›› 2012, Vol. 32 ›› Issue (5): 69-75.doi: 10.3780/j.issn.1000-758X.2012.05.011

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OrbitMaintenanceTechnologyandImplementforHJ-1 A/BConstellation

LIU  Long-Fei1, WANG  Xing-Ling1, BAI  Zhao-Guang2, TAN  Tian,2 YU  Gang1   

  1. (1NationalDisasterReductionCenterofChina,Beijing100124)
    (2DFHSatelliteCoLTD,Beijing100094)
  • Received:2012-04-23 Revised:2012-05-25 Online:2012-10-25 Published:2012-10-25

Abstract: InordertomaintaintheformationofHJ-1A/Bconstellation,ensureCCDcamerascoverChina′sterritoryorrevisittheglobalin 48hours,andmeetthedemandsofChina′sdisastermonitoringandglobalterrestrialobserving,anorbitmaintenancestrategy consideringbothgroundtrackandconstellationphasewasdeveloped.Duringtheprocessofdisasterreductionandenvironment protection,revisitandcoveragecharacteristicsaremorecriticalthanstrictgroundtrackmaintenance,sotheorbitmaintenancestrategymainlyconsidertheconstellationphase.Itreducestheorbitmaintenancetimeandoperationrisk,savesthefuel,benefitslifespanofHJ-1A/B.Inthelast3moreyears,theorbitmaintenanceworkwasfullycompletedthroughonlytwice operations.

Key words: Phasedifference, Orbitalkeeping, HJ-1 A/B, Constellation