Analysis and Determination of the Major Payload Indexes for Gravity Exploring Satellite

According to the new generation of satellite exploring mission,this paper investigates the major pay loads of gravity exploring satellite.Based on the fundamental principle of gravity measurements,we derive the necessary satellite altitude,the accuracy requirements to be satisfied for the payloads,and the functional relationship between the highest resolution to be able to recover and the accuracies of the corresponding gravity field parameters.Finally,the authors calculate the indexes of the major measuring payloads of CHAMP,GRACE and GOCE satellites.