A Simplified Solar Radiation Pressure Model for GNSS Autonomous Orbit Prediction

We present a two-parameter Solar Radiation Pressure model for GNSS autonomous orbit prediction, in which the parameters vary with the daily and seasonal variations in the angle between the Sun and the satellite’s orbital plane. The estimator for this model’s parameters is described. We present the test results of orbit prediction with this model for GPS satellites using initial orbit states based on broadcast ephemeris data.Peer reviewe