2.2.6 spase://CDPP/Instrument/AMDA/PioneerVenusOrbiter/Ephemeris Ephemeris PVO Ephemeris 2009-05-20T21:10:14Z PVO spacecraft positions spase://SMWG/Person/Jan.Merka MetadataContact Platform Spacecraft position spase://CDPP/Observatory/AMDA/PioneerVenusOrbiter