2.7.1 https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions spase://NASA/NumericalData/MGS/Ephemeris/P1D NASA NumericalData MGS Positions 2025-12-04T13:29:54Z 2020-07-07T21:14:45Z Only known prior ReleaseDate of the metadata 2025-08-05T13:12:18Z Added ObservedRegion(s). Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to value in Version tag. ZCB 2025-12-04T13:29:54Z Added MetadataRightsList and RightsList(s). Added ResourceType and NamingAuthority. Updated to 2.7.1. ZCB MGS satellite positions. spase://SMWG/Person/Jan.Merka MetadataContact spase://VHO/NumericalData/MGS/Ephemeris/P1D spase://VSPO/NumericalData/MGS/Ephemeris/P1D spase://SMWG/Repository/NASA/GSFC/VHO-VMO Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products VHO-VMO Repository https://vho.nasa.gov/mission/mgs_proxy/positions/ VHO Repository housing MGS ephemeris data Text None spase://SMWG/Instrument/MGS/Ephemeris Ephemeris 1999-01-01T00:00:00Z -P1D P1D Mars.Magnetosphere.Polar Mars.Magnetosphere Mars Year Field 1 Year Temporal Doy Field 2 Day of Year Deg Temporal AU Field 3 Distance from the sun in AU Positional SE Latitude Field 4 Latitude in SE Coordinates degrees Spherical SE Positional SE Longitude Field 5 Longitude in SE Coordinates degrees Spherical SE Positional HG Latitude Field 6 Latitude in HG Coordinates degrees Spherical HG Positional HG Longitude Field 7 Longitude in HG Coordinates degrees Spherical HG Positional HGI Longitude Field 8 Longitude in HGI Coordinates degrees Spherical HGI Positional