{
  "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 http://www.spase-group.org/data/schema/spase-2_2_9.xsd",
    "Version": "2.2.9",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/SAC-C/CSC/MAGF/PT1S",
      "ResourceHeader": {
        "ResourceName": "SAC-C Mag-F: High Precision Magnetic Scalar Data",
        "AlternateName": "Satélite de Aplicaciones Científicas-C Mag-F: Calibrated CSC data",
        "ReleaseDate": "2020-07-07T21:15:17Z",
        "Description": "This dataset contains 1 second measurements of the scalar magnetic field from from the Compact Spherical Coil (CSC) Fluxgate Vector Magnetometer on the SAC-C spacecraft.",
        "Acknowledgement": "Centre National d'Etudes Spatiales (France); National Aeronautics and Space Administration (United States); Danish Space Research Institute (Denmark); National Commission of Space Activities (CONAE) (Argentina); Instituto Nacional de Pesquisas Espaciais, Brazil (Brazil); Agenzia Spaziale Italiana (Italy)",
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/UNKNOWN",
            "Role": "ProjectScientist"
          },
          {
            "PersonID": "spase://SMWG/Person/James.M.Weygand",
            "Role": "MetadataContact"
          }
        ],
        "InformationURL": {
          "Name": "The SAC-C Project",
          "URL": "https://directory.eoportal.org/web/eoportal/satellite-missions/s/sac-c",
          "Description": "Information about the SAC-C Compact Spherical Coil Fluxgate Vector Magnetometer.",
          "Language": "en"
        },
        "PriorID": [
          "spase://VMO/NumericalData/SAC-C/CSC/MAGF/PT1S",
          "spase://VSPO/NumericalData/SAC-C/CSC/MAGF/PT1S"
        ]
      },
      "AccessInformation": {
        "RepositoryID": "spase://SMWG/Repository/SAC-C",
        "Availability": "Online",
        "AccessRights": "Open",
        "AccessURL": {
          "Name": "Virtual Magnetospheric Observatory",
          "URL": "http://vmo.igpp.ucla.edu/data1/SAC-C/",
          "Description": "Compact Spherical Coil Fluxgate Vector Magnetometer MAG-R data."
        },
        "Format": "Text",
        "Acknowledgement": "Dr. Jose J Achache; Dr. Ib Laursen"
      },
      "ProcessingLevel": "Calibrated",
      "ProviderResourceName": "Overhauser Effect Scalar Magnetometer Data",
      "ProviderProcessingLevel": "Calibrated",
      "InstrumentID": "spase://SMWG/Instrument/SAC-C/CSC",
      "MeasurementType": "MagneticField",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "2001-01-23T00:00:00Z",
          "StopDate": "2002-05-04T23:59:59Z",
          "Note": "It is not clear if this mission is still active."
        },
        "Cadence": "PT1S"
      },
      "ObservedRegion": [
        "Earth.NearSurface",
        "Earth.NearSurface.AuroralRegion",
        "Earth.NearSurface.Ionosphere",
        "Earth.NearSurface.PolarCap"
      ],
      "Parameter": [
        {
          "Name": "Universal Time",
          "ParameterKey": "Time",
          "Description": "Universal time columns from left to right are: year-month-day (yyyy-mm-dd) and seconds of the day.",
          "Cadence": "PT1S",
          "Structure": {
            "Size": "2",
            "Description": "Universal Time expressed using a 6-column day, month, year, hour, minute, second representation",
            "Element": [
              {
                "Name": "Year-Month-Day",
                "Index": "1",
                "ParameterKey": "Column_1-Column_2-Column_3"
              },
              {
                "Name": "Second",
                "Index": "2",
                "ParameterKey": "Second"
              }
            ]
          },
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "SAC-C Spacecraft Position Vector in ECEF polar coordinates",
          "ParameterKey": "Position Vectors",
          "Description": "Location of the spacecraft in Earth Centered, Earth Fixed polar coordinates in units of Re and degrees.",
          "Cadence": "PT1S",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Spherical",
            "CoordinateSystemName": "ECEF"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "Radius",
                "Qualifier": "Component.I",
                "Index": "1",
                "ParameterKey": "r",
                "Units": "km"
              },
              {
                "Name": "Theta",
                "Qualifier": "Component.J",
                "Index": "2",
                "ParameterKey": "theta",
                "Units": "degrees"
              },
              {
                "Name": "Phi",
                "Qualifier": "Component.K",
                "Index": "3",
                "ParameterKey": "Phi",
                "Units": "degrees"
              }
            ]
          },
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Information and quality flag relating to position.",
          "ParameterKey": "Qpos",
          "Description": "The bits have the following interpretation (bit 1 is least significant bit - LSB): 0 = poor quality, 1 = Good quality (below 25 m spatial).",
          "Cadence": "PT1S",
          "Units": "unitless",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Magnetic Field Magnitude",
          "ParameterKey": "F",
          "Description": "SAC-C Mag-F Magnitude data.",
          "Cadence": "PT1S",
          "Units": "nT",
          "Field": {
            "Qualifier": "Magnitude",
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "Information and quality flag relating to F (scalar magnetic measurement).",
          "ParameterKey": "Qf",
          "Description": "Information and quality flag relating to F (scalar magnetic measurement). The bits of this CDF_UINT2 has the following interpretation (bit 1 is least significant bit - LSB):\n\n    1.  Frequency calibration: 0 = not applied (poor), 1 = applied (good).\n    2.  Has occasional time shifts: 0 = yes (poor), 1 = no (good).\n    3.  Spacecraft disturbance: 0 = ignored, 1 = compensated.\n    4.  Scalar magnetometer temperature information: 0 = unavailable, 1 = available.\n    5.  Not currently used = 0.\n    6.  Not currently used = 0.\n    7.  Not currently used = 0.\n    8.  Scalar derived from: 0 = Scalar magnetometer, 1 = Vector magnetometer.\n    9.  General vector data quality: 0 = poor, 1 = good.\n    10. Vector magnetometer sample rate: 0 = 25 Hz, 1 = 100 Hz.\n    11. Vector magnetometer temperature information: 0 = unavailable, 1 = available.\n    12. Not currently used = 0.\n    13. Torquer coils: 0 = on, 1 = off.\n    14. Torquer coils disturbance: 0 = >1nT, 1 = <1nT.\n    15. Scalar magnetometer power: 0 = on, 1 = off.\n    16. Not currently used = 0.\n\nIf bit 8 is set to 0 (Scalar magnetometer), one can rely on the bits 1-7. If bit 8 is is set to 1 (Vector magnetometer), one can rely on bits 9-16. Further information may be included in this field.\nExample: QF = 12928 = 011001010000000b: Scalar derived from Vector magnetometer, scalar magnetometer on, torquer coils off (=>no disturbance), poor attitude, vector magnetometer temperature information unavailable, 100 Hz poor quality CSC data.\nExample: To quickly identify Ovh samples (bit 8) do: if QF/28-1 is even then from Ovh.",
          "Cadence": "PT1S",
          "Units": "unitless",
          "Support": {
            "SupportQuantity": "Other"
          }
        }
      ]
    }
  }
}