2.0.3 spase://SMWG/Instrument/SCATHA/SC4 SCATHA Electron and Ion Beam Emission (SC4) SC4 2019-05-05T12:34:56Z The SC4 experiment was to provide current sources for charging and discharging the satellite. spase://SMWG/Person/Herbert.A.Cohen PrincipalInvestigator spase://SMWG/Person/Jonathan.Thomas.Niehof MetadataContact SCATHA server at BU https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/SP020p0065 Spacecraft/instrument description and data. Electron Gun-Ion Gun at NSSDC https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1979-007A-07 Electron Gun-Ion Gun (SC4) on SCATHA. SpacecraftPotentialControl Spacecraft Charging At High Altitudes (SCATHA) spase://SMWG/Observatory/SCATHA