2.4.1 spase://CNES/Instrument/CDPP-AMDA/HelioSwarm/Ephemeris Ephemeris HelioSwarm Ephemeris 2023-02-21T10:10:14Z HelioSwarm spacecraft positions spase://SMWG/Person/Harlan.E.Spence PrincipalInvestigator spase://CNES/Person/CDPP-AMDA/K.Klein PrincipalInvestigator Platform Spacecraft position spase://CNES/Observatory/CDPP-AMDA/HelioSwarm