›› 2014, Vol. 34 ›› Issue (4): 16-.doi: 10.3780/j.issn.1000.758X.2014.04.003

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AnalysisModelingandVerificationofSolarRadiationPressureforNavigationSatellite

 CHEN  Qiu-Li, WANG  Hai-Hong, CHEN  Zhong-Gui   

  1. (BeijingInstituteofSpacecraftSystemEngineering,Beijing100094)
  • Online:2014-08-25 Published:2014-08-25

Abstract: Ananalyticalsolarradiationpressure(SRP)modelingmethodfornavigationsatelliteswasproposedtoimprovetheprecisionofpreciseorbitdetermination.ComparedwiththeotherperturbingforcemodelswhichhavemuchlargermagnitudebecauseofSunactivityleadingtochangesoftheSunenergy,satellitesattitudecontrolerror,aswellastheagingofthesatellitesurfacematerial,andasthemajoruncertaintyerrorsourcesaffectingmediumearthorbitsatellites,SRPmodelisthemostdifficulttobeconstructedprecisely.Onthebasisofattitudecontrollawofnavigationsatellite,ananalyticalSRPmodelwasdeveloped,inwhichtheperturbingaccelerationwasexpressedinsatellite′sbodyfixedcoordinatesystem.SimulationresultsofGPSBlockIIRshowthattheSRPmodelworksquitewell.ThecomputationalcostisquiteclosetothatoftheT30andECOMSRPmodel,provingthattheprecisionofSRPmodelmeetstherequirementofprimarySRPstudy.

Key words: Solarradiationpressure, Navigationsatellite, Modeling, Verification