{
  "Spase": {
    "xmlns": "http://www.spase-group.org/data/schema",
    "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/Injun5/VLF/Field/PT0.001S",
      "NamingAuthority": "NASA",
      "ResourceType": "NumericalData",
      "ResourceHeader": {
        "ResourceName": "Injun 5 VLF Electric and Magnetic Field Data",
        "DOI": "https://doi.org/10.48322/ta6k-zn04",
        "ReleaseDate": "2025-12-04T13:29:35Z",
        "RevisionHistory": {
          "RevisionEvent": [
            {
              "ReleaseDate": "2020-07-07T21:14:43Z",
              "Note": "Only known prior ReleaseDate of the metadata"
            },
            {
              "ReleaseDate": "2025-11-14T16:02:25Z",
              "Note": "Added PublicationInfo. Added ResourceType and NamingAuthority. ZCB"
            },
            {
              "ReleaseDate": "2025-12-04T13:29:35Z",
              "Note": "Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB"
            }
          ]
        },
        "Description": "This set of data came from the Injun 5 Very Low Frequency experiment that covered the frequency range from dc to 105 kHz for electric fields and from 30 Hz to 10 kHz for magnetic fields. Magnitudes of naturally occurring magnetospheric electric fields were measured to an accuracy of ± 30 mv/m.  Each record covers ten milliseconds of data. ",
        "Acknowledgement": "Please acknowledge Dr. Donald A. Gurnett, the Principal Investigator, the Space Physics Data Faccility and\nNSSDC for usage of this data set in presentations and publications.",
        "PublicationInfo": {
          "Authors": "Gurnett, Donald A.",
          "PublicationDate": "2025-11-14T16:02:25Z",
          "PublishedBy": "Space Physics Data Facility"
        },
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Donald.A.Gurnett",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/H.Kent.Hills",
            "Role": "GeneralContact"
          }
        ],
        "PriorID": "spase://VSPO/NumericalData/Injun5/VLF/Field/PT0.001S"
      },
      "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/injun/"
          },
          {
            "Name": "HTTPS from SPDF",
            "URL": "https://spdf.gsfc.nasa.gov/pub/data/injun/"
          }
        ],
        "Format": "Text"
      },
      "ProviderProcessingLevel": "CALIBRATED",
      "InstrumentID": "spase://SMWG/Instrument/Injun5/VLF",
      "MeasurementType": [
        "MagneticField",
        "ElectricField"
      ],
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "1968-08-29T00:00:00",
          "StopDate": "1968-11-25T00:00:00"
        },
        "Cadence": "PT0.001S"
      },
      "ObservedRegion": [
        "Earth.NearSurface.Atmosphere",
        "Earth.Magnetosphere"
      ]
    }
  }
}