Precision Analysis of LEO Satellite Orbit Prediction

doi:10.11947/j.AGCS.2016.20160045

Abstract

Abstract: The accuracy of different fitting intervals on the predicted orbit of different arc lengths was analyzed by using the dynamic fitting method and taken HY-2A satellite as an example. According to two orbit products, one was the precise orbit obtained by CNES and the other was rapid orbit computed by adopting zero-different reduced dynamic method, obtaining the precise predicted orbit. By the results, we can get that the 3DRMS is near 6dm by using 12h or 24h fitting orbit to forecast 12h arc; the 3DRMS is near 1m when forecasting 24h arc.

Key words: dynamic fitting, Collocation algorithm, fitting interval, prediction, rapid orbit determination

CLC Number:

P228

WANG Yafei, ZHONG Shiming, WANG Haitao, OU Jikun. Precision Analysis of LEO Satellite Orbit Prediction[J]. Acta Geodaetica et Cartographica Sinica, 2016, 45(9): 1035-1041.

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