2.3.2 spase://NASA/NumericalData/IMP8/Ephemeris/PT12M IMP 8 Spacecraft Positions 2021-04-27T15:38:11Z IMP-8 spacecraft positions in various coordinate systems spase://SMWG/Person/Adam.Szabo Scientist spase://VMO/NumericalData/IMP8/Ephemeris/PT12M spase://VSPO/NumericalData/IMP8/Ephemeris/PT12M spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb Online Open FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/imp/imp8/orbit/or_ssc/ NASA/GSFC CDAWeb ftp access to the data. HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/imp/imp8/orbit/or_ssc/ In CDF via HTTP from SPDF CDF None spase://SMWG/Repository/NASA/GSFC/SPDF Online Open CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=I8_OR_SSC&index=sp_phys I8_OR_SSC I8_OR_SSC with subset, plot and list via CDAWeb SSCWeb https://sscweb.gsfc.nasa.gov/cgi-bin/Locator.cgi imp8 Text Please acknowledge the CDAWeb team at GSFC/SPDF. spase://SMWG/Repository/NASA/GSFC/SPDF Online Open CDAWeb HAPI Server https://cdaweb.gsfc.nasa.gov/hapi I8_OR_SSC Web Service to this product using the HAPI interface. CSV Please acknowledge the CDAWeb team at GSFC/SPDF. spase://SMWG/Instrument/IMP8/Ephemeris Ephemeris 1973-10-30T00:00:00Z P0D PT12M Epoch Epoch Number of milliseconds since the epoch 01-Jan-1956 00:00:00 ms 1e-3>s -1.0e31 Temporal GSE Latitude GSE_LAT Spacecraft latitude in GSE coordinates deg Spherical GSE -90.0 90.0 -1.0e+31 DirectionAngle.ElevationAngle Positional GSE Longitude GSE_LON Spacecraft longitude in GSE coordinates deg Spherical GSE 0.0 360.0 -1.0e+31 DirectionAngle.AzimuthAngle Positional GSE Local Time GSE_LCT_T Local time in GSE coordinates hr 3600>s Spherical GSE 0.0 24.0 -1.0e+31 DirectionAngle.AzimuthAngle Positional GSM Latitude GSM_LAT Spacecraft latitude in GSM coordinates deg Spherical GSM -90.0 90.0 -1.0e+31 DirectionAngle.ElevationAngle Positional GSM Longitude GSM_LON Spacecraft longitude in GSM coordinates deg Spherical GSM 0.0 360.0 -1.0e+31 DirectionAngle.AzimuthAngle Positional Radial distance RADIUS Radial distance from the center of Earth Re 6.378e6>m Spherical GSE 0.0 250.0 -1.0e+31 Magnitude Positional GSE Position Vector XYZ_GSE Position in cartesian GSE coordinates Re 6.378e6>m Cartesian GSE 3 GSE X Component.I 1 GSE Y Component.J 2 GSE Z Component.K 3 -250.0 250.0 -1.0e+31 Positional GSM Position Vector XYZ_GSM Position in cartesian GSM coordinates Re 6.378e6>m Cartesian GSM 3 GSM X Component.I 1 GSM Y Component.J 2 GSM Z Component.K 3 -250.0 250.0 -1.0e+31 Positional