Abstract: Aiming at the problem that there are a lot of ground stations in the world, the uneven quality of the observation stations and the uneven distribution of the stations, this paper summarizes a method of selecting the stations. Based on the method, the station selection software is used to select the IGS stations, and several orbit determination experiments are designed. Results show that the use of station selection method to get 70 base station orbit, the satellite position and IGS precise ephemeris in the radial, tangential and normal rms deviation are respectively 1.11, 2.19, 1.72cm. In this paper, the reliability of the selected station software is verified, and the excessive human factors in the process of selecting stations are avoided.

Key words: IGS, selection method, software selection, reliability, orbit determination efficiency