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/THEMIS/C/HelioWeb/Ephemeris/PT1H NASA NumericalData ARTEMIS-P2 Ephemeris, Heliocentric Trajectories, Heliographic, Heliographic Inertial, and Solar Ecliptic Coordinates, HelioWeb, Hourly Data https://doi.org/10.48322/vxpk-5c48 2026-02-02T13:24:38Z THEMIS C Heliocentric orbit in Heliographic Inertial, Heliographic rotating, and Solar Ecliptic coordinates at a 1 hourly cadence. For coordinate definitions see https://omniweb.gsfc.nasa.gov/coho/helios/coor_des.html. Please acknowledge N.E. Papitashvili for use of the Data Papitashvili, Natalia, E. 2023-01-01T00:00:00 Space Physics Data Facility spase://SMWG/Person/Natalia.E.Papitashvili GeneralContact spase://SMWG/Person/Robert.M.Candey MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze MetadataContact Heliocentric Trajectories HelioWeb Data Service, NASA GSFC https://omniweb.gsfc.nasa.gov/coho/helios/heli.html Heliocentric trajectories for selected spacecraft, planets, and comets, HelioWeb data service, hosted by NASA GSFC Heliocentric Trajectories HelioWeb Data Service Usage Instructions, NASA GSFC https://omniweb.gsfc.nasa.gov/coho/helios/about_helioweb.html Instructions for using the Heliocentric Trajectories HelioWeb data service, hosted by NASA GSFC Heliocentric Trajectories HelioWeb Data Service Usage via CURL or WGET Commands, NASA GSFC https://omniweb.gsfc.nasa.gov/coho/helios/helioweb_command_line_sample.txt Instructions for using the Heliocentric Trajectories HelioWeb data service via CURL or WGET commands, hosted by NASA GSFC HG, HGI, and SE Coordinate System Definitions, NASA GSFC https://omniweb.gsfc.nasa.gov/coho/helios/coor_des.html Definitions for the Heliographic, HG, Heliographic Inertial, HGI, and Solar Ecliptic, SE, Coordinate Systems, hosted by NASA GSFC Satellite Situation Center (SSCWeb) System and Services, NASA GSFC https://sscweb.gsfc.nasa.gov Satellite Situation Center (SSCWeb) web page offering a variety of services that provide access to orbit trajectory graphics and listings, hosted by NASA GSFC HORIZONS Web Interface, NASA JPL https://ssd.jpl.nasa.gov/horizons.cgi HORIZONS Web Interface, a web page that provides limited access to the JPL HORIZONS system which can be used to generate ephemerides for solar system bodies Helio1Day version SPASE DOI https://doi.org/10.48322/axy8-z379 Deprecated version of this SPASE record which has a daily cadence. spase://NASA/NumericalData/THEMIS/C/HelioWeb/Ephemeris/P1D Supersedes The current resource description has replaced the SPASE record listed above. spase://VSPO/NumericalData/THEMIS/C/HelioWeb/Ephemeris/P1D 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/themis/thc/helio1hr/ Access to Data in CDF Format via ftp from SPDF HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/themis/thc/helio1hr/ Access to Data in CDF Format via http from SPDF CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=THC_HELIO1HR_POSITION&index=sp_phys THC_HELIO1HR_POSITION Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb CDF None https://cdaweb.gsfc.nasa.gov/pub/data/themis/thc/helio1hr thc_helio1hr_position_$Y$m$d_$v.cdf Please acknowledge N.E. Papitashvili. Please acknowledge the Data Providers and CDAWeb when using these Data. spase://SMWG/Repository/NASA/GSFC/SPDF Online Open CDAWeb Programmatic Data Access https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/THC_HELIO1HR_POSITION/clientLibraryExample/ THC_HELIO1HR_POSITION Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS. Binary Please acknowledge N.E. Papitashvili. Please acknowledge the Data Providers and CDAWeb when using these Data. 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 THC_HELIO1HR_POSITION Web Service to this product using the HAPI interface. CSV Please acknowledge N.E. Papitashvili. Please acknowledge the Data Providers and CDAWeb when using these Data. Calibrated spase://SMWG/Instrument/THEMIS/C/Ephemeris Ephemeris 2009-01-23T00:00:00.000 2019-10-23T00:00:00.000 PT1H Earth.Moon Earth.Magnetosphere.Plasmasphere Earth.Magnetosphere.RadiationBelt Heliosphere.NearEarth Earth.Magnetosheath Earth.Magnetosphere.Main Earth.Magnetosphere.Magnetotail Heliosphere.NearEarth Epoch Time Epoch Epoch Time, beginning of interval This Parameter exhibits an increasing Monotonic Progression PT1H ms 1.0e-3>s Epoch E14.8 6.2987652219904e+13 6.3745034619904e+13 LinearScale 01-Jan-1996 00:00:00.000 01-Jan-2020 00:00:00.000 31-Dec-9999 23:59:59.999 Temporal ARTEMIS-P2 Position, Heliocentric Radial Distance Time Series defined by using: EPOCH RAD_AU ARTEMIS-P2 Position, Heliocentric Radial Distance PT1H AU 1.495978706961e11>m TimeSeries RAD_AU F8.2 0.0 1000.0 -1.0e+31 Temporal ARTEMIS-P2 Position, Latitude, Solar Ecliptic Coordinates Time Series defined by using: EPOCH SE_LAT ARTEMIS-P2 Position, Latitude, Solar Ecliptic, SE, Spherical Coordinates PT1H ° 0.0174532925>rad Spherical SE TimeSeries SE_LAT F8.1 -90.0 90.0 -1.0e+31 DirectionAngle.ElevationAngle Scalar Positional ARTEMIS-P2 Position, Longitude, Solar Ecliptic Coordinates Time Series defined by using: EPOCH SE_LON ARTEMIS-P2 Position, Longitude, Solar Ecliptic, SE, Spherical Coordinates PT1H ° 0.0174532925>rad Spherical SE TimeSeries SE_LON F8.1 0.0 360.0 -1.0e+31 DirectionAngle.AzimuthAngle Scalar Positional ARTEMIS-P2 Position, Latitude, Heliographic Coordinates Time Series defined by using: EPOCH HG_LAT ARTEMIS-P2 Position, Latitude, Heliographic, HG, Spherical Coordinates PT1H ° 0.0174532925>rad Spherical HG TimeSeries HG_LAT F8.1 -90.0 90.0 -1.0e+31 DirectionAngle.ElevationAngle Scalar Positional ARTEMIS-P2 Position, Longitude, Heliographic Coordinates Time Series defined by using: EPOCH HG_LON ARTEMIS-P2 Position, Longitude, Heliographic, HG, Spherical Coordinates PT1H ° 0.0174532925>rad Spherical HG TimeSeries HG_LON F8.1 0.0 360.0 -1.0e+31 DirectionAngle.AzimuthAngle Scalar Positional ARTEMIS-P2 Position, Latitude, Heliographic Inertial Coordinates Time Series defined by using: EPOCH HGI_LAT ARTEMIS-P2 Position, Latitude, Heliographic Inertial, HGI, Spherical Coordinates PT1H ° 0.0174532925>rad Spherical HGI TimeSeries HGI_LAT F8.1 -90.0 90.0 -1.0e+31 DirectionAngle.ElevationAngle Scalar Positional ARTEMIS-P2 Position, Longitude, Heliographic Inertial Coordinates Time Series defined by using: EPOCH HGI_LON ARTEMIS-P2 Position, Longitude, Heliographic Inertial, HGI, Spherical Coordinates PT1H ° 0.0174532925>rad Spherical HGI TimeSeries HGI_LON F8.1 0.0 360.0 -1.0e+31 DirectionAngle.AzimuthAngle Scalar Positional