2.4.0 spase://CNES/Instrument/CDPP-Archive/DoubleStar1/HEED High Energy Electron Detector (HEED) 2019-05-05T12:34:56Z High Energy Electron Detector (HEED) measures the flux of energetic electrons in the magnetosphere. spase://CNES/Person/CDPP-Archive/W.Zhang PrincipalInvestigator spase://CNES/Person/CDPP-Archive/Jinbin.Cao GeneralContact EnergeticParticleInstrument HEED (High Energy Electron Detector) on Double Star 1 spase://CNES/Observatory/CDPP-Archive/DoubleStar1