Name: SOHO Definitive Orbit, 10 min Data, Spacecraft Position and Velocity in GCI, GSE, GSE, HEC, and HG Coordinates
Creator: Fleck, Bernhard; Ireland, Jack
Published: 2026-04-10
License: https://spdx.org/licenses/CC0-1.0.html

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const indicator = document.getElementById("usa-banner-indicator"); if (details.style.display === "none") { details.style.display = "block"; indicator.textContent = "^"; } else { details.style.display = "none"; indicator.textContent = "v"; } } const monthName=new Array("January","February","March","April","May","June","July","August","September","October","November","December"); let currentDate = new Date(); let currentIsoDateStr = currentDate.toISOString().substring(0, 10); let currentDateStr = currentDate.getFullYear() + '-' + monthName[currentDate.getMonth()] + '-' + currentDate.getDate(); Data Access FTPS from SPDF (not with most browsers) HTTPS from SPDF CDAWeb WebService: CDAWeb Programmatic Data Access HAPI: CDAWeb HAPI Server SOHO Definitive Orbit, 10 min Data, Spacecraft Position and Velocity in GCI, GSE, GSE, HEC, and HG Coordinates var authors='Fleck, Bernhard; Ireland, Jack'; document.write(authors); (2026). SOHO Definitive Orbit, 10 min Data, Spacecraft Position and Velocity in GCI, GSE, GSE, HEC, and HG Coordinates. [Data set]. Space Physics Data Facility. https://doi.org/10.48322/51x1-ns05. Accessed on document.write(currentDateStr);. Note: Proper references, including Copy BibTeX Citation or other formats, should include the "Accessed on date" to identify the version of the resource being cited in a given publication. ResourceID spase://NASA/NumericalData/SOHO/Ephemeris/Definitive/PT10M Description SOHO Definitive Orbit, Spacecraft Position and Velocity in Geocentric Celestial Inertial, GCI, Geocentric Solar Ecliptic, GSE, Geocentric Solar Magnetospheric, GSM, Heliospheric Ecliptic, HEC, and Heliographic, HG, Coordinates Metadata Rights CC0-1.0: Creative Commons Zero v1.0 Universal Note CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license. View XML | Edit Details Version:2.7.1 NumericalData ResourceID spase://NASA/NumericalData/SOHO/Ephemeris/Definitive/PT10M NamingAuthority NASA ResourceType NumericalData ResourceHeader ResourceName SOHO Definitive Orbit, 10 min Data, Spacecraft Position and Velocity in GCI, GSE, GSE, HEC, and HG Coordinates DOI https://doi.org/10.48322/51x1-ns05 ReleaseDate 2026-07-21 12:07:14Z RevisionHistory RevisionEvent ReleaseDate 2021-04-27 15:38:11Z Note Only known prior ReleaseDate of the metadata RevisionEvent ReleaseDate 2025-11-01 12:34:56.789Z Note Revised ObservedRegion. JMW RevisionEvent ReleaseDate 2025-12-04 13:31:29Z Note Added MetadataRightsList and RightsList(s). Added ResourceType and NamingAuthority. Updated to 2.7.1. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. ZCB RevisionEvent ReleaseDate 2026-04-10 09:58:49Z Note Added new Contact(s). ZCB RevisionEvent ReleaseDate 2026-04-10 10:03:46Z Note Added PublicationInfo. ZCB RevisionEvent ReleaseDate 2026-04-30 16:41:57Z Note Added DOI. tlk RevisionEvent ReleaseDate 2026-06-26 13:28:02Z Note Add 'Z' to RevisionEvent:ReleaseDate(s), TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB RevisionEvent ReleaseDate 2026-07-21 12:07:14Z Note Added HelioData InformationURL. JWL Description SOHO Definitive Orbit, Spacecraft Position and Velocity in Geocentric Celestial Inertial, GCI, Geocentric Solar Ecliptic, GSE, Geocentric Solar Magnetospheric, GSM, Heliospheric Ecliptic, HEC, and Heliographic, HG, Coordinates PublicationInfo Authors Fleck, Bernhard; Ireland, Jack PublicationDate 2026-04-10 10:03:46Z PublishedBy Space Physics Data Facility Contacts Role Person StartDate StopDate Note 1. PrincipalInvestigator spase://SMWG/Person/Bernhard.Fleck 2. PrincipalInvestigator spase://SMWG/Person/Jack.Ireland 3. ProjectScientist spase://SMWG/Person/Joseph.B.Gurman 4. MetadataContact spase://SMWG/Person/Robert.E.McGuire 5. MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze InformationURL Name SOHO Satellite Attitude and Orbit Information Website URL https://soho.nascom.nasa.gov/about/orbit.html Description SOHO Satellite Attitude and Orbit Information Website InformationURL Name Satellite Situation Center, SSCWeb, System and Services URL https://sscweb.gsfc.nasa.gov Description The Satellite Situation Center Web, SSCWeb, Service has been developed and is operated jointly by the NASA/GSFC Space Physics Data Facility, SPDF, and the National Space Science Data Center, NSSDC, to support a Range of NASA Science Programs and to fulfill Key International NASA Responsibilities including those of NSSDC and the World Data Center-A for Rockets and Satellites. The Software and associated Database of SSCWeb together form a System to cast Geocentric Spacecraft Location Information into a Framework of Empirical Geophysical Regions and Mappings of Spacecraft Locations along Lines of the Earth's Magnetic Field. This Capability is one Key to Mission Science Planning, both Single Missions and Coordinated Observations of Multiple Spacecraft with Ground-Based Investigations, and to subsequent Multi-Mission Data Analysis. InformationURL Name HelioData URL https://helio.data.nasa.gov/dataset/SOHO_Ephemeris_Definitive_PT10M Description The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more. PriorIDs spase://VSPO/NumericalData/SOHO/Ephemeris/Definitive/PT10M AccessInformation RepositoryID spase://SMWG/Repository/NASA/GSFC/SPDF Availability Online AccessRights Open RightsList Rights SchemeURI https://spdx.org/licenses/ RightsIdentifierScheme SPDX RightsIdentifier CC0-1.0 RightsURI https://spdx.org/licenses/CC0-1.0.html RightsName Creative Commons Zero v1.0 Universal Note CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products AccessURL Name FTPS from SPDF (not with most browsers) URL ftps://spdf.gsfc.nasa.gov/pub/data/soho/orbit/def_or/ Description Access to Data in CDF Format via ftp from SPDF AccessURL Name HTTPS from SPDF URL https://spdf.gsfc.nasa.gov/pub/data/soho/orbit/def_or/ Description Access to Data in CDF Format via http from SPDF AccessURL Name CDAWeb URL https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=SO_OR_DEF&index=sp_phys ProductKey SO_OR_DEF Description Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb Format CDF Encoding None AccessDirectoryTemplate https://cdaweb.gsfc.nasa.gov/pub/data/soho/orbit/def_or/$Y AccessFilenameTemplate so_or_def_$Y$m$d_$v.cdf Acknowledgement . Please acknowledge the data providers and CDAWeb when using these data. AccessInformation RepositoryID spase://SMWG/Repository/NASA/GSFC/SPDF Availability Online AccessRights Open AccessURL Name CDAWeb Programmatic Data Access URL https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/SO_OR_DEF/clientLibraryExample/ Style WebService ProductKey SO_OR_DEF Description Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS. Format Binary Acknowledgement . Please acknowledge the data providers and CDAWeb when using these data. AccessInformation RepositoryID spase://SMWG/Repository/NASA/GSFC/SPDF Availability Online AccessRights Open RightsList Rights SchemeURI https://spdx.org/licenses/ RightsIdentifierScheme SPDX RightsIdentifier CC0-1.0 RightsURI https://spdx.org/licenses/CC0-1.0.html RightsName Creative Commons Zero v1.0 Universal Note CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products AccessURL Name CDAWeb HAPI Server URL https://cdaweb.gsfc.nasa.gov/hapi Style HAPI ProductKey SO_OR_DEF Description Web Service to this product using the HAPI interface. Format CSV Acknowledgement . Please acknowledge the data providers and CDAWeb when using these data. ProcessingLevel Calibrated InstrumentIDs spase://SMWG/Instrument/SOHO/Ephemeris MeasurementType Ephemeris TemporalDescription TimeSpan StartDate 1995-04-03 10:00:00Z StopDate 1997-09-09 23:50:00Z Cadence PT10M ObservedRegion Heliosphere ObservedRegion Heliosphere.NearEarth ObservedRegion Heliosphere.Inner Parameter #1 Name Epoch Time, Orbit ParameterKey Epoch Description EpochTime Orbit Caveats This parameter exhibits an increasing monotonic progression. Cadence PT10M Units ms UnitsConversion 1e-3>s RenderingHints AxisLabel Epoch ScaleMin 6.2877146619904e+13 ScaleMax 6.3776657018904e+13 ValidMin 01-Jul-1992 00:00:00.000 ValidMax 31-Dec-2020 23:59:59.000 FillValue -1.0e+31 Support SupportQuantity Temporal Parameter #2 Name Time PB5, Orbit Set Time series defined by using: EPOCH ParameterKey Time_PB5 Description Time in PB5 Format: Year, Day, Milliseconds Cadence PT10M Structure Size 3 Element Name Year Index 1 Units year ValidMin 1992 ValidMax 2020 RenderingHints AxisLabel year ScaleMin 1992 ScaleMax 2020 Element Name Day of Year (Jan 1 = day 1) Index 2 Units d ValidMin 183 ValidMax 366 RenderingHints AxisLabel day ScaleMin 183 ScaleMax 366 Element Name elapsed ms of day Index 3 Units ms ValidMin 0 ValidMax 86399000 RenderingHints AxisLabel msec ScaleMin 0 ScaleMax 86399000 FillValue -2147483648 Support SupportQuantity Temporal Parameter #3 Name Spacecraft Position, GCI Set Time series defined by using: EPOCH ParameterKey GCI_POS Description Spacecraft Position, Geocentric Inertial, GCI, Coordinates Cadence PT10M Units km UnitsConversion 1e3>m CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName GEI RenderingHints ValueFormat F17.5 ScaleMin -1.8e+06 ScaleMax 1.8e+06 Structure Size 3 Element Name x Index 1 RenderingHints AxisLabel x Element Name y Index 2 RenderingHints AxisLabel y Element Name z Index 3 RenderingHints AxisLabel z ValidMin -1.8e+06 ValidMax 1.8e+06 FillValue -1.0e+31 Support Qualifier Vector SupportQuantity Positional Parameter #4 Name Spacecraft Velocity, GCI Set Time series defined by using: EPOCH ParameterKey GCI_VEL Description Spacecraft Velocity, Geocentric Inertial, GCI, Coordinates Cadence PT10M Units km/s UnitsConversion 1e3>m/s CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName GEI RenderingHints ValueFormat F12.7 ScaleMin -12.0 ScaleMax 12.0 Structure Size 3 Element Name vx Index 1 RenderingHints AxisLabel x Element Name vy Index 2 RenderingHints AxisLabel y Element Name vz Index 3 RenderingHints AxisLabel z ValidMin -12.0 ValidMax 12.0 FillValue -1.0e+31 Support Qualifier Vector SupportQuantity Velocity Parameter #5 Name Spacecraft Position, GSE Set Time series defined by using: EPOCH ParameterKey GSE_POS Description Spacecraft Position, Geocentric Solar Ecliptic, GSE, Coordinates Cadence PT10M Units km UnitsConversion 1e3>m CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName GSE RenderingHints ValueFormat F17.5 ScaleMin -1.8e+06 ScaleMax 1.8e+06 Structure Size 3 Element Name x Index 1 RenderingHints AxisLabel x Element Name y Index 2 RenderingHints AxisLabel y Element Name z Index 3 RenderingHints AxisLabel z ValidMin -1.8e+06 ValidMax 1.8e+06 FillValue -1.0e+31 Support Qualifier Vector SupportQuantity Positional Parameter #6 Name Spacecraft Velocity, GSE Set Time series defined by using: EPOCH ParameterKey GSE_VEL Description Spacecraft Velocity, Geocentric Solar Ecliptic, GSE, Coordinates Cadence PT10M Units km/s UnitsConversion 1e3>m/s CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName GSE RenderingHints ValueFormat F12.7 ScaleMin -12.0 ScaleMax 12.0 Structure Size 3 Element Name vx Index 1 RenderingHints AxisLabel x Element Name vy Index 2 RenderingHints AxisLabel y Element Name vz Index 3 RenderingHints AxisLabel z ValidMin -12.0 ValidMax 12.0 FillValue -1.0e+31 Support Qualifier Vector SupportQuantity Velocity Parameter #7 Name Spacecraft Position, GSM Set Time series defined by using: EPOCH ParameterKey GSM_POS Description Spacecraft Position, Geocentric Solar Magnetospheric, GSM, Coordinates Cadence PT10M Units km UnitsConversion 1e3>m CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName GSM RenderingHints ValueFormat F17.5 ScaleMin -1.8e+06 ScaleMax 1.8e+06 Structure Size 3 Element Name x Index 1 RenderingHints AxisLabel x Element Name y Index 2 RenderingHints AxisLabel y Element Name z Index 3 RenderingHints AxisLabel z ValidMin -1.8e+06 ValidMax 1.8e+06 FillValue -1.0e+31 Support Qualifier Vector SupportQuantity Positional Parameter #8 Name Spacecraft Velocity, GSM Set Time series defined by using: EPOCH ParameterKey GSM_VEL Description Spacecraft Velocity, Geocentric Solar Magnetospheric, GSM, Coordinates Cadence PT10M Units km/s UnitsConversion 1e3>m/s CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName GSM RenderingHints ValueFormat F12.7 ScaleMin -12.0 ScaleMax 12.0 Structure Size 3 Element Name vx Index 1 RenderingHints AxisLabel x Element Name vy Index 2 RenderingHints AxisLabel y Element Name vz Index 3 RenderingHints AxisLabel z ValidMin -12.0 ValidMax 12.0 FillValue -1.0e+31 Support Qualifier Vector SupportQuantity Velocity Parameter #9 Name Sun Position, GCI Set Time series defined by using: EPOCH ParameterKey SUN_VECTOR Description Sun Position, Geocentric Inertial, GCI, Coordinates Cadence PT10M Units km UnitsConversion 1e3>m RenderingHints DisplayType TimeSeries ValueFormat F17.5 ScaleMin -1.6e+08 ScaleMax 1.6e+08 Structure Size 3 Element Name x Index 1 RenderingHints AxisLabel x Element Name y Index 2 RenderingHints AxisLabel y Element Name z Index 3 RenderingHints AxisLabel z ValidMin -1.6e+08 ValidMax 1.6e+08 FillValue -1.0e+31 Support SupportQuantity Other Parameter #10 Name Spacecraft Position, HEC Set Time series defined by using: EPOCH ParameterKey HEC_POS Description Spacecraft Position, Heliospheric Ecliptic, HEC, Coordinates Cadence PT10M Units km UnitsConversion 1e3>m CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName GSM RenderingHints ValueFormat F17.5 ScaleMin -1.6e+08 ScaleMax 1.6e+08 Structure Size 3 Element Name x Index 1 RenderingHints AxisLabel x Element Name y Index 2 RenderingHints AxisLabel y Element Name z Index 3 RenderingHints AxisLabel z ValidMin -1.6e+08 ValidMax 1.6e+08 FillValue -1.0e+31 Support Qualifier Vector SupportQuantity Positional Parameter #11 Name Spacecraft Velocity, HEC Set Time series defined by using: EPOCH ParameterKey HEC_VEL Description Spacecraft Velocity, Heliospheric Ecliptic, HEC, Coordinates Cadence PT10M Units km/s UnitsConversion 1e3>m/s CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName GSM RenderingHints ValueFormat F12.7 ScaleMin -12.0 ScaleMax 12.0 Structure Size 3 Element Name vx Index 1 RenderingHints AxisLabel x Element Name vy Index 2 RenderingHints AxisLabel y Element Name vz Index 3 RenderingHints AxisLabel z ValidMin -12.0 ValidMax 12.0 FillValue -1.0e+31 Support Qualifier Vector SupportQuantity Velocity Parameter #12 Name Carrington Rotation Number, Earth Set Time series defined by using: EPOCH ParameterKey CRN_EARTH Description Carrington Rotation Number, Earth Cadence PT10M CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName Carrington RenderingHints AxisLabel CRN ValueFormat I4 ScaleMin 1857 ScaleMax 2239 ValidMin 1857 ValidMax 2239 FillValue -2147483648 Support Qualifier DirectionAngle.AzimuthAngle SupportQuantity Positional Parameter #13 Name Earth Longitude, HG Set Time series defined by using: EPOCH ParameterKey LONG_EARTH Description Earth Longitude, Heliographic, HG, Coordinates Cadence PT10M Units rad CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName HG RenderingHints AxisLabel Helio Long ValueFormat F7.3 ScaleMin 0.0 ScaleMax 6.28319 ValidMin 0.0 ValidMax 6.28319 FillValue -1.0e+31 Support Qualifier DirectionAngle.AzimuthAngle SupportQuantity Positional Parameter #14 Name Earth Latitude, HG Set Time series defined by using: EPOCH ParameterKey LAT_EARTH Description Earth Latitude, Heliographic, HG, Coordinates Cadence PT10M Units rad CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName HG RenderingHints AxisLabel Helio Lat ValueFormat F7.3 ScaleMin -1.5708 ScaleMax 1.5708 ValidMin -1.5708 ValidMax 1.5708 FillValue -1.0e+31 Support Qualifier DirectionAngle.ElevationAngle SupportQuantity Positional Parameter #15 Name Spacecraft Longitude, HG Set Time series defined by using: EPOCH ParameterKey LONG_SPACE Description Spacecraft Longitude, Heliographic, HG, Coordinates Cadence PT10M Units rad CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName HG RenderingHints AxisLabel Helio Long ValueFormat F7.3 ScaleMin 0.0 ScaleMax 6.28319 ValidMin 0.0 ValidMax 6.28319 FillValue -1.0e+31 Support Qualifier DirectionAngle.AzimuthAngle SupportQuantity Positional Parameter #16 Name Spacecraft Latitude, HG Set Time series defined by using: EPOCH ParameterKey LAT_SPACE Description Spacecraft Latitude, Heliographic, HG, Coordinates Cadence PT10M Units rad CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName HG RenderingHints AxisLabel Helio Lat ValueFormat F7.3 ScaleMin -1.5708 ScaleMax 1.5708 ValidMin -1.5708 ValidMax 1.5708 FillValue -1.0e+31 Support Qualifier DirectionAngle.ElevationAngle SupportQuantity Positional