Satellites can be used as:
1) HIGH ORBITING TARGETS, visible over large distances: geometrical method with simultaneous observations (Dynamic no relevant).
2) SENSOR IN THE GRAVITY FIELD OF THE EARTH: dynamical method
The relationship between the observation platform and the target platform leads to the following classification "receiver"-"transmitter":
1) EARTH-to-SPACE methods (the most developped): directions from camera observations, Satellite Laser Ranging (SLR), Doppler positioning (TRANSIT), geodetic use of GPS.
2) SPACE-to-EARTH methods: Radar altimetry, spaceborne laser, satellite gradiometry.
3) SPACE-to-SPACE methods: Satellite to satellite tracking.