2.0.0 spase://SMWG/Instrument/DoubleStar2/HEED High-Energy Electron Detector (HEED) HEED 2019-05-05T12:34:56Z HEED (High Energy Electron Detector): The Principal Investigator is W. Zhang and J. B. Cao, CSSAR, China. No further information is available. spase://SMWG/Person/UNKNOWN GeneralContact NSSDC's Master Catalog https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=2004-029A&ex=6 Information about the High-Energy Electron Detector (HEED) experiment on the Double Star 2 mission. EnergeticParticleInstrument High-Energy Electron Detector (HEED) on Double Star 2 spase://SMWG/Observatory/DoubleStar2