Secular dynamics of navigation satellites in the MEO and GSO regions  

作　　者：Hanlun Lei Emiliano Ortore Christian Circi 

机构地区：[1]School of Astronomy and Space Science,Nanjing University,Nanjing 210023,China [2]Key Laboratory of Modern Astronomy and Astrophysics in Ministry of Education,Nanjing University,Nanjing 210023,China [3]Department of Astronautical,Electrical and Energy Engineering,Sapienza University of Rome,Via Salaria 851,Rome 00138,Italy

出　　处：《Astrodynamics》2022年第4期357-374,共18页航天动力学（英文）

基　　金：This work was performed with the financial support of the National Natural Science Foundation of China(No.12073011).

摘　　要：In this study,a dynamical model is developed to describe the secular evolution of navigation satellites under the geocentric reference frame with the Laplace orbit as the fundamental plane.The disturbing function,involving the effects of Earth's oblateness and lunisolar gravitational attraction,is averaged over the orbital periods of both the satellite and the perturbers.In the regions of medium-Earth orbits and geosynchronous orbits,there are varieties of lunisolar resonances for governing the secular dynamics of navigation satellites.Among these resonances,we are interested in the ones occurring at the critical inclinations as well as the lunar node resonances.For each resonance of interest,the resonant center and width are identified analytically.Finally,dynamical maps are compared with the analytical results.

关 键 词：secular resonances Laplace plane navigation satellites dynamical maps 

分 类 号：P22[天文地球—大地测量学与测量工程]