{
  "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/Hawkeye/MAG/PT1.9S",
      "NamingAuthority": "NASA",
      "ResourceType": "NumericalData",
      "ResourceHeader": {
        "ResourceName": "Hawkeye Magnetometer 1.9-s Data",
        "AlternateName": "HK_H0_MAG",
        "ReleaseDate": "2025-12-04T13:29:19Z",
        "RevisionHistory": {
          "RevisionEvent": [
            {
              "ReleaseDate": "2021-04-27T15:38:11Z",
              "Note": "Only known prior ReleaseDate of the metadata"
            },
            {
              "ReleaseDate": "2024-01-30T09:57:00.000",
              "Note": "removed line feed in Contact, SAB"
            },
            {
              "ReleaseDate": "2025-09-18T11:27:06Z",
              "Note": "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": "2025-12-04T13:29:19Z",
              "Note": "Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB"
            }
          ]
        },
        "Description": "This level 0 data set contains investigator-provided magnetic field data at 1.9-second resolution from the Hawkeye magnetometer instrument.  The data set contains despun data including the following parameters: scalar magnetic field strength; vector magnetic field in Cartesian GSM and SM coordinates; spacecraft radial distance from the center of Earth; spacecraft position in Cartesian GSM and SM coordinates; despin method indicator (0: not despun; 1: optical aspect; 2: sun pulse; 3: array voltage; 4: mag field model; 4/5: solar array method); and an estimate of the angular uncertainty in magnetic field direction (set to zero for despin = 1 or 2).  For a reference paper on despinning technique, see Boardsen, S. and R.L. Kessel, Spin Index Determination of the Hawkeye Spacecraft, J. Spacecraft and Rockets, 39, 780-787, 2002. ",
        "PublicationInfo": {
          "Authors": "Van Allen, James A.",
          "PublicationDate": "2025-09-18T11:27:06Z",
          "PublishedBy": "Space Physics Data Facility"
        },
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Scott.Boardsen",
            "Role": "GeneralContact"
          },
          {
            "PersonID": "spase://SMWG/Person/James.A.Van.Allen",
            "Role": "PrincipalInvestigator"
          }
        ],
        "PriorID": "spase://VSPO/NumericalData/Hawkeye/MAG/PT1.9S"
      },
      "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/hawkeye/h0/mag/",
              "Description": "FTP access to repository of Hawkeye Magnometer data in CDF format at NASA CDAWeb."
            },
            {
              "Name": "HTTPS from SPDF",
              "URL": "https://spdf.gsfc.nasa.gov/pub/data/hawkeye/h0/mag/",
              "Description": "In CDF via HTTP from SPDF"
            }
          ],
          "Format": "CDF",
          "Acknowledgement": "Please acknowledge data provider at University of Iowa and SPDF when using these data."
        },
        {
          "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",
            "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=HK_H0_MAG&index=sp_phys",
            "ProductKey": "HK_H0_MAG",
            "Description": "Repository of Hawkeye data at NASA CDAWeb, accessible via web interface. Name of the data resource: HK_H0_MAG\n"
          },
          "Format": "Text"
        },
        {
          "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": "HK_H0_MAG",
            "Description": "Web Service to this product using the HAPI interface."
          },
          "Format": "CSV"
        }
      ],
      "ProviderProcessingLevel": "CALIBRATED",
      "InstrumentID": "spase://SMWG/Instrument/Hawkeye/MAG",
      "MeasurementType": "MagneticField",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "1974-06-06T00:00:00",
          "StopDate": "1978-04-28T23:59:59"
        },
        "Cadence": "PT1.9S"
      },
      "ObservedRegion": [
        "Earth.NearSurface.Ionosphere",
        "Earth.Magnetosphere"
      ]
    }
  }
}