{
  "Spase": {
    "xmlns": "http://www.spase-group.org/data/schema",
    "Version": "2.2.2",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/Helios1/E4/PT8S",
      "ResourceHeader": {
        "ResourceName": "Helios 1 Magnetic Field Spectral Density, offline at NSSDC",
        "ReleaseDate": "2021-03-11T18:39:11Z",
        "Description": "This data set contains 8-sec averaged and peak spectral densities of magnetic field component variations in 8 spectral bands with center frequencies logarithmically equispaced between 6.8 Hz and 1470 Hz.  Data records also contain time, spacecraft position, spacecraft-sun-Earth angle, spin vector direction, data quality flags, etc.",
        "Acknowledgement": "Please acknowledge the PI, Dr. Fritz Neubauer, and NSSDC.",
        "Contact": {
          "PersonID": "spase://SMWG/Person/Fritz.M.Neubauer",
          "Role": "PrincipalInvestigator"
        },
        "InformationURL": {
          "Name": "FTPS from SPDF (not with most browsers)",
          "URL": "https://spdf.gsfc.nasa.gov/pub/documents/old/documentation_from_nssdc/dataset_catalogs/DSC_0506.pdf"
        },
        "PriorID": [
          "spase://VSPO/NumericalData/SPHE_00177",
          "spase://VSPO/NumericalData/Helios1/E4/PT8S"
        ]
      },
      "AccessInformation": {
        "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
        "Availability": "Offline",
        "AccessRights": "Open",
        "AccessURL": {
          "Name": "NSSDC",
          "URL": "https://nssdc.gsfc.nasa.gov/nssdc/obtaining_data.html"
        },
        "Format": "Binary",
        "DataExtent": {
          "Quantity": "600",
          "Units": "MB"
        }
      },
      "ProcessingLevel": "Uncalibrated",
      "InstrumentID": "spase://SMWG/Instrument/Helios1/E4",
      "MeasurementType": [
        "MagneticField",
        "Spectrum"
      ],
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "1974-12-10T00:00:00",
          "StopDate": "1975-09-20T00:00:00"
        },
        "Cadence": "PT8S"
      },
      "ObservedRegion": "Heliosphere.Inner",
      "Parameter": {
        "Name": "Magnetic field spectral density",
        "Description": "Eight spectral densities for each of two field components (the spin-aligned component and one of the normal-to-spin-vector components) for either mean values or peak values (determined by flag set elsewhere in data record).",
        "Caveats": "Data records actually contain sensor output voltages and conversion factors for transforming to spectral densities.",
        "Cadence": "PT8S",
        "Units": "Volts",
        "CoordinateSystem": {
          "CoordinateRepresentation": "Cartesian",
          "CoordinateSystemName": "GSE"
        },
        "Structure": {
          "Size": "2 8",
          "Description": "spectral densities for 8 frequency channels, for 2 magnetic field components"
        },
        "Field": {
          "FieldQuantity": "Magnetic"
        }
      }
    }
  }
}