对可见的卫星轨道部分先进行粗略定位，然后加入摄动模型进行精确求解。

For the visible parts, their rough location are done advanced, and then the perturbation model into the rough results is added in.

youdao

对可见的卫星轨道部分先进行粗略定位，然后加入摄动模型进行精确求解。

For the visible parts, their rough location are done advanced, and then the perturbation model into the rough results is added in.

youdao