Integrated Design of Autonomous Orbit Determination and Orbit Control for GEO Satellite Based on Neural Network

Table 2

Comparison of three different trajectories.

	Real trajectory	Estimated trajectory	Nominal trajectory
Equations to be used	(1); (2)
Solving steps	Solve Eq (1), determine the motion coordinate from the result; solve Eq (2), transform the result into	Solve the equation online according to the flowchart shown in Figure 5	Substitute the initial state values on the coordinate system and solve the equation offline