2.0.0 spase://SMWG/Instrument/DoubleStar1/ASPOC ASPOC (Active Space Potential Control) 2019-05-05T12:34:56Z ASPOC (Active Space Potential Control) is to maintain the potential of the spacecraft at a low voltage. The tendency to attain high positive voltage due mainly to photoelectron emission is sought to be neutralized by shooting out positive indium ions. The spacecraft potential is continuously monitored by the PEACE instrument. spase://SMWG/Person/Klaus.M.Torkar PrincipalInvestigator NSSDC's Master Catalog https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=2003-061A&ex=1 Information about the ASPOC (Active Space Potential Control) experiment on the Double Star 1 mission. SpacecraftPotentialControl ASPOC (Active Space Potential Control) on Double Star 1 spase://SMWG/Observatory/DoubleStar1