2.3.1 spase://CNES/Instrument/CDPP-AMDA/ISEE1/Ephemeris Ephemeris ISEE1 Ephemeris 2013-04-09T00:00:00Z ISEE1 spacecraft positions in various coordinate systems spase://SMWG/Person/Robert.E.McGuire MetadataContact Platform Spacecraft position spase://CNES/Observatory/CDPP-AMDA/ISEE1