Geometric effects on deep space orbit determination via Space-VLBI observations

We have already verified the usefulness of the VLBI observation data via Space-VLBI satellite in deep space orbit determination by simulations. Since the sensitivity of the VLBI depends on the geometry between the stations and the radio source, it is necessary to analyze the geometrical relations for actual missions. In this paper, we analyze the influences of the typical geometrical relations on the precision of the orbit determination.