{
  "Spase": {
    "xmlns": "http://www.spase-group.org/data/schema",
    "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance",
    "xsi:schemaLocation": "http://www.spase-group.org/data/schema  https://www.spase-group.org/data/schema/spase-2_3_2.xsd",
    "Version": "2.3.2",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/PioneerVenusOrbiter/MAGandPLS/PT1H",
      "ResourceHeader": {
        "ResourceName": "Pioneer Venus Orbiter (PVO) hourly merged magnetic field and plasma data",
        "ReleaseDate": "2021-04-27T15:38:11Z",
        "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 the magnetic field and plasma Principal Investigators, Drs. C.T. Russell and P. Gazis, and NSSDC or GSFC-SPDF",
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Christopher.T.Russell",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/Paul.R.Gazis",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/Natalia.E.Papitashvili",
            "Role": "GeneralContact"
          }
        ],
        "InformationURL": {
          "Name": "Readme file from SPDF",
          "URL": "https://spdf.gsfc.nasa.gov/pub/data/pioneer/pioneer_venus/merged/coho1hr_magplasma_ascii/pvomgd.txt"
        },
        "PriorID": [
          "spase://VHO/NumericalData/Pioneer_Venus/MAGandPLS/PT1H",
          "spase://VSPO/NumericalData/PioneerVenusOrbiter/MAGandPLS/PT1H"
        ]
      },
      "AccessInformation": [
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "AccessURL": [
            {
              "Name": "FTPS from SPDF (not with most browsers)",
              "URL": "ftps://spdf.gsfc.nasa.gov/pub/data/pioneer/pioneer_venus/merged/",
              "Description": "for annual files via ftp"
            },
            {
              "Name": "HTTPS from SPDF",
              "URL": "https://spdf.gsfc.nasa.gov/pub/data/pioneer/pioneer_venus/merged/",
              "Description": "In CDF via HTTP from SPDF"
            }
          ],
          "Format": "CDF"
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb",
          "Availability": "Online",
          "AccessRights": "Open",
          "AccessURL": [
            {
              "Name": "CDAWeb",
              "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=PIONEERVENUS_COHO1HR_MERGED_MAG_PLASMA&index=sp_phys",
              "ProductKey": "PIONEERVENUS_COHO1HR_MERGED_MAG_PLASMA",
              "Description": "PIONEERVENUS_COHO1HR_MERGED_MAG_PLASMA"
            },
            {
              "Name": "COHOWeb plots and lists",
              "URL": "https://omniweb.sci.gsfc.nasa.gov/coho/form/pvo.html",
              "Description": "Pioneer_Venus-specific page for plots and lists"
            },
            {
              "Name": "COHOweb top page",
              "URL": "https://omniweb.sci.gsfc.nasa.gov/coho/",
              "Description": "Plots, lists, scatter plots, regressions, distributions, means, etc."
            }
          ],
          "Format": "Text",
          "Acknowledgement": "Please acknowledge the magnetic field and plasma Principal Investigators, Drs. E. Smith and P. Gazis, and NSSDC or GSFC-SPDF"
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "AccessURL": {
            "Name": "CDAWeb HAPI Server",
            "URL": "https://cdaweb.gsfc.nasa.gov/hapi",
            "Style": "HAPI",
            "ProductKey": "PIONEERVENUS_COHO1HR_MERGED_MAG_PLASMA",
            "Description": "Web Service to this product using the HAPI interface."
          },
          "Format": "CSV",
          "Acknowledgement": "Please acknowledge the magnetic field and plasma Principal Investigators, Drs. E. Smith and P. Gazis, and NSSDC or GSFC-SPDF"
        }
      ],
      "InstrumentID": [
        "spase://SMWG/Instrument/PioneerVenusOrbiter/OMAG",
        "spase://SMWG/Instrument/PioneerVenusOrbiter/ORPA"
      ],
      "MeasurementType": [
        "MagneticField",
        "ThermalPlasma"
      ],
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "1978-12-05T00:00:00",
          "StopDate": "1992-10-09T00:00:00",
          "Note": "Plasma data end on Oct. 9, 1992. Magnetic field data end on Aug. 7, 1988."
        },
        "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": "PVO Location relative to Venus",
          "Description": "Pioneer Venus location relative to the center of Venus, in Venus Solar Orbital coordinates (x from Venus to sun, z northward from Venus orbit plane)",
          "Caveats": "The data set contains Venus-centered PVO location in Venus Solar Orbital coordinates. (X from Venus to sun, Z positive northward from Venus orbit plane). This coordinate system is presently not available in the data model. \"SSE\" (spacecraft solar ecliptic) is used as an approximation. Most if not all heliospheric studies for which hourly data are used, assuming the data were taken as the location of the center of Venus should be fine.",
          "Cadence": "PT1H",
          "Units": "Rv",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "SSE"
          },
          "Structure": {
            "Size": "3",
            "Description": "X,Y,Z components",
            "Element": [
              {
                "Name": "X component",
                "Qualifier": "Component.I",
                "Index": "1",
                "ParameterKey": "Column04"
              },
              {
                "Name": "Y component",
                "Qualifier": "Component.J",
                "Index": "2",
                "ParameterKey": "Column05"
              },
              {
                "Name": "Z component",
                "Qualifier": "Component.K",
                "Index": "3",
                "ParameterKey": "Column06"
              }
            ]
          },
          "FillValue": "9999.9",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Venus radial distance",
          "ParameterKey": "Column07",
          "Description": "Heliocentric radial distance of Planet Venus in AU",
          "Cadence": "PT1H",
          "Units": "AU",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Venus latitude",
          "ParameterKey": "Column08",
          "Description": "Heliographic Inertial elevation angle of Planet Venus in deg",
          "Cadence": "PT1H",
          "Units": "deg",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Spherical",
            "CoordinateSystemName": "HGI"
          },
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Venus longitude",
          "ParameterKey": "Column09",
          "Description": "Heliographic Inertial azimuthal angle of Planet Venus in deg",
          "Cadence": "PT1H",
          "Units": "deg",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Spherical",
            "CoordinateSystemName": "HGI"
          },
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Magnetic Field Vector",
          "Description": "Hourly averages of XYZ components of fine time scale magnetic field vectors. Coordinate System is Venus Solar Orbital (VSO)",
          "Cadence": "PT1H",
          "Units": "nT",
          "Structure": {
            "Size": "3",
            "Description": "X, Y, Z components in Venus Solar Orital (VSO) coordinates",
            "Element": [
              {
                "Name": "X component",
                "Qualifier": "Component.I",
                "Index": "1",
                "ParameterKey": "Column10"
              },
              {
                "Name": "Y component",
                "Qualifier": "Component.J",
                "Index": "2",
                "ParameterKey": "Column11"
              },
              {
                "Name": "Z component",
                "Qualifier": "Component.K",
                "Index": "3",
                "ParameterKey": "Column12"
              }
            ]
          },
          "FillValue": "999.9999",
          "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": "Column13"
              },
              {
                "Name": "T component",
                "Qualifier": "Component.J",
                "Index": "2",
                "ParameterKey": "Column14"
              },
              {
                "Name": "N component",
                "Qualifier": "Component.K",
                "Index": "3",
                "ParameterKey": "Column15"
              }
            ]
          },
          "FillValue": "999.9999",
          "Field": {
            "Qualifier": "Vector",
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "Magnetic Field Magnitude",
          "ParameterKey": "Column16",
          "Description": "Hourly average of fine time scale magnetic field magnitudes",
          "Cadence": "PT1H",
          "Units": "nT",
          "FillValue": "999.99",
          "Field": {
            "Qualifier": "Magnitude",
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "Flow speed",
          "ParameterKey": "Column17",
          "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": "Column18",
          "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": "Column19",
          "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": "Column20",
          "Description": "Hourly averaged solar wind plasma density",
          "Cadence": "PT1H",
          "Units": "n/cc",
          "FillValue": "999.9999",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "Average",
            "ParticleQuantity": "NumberDensity"
          }
        },
        {
          "Name": "Temperature",
          "ParameterKey": "Column21",
          "Description": "Hourly averaged solar wind plasma temperature",
          "Cadence": "PT1H",
          "Units": "degK",
          "FillValue": "9999999.",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "Average",
            "ParticleQuantity": "Temperature"
          }
        }
      ]
    }
  }
}