemeris data
tape
最佳定位星历表数据磁带
space
ephemeris data
星历数据
space
ephemeris data
星历资料
tech.
ephemeris data
星历表数据
tech.
initial
ephemeris data
初始历书数据
space
issue of data, ephemeris
卫星轨道参数的期号
(表示轨道参数的新旧程度)
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