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/ACE/Ephemeris/PT12M NASA NumericalData ACE GSE 12-min Position Data https://doi.org/10.48322/by5e-zs07 2025-12-04T13:28:23Z 2021-04-27T15:38:11 Only known prior ReleaseDate of the metadata 2022-08-19T12:34:56.789 Added DOI and PublicationInfo minted by JMW on 20220808, updated the RepositoryID, updated the SPDF MetadataContact Person to Robert M. Candey, metadata updated to SPASE 2.4.1, reviewed by LFB 20220819 2025-05-01T12:34:56.789 Added ObservedRegion. JMW 2025-09-30T14:27:17Z Updated PublishedBy name to match ROR Registry. Added ResourceType and NamingAuthority. 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 updated value in Version tag. ZCB 2025-12-04T13:28:23Z Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB ACE satellite positions. ACE flight operations team (FOT), and R. Candey 2022-01-01T00:00:00 Space Physics Data Facility spase://SMWG/Person/Jan.Merka MetadataContact spase://SMWG/Person/Robert.M.Candey GeneralContact spase://SMWG/Person/James.M.Weygand MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze MetadataContact spase://VHO/NumericalData/ACE/Ephemeris/PT12M spase://VSPO/NumericalData/ACE/Ephemeris/PT12M spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb 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 FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/ace/orbit/level_2_cdaweb/or_ssc/ HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/ace/orbit/level_2_cdaweb/or_ssc/ In CDF via HTTP from CDAWeb CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=AC_OR_SSC&index=sp_phys AC_OR_SSC SSCWeb https://sscweb.gsfc.nasa.gov/cgi-bin/Locator.cgi ace CDF spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb 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 CDAWeb HAPI Server https://cdaweb.gsfc.nasa.gov/hapi AC_OR_SSC Web Service to this product using the HAPI interface. CSV spase://SMWG/Instrument/ACE/Ephemeris Ephemeris 1997-08-26T00:00:00Z -P7D PT12M Heliosphere Heliosphere.Inner Heliosphere.NearEarth Epoch Time Epoch Number of milliseconds since the CDF epoch ms 1e-3>s 01-Jan-1956 00:00:00.000 01-Jan-2083 00:00:00.000 -1.0E31 Temporal GSE latitude GSE_LAT Latitude of the spacecraft position in GSE Deg Spherical GSE -90.0 90.0 -1.0E31 DirectionAngle.ElevationAngle Positional GSE longitude GSE_LON Longitude of the spacecraft position in GSE Deg Spherical GSE -180.0 180.0 -1.0E31 DirectionAngle.AzimuthAngle Positional GSE radial distance RADIUS Radial distance of the spacecraft in GSE km 1e3>m Spherical GSE 0.0 1594535.0 -1.0E31 Magnitude Positional GSE position XYZ_GSE Spacecraft position in GSE km 1e3>m Cartesian GSE 3 x Component.I 1 -1594535.0 1594535.0 -1.0E31 y Component.J 2 -1594535.0 1594535.0 -1.0E31 z Component.K 3 -1594535.0 1594535.0 -1.0E31 Positional