The orbital errors due to the potentialcoefficient model and atmospheric drag for the gradiometry satellite are obtained;
求出位系数模型和大气阻力引起的重力梯度卫星的轨道误差；
2
Finally, the influence of orbital errors and potentialcoefficient errors on the gravity gradient measurements are conversely found out.
最后，反求轨道误差和位系数误差对重力梯度测量值的影响。
3
Least Squares Collocation is used to educe the function that can directly compute gravitational potentialcoefficient by satellite gravity gradiometry data.