Fourier Series Fitting of Space Object Orbit Data

Accurate orbit information plays an important role in space and national defense security, such as space object prediction, maneuver detection, collision prevention and so on. Therefore, it is highly necessary to master the characteristics of orbital elements of space objects. In this paper, the Fourier series fitting method is proposed, in which the TLE orbit data is used to analyze the orbit elements of GEO, LEO and HEO. According to the orbit elements of different types of targets, the orbit elements variation rule is approximated by using the fitting method, and the resulting variation function can be used for predictions. The experimental results show that the predictions of this method is promising.