载人飞船阻尼摄动模型和轨道预报精度

在正常飞行状态下，飞船保持三轴稳定和对地定向姿态，其时太阳翼指向不是气流方向，它的阻尼模型较为复杂。文章阐述了载人飞船大气阻尼摄动模型将本体和太阳翼分开处理的必要性；对中国局域网的USB跟踪测量，轨道确定和预报达到了制动返回所需要的较高精度。

Drag Perturbation Model and Orbit Prediction Accuracy of Manned Spacecraft

Normally, the manned spacecraft is maintained in three axis stabilized and earth acquisition (in pitch) mode. Meanwhile the solar array drag model are more complicated because the solar array does not, in general, point into the air stream. It is necessary for body and solar array panel of manned spacecraft separately to be modeled with the atmospheric drag perturbation is described. Using USB tracking data from the local area TTC network, orbit fitting and prediction is developed in higher precision for returning maneuver of manned spacecraft.