{ "Spase": { "xmlns": "http://www.spase-group.org/data/schema", "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance", "xsi:schemaLocation": "https://www.spase-group.org/data/schema https://www.spase-group.org/data/schema/spase-2.7.1.xsd", "Version": "2.7.1", "MetadataRightsList": { "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 SPASE metadata descriptions" } }, "NumericalData": { "ResourceID": "spase://NASA/NumericalData/Helios1/MAGandPLS/PT1H", "NamingAuthority": "NASA", "ResourceType": "NumericalData", "ResourceHeader": { "ResourceName": "Helios 1 hourly merged magnetic field and plasma data", "DOI": "https://doi.org/10.48322/n16w-2j16", "ReleaseDate": "2025-12-04T13:29:20Z", "RevisionHistory": { "RevisionEvent": [ { "ReleaseDate": "2021-04-27T15:38:11Z", "Note": "Only known prior ReleaseDate of the metadata" }, { "ReleaseDate": "2025-11-14T16:02:22Z", "Note": "Added PublicationInfo. 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" }, { "ReleaseDate": "2025-12-04T13:29:20Z", "Note": "Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB" } ] }, "Description": "This is an hourly resolution, merged magnetic field and plasma data set created at NSSDC for COHOWeb. Magnetic field vectors and plasma flow direction angles are given in RTN coordinates. Spacecraft position data are given in Heliographic inertial (HGI coordinates).", "Acknowledgement": "Please acknowledge N.F. Ness (P.I.) and F. Mariani for magnetic field data and H. Rosenbauer (P.I.) and R. Schwenn for plasma data, and NSSDC or GSFC-SPDF", "PublicationInfo": { "Authors": "Ness, Norman F.; Rosenbauer, Helmut R.; Mariani, Franco; Schwenn, Rainer", "PublicationDate": "2025-11-14T16:02:22Z", "PublishedBy": "Space Physics Data Facility" }, "Contact": [ { "PersonID": "spase://SMWG/Person/Norman.F.Ness", "Role": "PrincipalInvestigator" }, { "PersonID": "spase://SMWG/Person/Helmut.R.Rosenbauer", "Role": "PrincipalInvestigator" }, { "PersonID": "spase://SMWG/Person/Franco.Mariani", "Role": "CoInvestigator" }, { "PersonID": "spase://SMWG/Person/Rainer.Schwenn", "Role": "CoInvestigator" }, { "PersonID": "spase://SMWG/Person/Natalia.E.Papitashvili", "Role": "GeneralContact" } ], "InformationURL": { "Name": "Readme file at SPDF", "URL": "https://spdf.gsfc.nasa.gov/pub/data/helios/helios1/merged/he1mgd.txt" }, "PriorID": [ "spase://VHO/NumericalData/Helios1/MAGandPLS/PT1H", "spase://VSPO/NumericalData/Helios1/MAGandPLS/PT1H" ] }, "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/helios/helios1/merged/", "Description": "for annual files via ftp" }, { "Name": "HTTPS from SPDF", "URL": "https://spdf.gsfc.nasa.gov/pub/data/helios/helios1/merged/", "Description": "In CDF via HTTP from SPDF" }, { "Name": "CDAWeb", "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=HELIOS1_COHO1HR_MERGED_MAG_PLASMA&index=sp_phys", "ProductKey": "HELIOS1_COHO1HR_MERGED_MAG_PLASMA", "Description": "For CDAWeb subset,plot and list capabilities" }, { "Name": "COHOWeb plots and lists", "URL": "https://omniweb.gsfc.nasa.gov/coho/form/helios1.html", "Description": "Helios 1-specific page for plots and lists" }, { "Name": "COHOweb top page", "URL": "https://omniweb.gsfc.nasa.gov/coho/", "Description": "Plots, lists, scatter plots, regressions, distributions, means, etc." } ], "Format": "Text", "DataExtent": { "Quantity": "1.2", "Units": "MB", "Per": "P1Y" }, "Acknowledgement": "Please acknowledge N.F. Ness (P.I.) and F. Mariani for magnetic field data and H. Rosenbauer (P.I.) and R. Schwenn for plasma data, and NSSDC or GSFC-SPDF" }, { "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": "HELIOS1_COHO1HR_MERGED_MAG_PLASMA", "Description": "Web Service to this product using the HAPI interface." }, "Format": "CSV", "Acknowledgement": "Please acknowledge N.F. Ness (P.I.) and F. Mariani for magnetic field data and H. Rosenbauer (P.I.) and R. Schwenn for plasma data, and NSSDC or GSFC-SPDF" } ], "InstrumentID": [ "spase://SMWG/Instrument/Helios1/E1", "spase://SMWG/Instrument/Helios1/E3" ], "MeasurementType": [ "MagneticField", "ThermalPlasma" ], "TemporalDescription": { "TimeSpan": { "StartDate": "1974-12-12T00:00:00", "StopDate": "1981-06-14T00:00:00", "Note": "Plasma data end on day 364 of 1980." }, "Cadence": "PT1H" }, "ObservedRegion": "Heliosphere.Inner", "Parameter": [ { "Name": "Year", "ParameterKey": "Column1", "Description": "Four digit Year", "Cadence": "PT1H", "FillValue": "999.9999", "Support": { "SupportQuantity": "Temporal" } }, { "Name": "Day", "ParameterKey": "Column2", "Description": "Decimal Day of Year", "Cadence": "PT1H", "FillValue": "999.9999", "Support": { "SupportQuantity": "Temporal" } }, { "Name": "Hour", "ParameterKey": "Column3", "Description": "Hour", "Cadence": "PT1H", "FillValue": "999.9999", "Support": { "SupportQuantity": "Temporal" } }, { "Name": "Carrington Rotation Number", "ParameterKey": "Column4", "Description": "Carrington Rotation Number seen by an Earth based observer at the start of the data interval", "Cadence": "PT1H", "FillValue": "999.9999", "Support": { "SupportQuantity": "Temporal" } }, { "Name": "H1 radial distance", "ParameterKey": "Column05", "Description": "Heliocentric radial distance of Helios 1 in AU", "Cadence": "PT1H", "Units": "AU", "Support": { "SupportQuantity": "Positional" } }, { "Name": "H1 latitude", "ParameterKey": "Column06", "Description": "Heliographic Inertial elevation angle of Helios 1 in deg", "Cadence": "PT1H", "Units": "deg", "CoordinateSystem": { "CoordinateRepresentation": "Spherical", "CoordinateSystemName": "HGI" }, "Support": { "SupportQuantity": "Positional" } }, { "Name": "H1 longitude", "ParameterKey": "Column07", "Description": "Heliographic Inertial azimuthal angle of Helios 1 in deg", "Cadence": "PT1H", "Units": "deg", "CoordinateSystem": { "CoordinateRepresentation": "Spherical", "CoordinateSystemName": "HGI" }, "Support": { "SupportQuantity": "Positional" } }, { "Name": "ESS angle", "ParameterKey": "Column08", "Description": "Earth-Sun-Spacecraft separation angle", "Cadence": "PT1H", "Units": "deg", "Support": { "SupportQuantity": "Positional" } }, { "Name": "Magnetic Field Vector, SSE", "Description": "Hourly averages of SSE (spacecraft-centric solar ecliptic) components of fine time scale magnetic field vectors", "Cadence": "PT1H", "Units": "nT", "CoordinateSystem": { "CoordinateRepresentation": "Cartesian", "CoordinateSystemName": "SSE" }, "Structure": { "Size": "3", "Description": "X,Y,Z components", "Element": [ { "Name": "X component", "Qualifier": "Component.I", "Index": "1", "ParameterKey": "Column09" }, { "Name": "Y component", "Qualifier": "Component.J", "Index": "2", "ParameterKey": "Column10" }, { "Name": "Z component", "Qualifier": "Component.K", "Index": "3", "ParameterKey": "Column11" } ] }, "FillValue": "99999.99", "Field": { "Qualifier": "Vector", "FieldQuantity": "Magnetic" } }, { "Name": "Magnetic Field Vector", "Description": "Hourly averages of RTN components of fine time scale magnetic field vectors", "Cadence": "PT1H", "Units": "nT", "CoordinateSystem": { "CoordinateRepresentation": "Cartesian", "CoordinateSystemName": "RTN" }, "Structure": { "Size": "3", "Description": "R,T,N components", "Element": [ { "Name": "R component", "Qualifier": "Component.I", "Index": "1", "ParameterKey": "Column12" }, { "Name": "T component", "Qualifier": "Component.J", "Index": "2", "ParameterKey": "Column13" }, { "Name": "N component", "Qualifier": "Component.K", "Index": "3", "ParameterKey": "Column14" } ] }, "FillValue": "99999.99", "Field": { "Qualifier": "Vector", "FieldQuantity": "Magnetic" } }, { "Name": "Magnetic Field Magnitude", "ParameterKey": "Column15", "Description": "Hourly average of fine time scale magnetic field magnitudes", "Cadence": "PT1H", "Units": "nT", "FillValue": "99999.99", "Field": { "Qualifier": "Magnitude", "FieldQuantity": "Magnetic" } }, { "Name": "Flow speed", "ParameterKey": "Column16", "Description": "Hourly averaged solar wind plasma flow speed", "Cadence": "PT1H", "Units": "km/s", "FillValue": "9999.9", "Particle": { "ParticleType": "Proton", "Qualifier": "Average", "ParticleQuantity": "FlowSpeed" } }, { "Name": "Flow elevation angle", "ParameterKey": "Column17", "Description": "Hourly averaged solar wind plasma flow elevation angle", "Cadence": "PT1H", "Units": "deg", "CoordinateSystem": { "CoordinateRepresentation": "Spherical", "CoordinateSystemName": "RTN" }, "FillValue": "9999.9", "Particle": { "ParticleType": "Proton", "Qualifier": "DirectionAngle.ElevationAngle", "ParticleQuantity": "FlowVelocity" } }, { "Name": "Flow azimuth angle", "ParameterKey": "Column18", "Description": "Hourly averaged solar wind plasma flow azimuthal angle", "Cadence": "PT1H", "CoordinateSystem": { "CoordinateRepresentation": "Spherical", "CoordinateSystemName": "RTN" }, "FillValue": "9999.9", "Particle": { "ParticleType": "Proton", "Qualifier": "DirectionAngle.AzimuthAngle", "ParticleQuantity": "FlowVelocity" } }, { "Name": "Density", "ParameterKey": "Column19", "Description": "Hourly averaged solar wind plasma density", "Cadence": "PT1H", "Units": "n/cc", "FillValue": "999.9", "Particle": { "ParticleType": "Proton", "Qualifier": "Average", "ParticleQuantity": "NumberDensity" } }, { "Name": "Temperature", "ParameterKey": "Column20", "Description": "Hourly averaged solar wind plasma temperature (radial component)", "Cadence": "PT1H", "Units": "degK", "FillValue": "9999999.", "Particle": { "ParticleType": "Proton", "Qualifier": "Average", "ParticleQuantity": "Temperature" } } ] } } }