Research on the Trajectory Model for ZY-3

Table 1

The fitting accuracy comparison of the different attitude and orbit modes selecting the different known times on the orbit (unit: degree).

()	10			15			20
Angle	Roll	Pitch	Yaw	Roll	Pitch	Yaw	Roll	Pitch	Yaw
1-LPM	64.610	12.772	15.100	47.859	9.103	15.297	47.362	8.569	15.122
2-PPM	63.136	12.237	16.210	47.768	8.737	15.027	47.281	8.532	14.948
3-LCPM	63.523	11.955	13.919	51.758	8.275	10.257	45.901	5.946	9.554
4-PWP4M	63.668	11.732	13.956	34.760	8.034	7.7186	15.628	5.727	4.539
5-PWPM	60.287	10.387	12.534	32.837	7.648	7.5958	22.261	5.593	5.140