The invention discloses a high-precision
satellite-borne
orbit prediction method based on
numerical fitting. The method comprises the following steps: firstly, obtaining atmospheric environment parameters including the latest solar
radiation flow and a geomagnetic index,
satellite star parameters and the latest precise
orbital elements of the
satellite, combining the star and
space environment parameters, carrying out
orbit prediction by utilizing a ground high-precision numerical method so as to obtain a set of satellite instantaneous
orbital elements in a prediction arc section, then, converting into an average element to perform
numerical fitting so as to obtain a change item coefficient of each orbital element, arranging multiple sets of primary orbits to carry out segmented extrapolation according to an satellite-borne predication requirement, carrying out
orbit prediction according to the arranged initial orbital element and the change item coefficient to obtain the average element of the satellite at the prediction moment, if the prediction precision requirement is high, arranging a plurality of sets of initial values for staged prediction, converting the average element ofthe satellite at the prediction moment into the instantaneous element, so that the instantaneous position of the satellite is obtained. According to the method in the invention, the problem that the precision of satellite-borne
orbit prediction is poor in the prior art is solved.