5:30 PM - 5:45 PM
[G07-2-05] Effective expansion of satellite laser ranging network for improving geodetic products and satellite orbits
A new station placed in the Southern hemisphere is found to be effective in general. It is revealed that the most effective place differs according to the geodetic parameter. The X and Y components of the geocenter and the sectoral terms of the Earth's gravity field are largely improved by a station in the polar regions. A middle latitude station best contributes to the tesseral gravity terms, and, to a lesser extent, a low latitude station best performs for the Z component of the geocenter and the zonal gravity terms. With the existing stations the quality of satellite orbits is found to be relatively poor in the Southern hemisphere, but a new high latitude station in Antarctica enhances locally the accuracies so they behave close to uniform over one orbit.