The new version of J77 is found to be obviously advantageous to the precision orbit determination of ERS-1, which is at the height of 800km, compared with other atmospheric models.
并将其应用于高度为800公里ERS-1 卫星的轨道计算，结果表明：修订后的J77模型比其它大气模型在测轨精度上有明显改善。
The new version of J77 is found to be obviously advantageous to the precision orbit determination of ERS-1, which is at the height of 800km, compared with other atmospheric models.
并将其应用于高度为800公里ERS-1 卫星的轨道计算，结果表明：修订后的J77模型比其它大气模型在测轨精度上有明显改善。
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