2.4.0 spase://CNES/Instrument/CDPP/DEMETER/Ephemeris DEMETER position and velocity 2019-05-05T12:34:56Z DEMETER spacecraft positions and velocities in GEI coordinate system spase://CNES/Person/CDPP-Archive/Michel.Parrot PrincipalInvestigator Platform DEMETER spacecraft position and velocity spase://CNES/Observatory/CDPP/DEMETER