{
  "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_3_0.xsd'",
    "Version": "2.3.0",
    "NumericalData": {
      "ResourceID": "spase://JAXA/NumericalData/Geotail/MGF/PT64S",
      "ResourceHeader": {
        "ResourceName": "Geotail KP Magnetic Field Data (64s)",
        "ReleaseDate": "2021-04-27T17:52:35Z",
        "Description": "This data set contains the investigator-selected Key Parameters from the Magnetic Field instrument (MGF) on Geotail, as made available via NSSDC's interactive WWW interface CDAWeb.\n\n            Selected references:\n\n            Kokubun, S., et al., Magnetic field measurement (MGF), In Geotail Prelaunch Report, SES-TD-92-007SY, Institute of Space and Astronautical Science, SES Data Center, pp. 58-70, Apr. 1992.\n\n            Nishida, A., et al., Geotail mission to explore earth's magnetotail, EOS, 73, No. 40, Oct. 1992.\n\n            Kokubun, S., et al., The GEOTAIL Magnetic Field Experiment, J. Geomag. Geoelectr., 46, No. 1, 7-21, 1994.",
        "Acknowledgement": "Data were provided by T. Nagai at Institute of Space and Astronautical Science, JAXA in Japan.",
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Tsugunobu.Nagai",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/Donald.H.Fairfield",
            "Role": "Scientist"
          },
          {
            "PersonID": "spase://SMWG/Person/Jan.Merka",
            "Role": "MetadataContact"
          }
        ],
        "InformationURL": [
          {
            "Name": "The Geotail Magnetic Field Experiment (MGF)",
            "URL": "https://www.darts.isas.ac.jp/stp/geotail/jgg_mgf.pdf",
            "Description": "Reprint of Kokubun, S., T. Yamamoto, M. H. Acuna, K. Hayashi, K. Shiokawa, and H. Kawano, The Geotail Magnetic Field Experiment, J. Geomag. Geoelectr., 46, 7-21, 1994."
          },
          {
            "Name": "Key Parameters GE_K0_MGF from the Geotail Magnetic Field Instrument (MGF) in CDF",
            "URL": "https://nssdc.gsfc.nasa.gov/nmc/dataset/display.action?id=SPHE-00568"
          }
        ],
        "PriorID": [
          "spase://VMO/NumericalData/Geotail/MGF/PT64S",
          "spase://VSPO/NumericalData/Geotail/MGF/PT64S"
        ]
      },
      "AccessInformation": [
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb",
          "Availability": "Online",
          "AccessRights": "Open",
          "AccessURL": [
            {
              "Name": "FTPS from SPDF (not with most browsers)",
              "URL": "ftps://spdf.gsfc.nasa.gov/pub/data/geotail/mgf/mgf_k0/"
            },
            {
              "Name": "HTTPS from SPDF",
              "URL": "https://spdf.gsfc.nasa.gov/pub/data/geotail/mgf/mgf_k0/",
              "Description": "In CDF via HTTP from SPDF"
            },
            {
              "Name": "CDAWeb",
              "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=GE_K0_MGF&index=sp_phys",
              "ProductKey": "GE_K0_MGF"
            }
          ],
          "Format": "CDF",
          "Encoding": "None"
        },
        {
          "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": "GE_K0_MGF",
            "Description": "Web Service to this product using the HAPI interface."
          },
          "Format": "CSV"
        }
      ],
      "InstrumentID": "spase://SMWG/Instrument/Geotail/MGF",
      "MeasurementType": "MagneticField",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "1992-09-04T19:14:06",
          "RelativeStopDate": "-P0D"
        },
        "Cadence": "PT64S"
      },
      "ObservedRegion": [
        "Heliosphere.NearEarth",
        "Earth.Magnetosheath",
        "Earth.Magnetosphere",
        "Earth.Magnetosphere.Magnetotail"
      ],
      "Caveats": "Switched from outer magnetometer to inner in January 2007.  This data is computed with a preliminary algorithm and is not necessarily complete nor is it certified by the experimenters or considered publishable.",
      "Parameter": [
        {
          "Name": "Time",
          "ParameterKey": "Epoch",
          "Description": "Time in miliseconds since CDF epoch",
          "Units": "ms",
          "UnitsConversion": "1e-3>s",
          "ValidMin": "01-Aug-1992 00:00:00.000",
          "ValidMax": "31-Dec-2000 23:59:59.000",
          "FillValue": "-1.0E31",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Time",
          "ParameterKey": "Time_PB5",
          "Description": "Time as an array (year, day of year and elapsed milliseconds of day).",
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "Year",
                "Index": "1",
                "Units": "year",
                "ValidMin": "1992",
                "ValidMax": "2020",
                "FillValue": "-2147483648"
              },
              {
                "Name": "Day of Year (jan 1 = day 1)",
                "Index": "2",
                "Units": "day",
                "ValidMin": "1",
                "ValidMax": "366",
                "FillValue": "-2147483648"
              },
              {
                "Name": "Elapsed ms of day",
                "Index": "3",
                "Units": "ms",
                "ValidMin": "0",
                "ValidMax": "86399000",
                "FillValue": "-2147483648"
              }
            ]
          },
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Time of day",
          "ParameterKey": "MSEC",
          "Description": "Elapsed milliseconds of day",
          "Units": "ms",
          "ValidMin": "0",
          "ValidMax": "86400000",
          "FillValue": "-2147483648",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Magnetic Field Intensity",
          "ParameterKey": "IB",
          "Description": "Observed magnetic field intensity",
          "Units": "0.1nT",
          "UnitsConversion": "1e-10>T",
          "ValidMin": "-32768",
          "ValidMax": "32767",
          "FillValue": "-32768",
          "Field": {
            "Qualifier": [
              "Average",
              "Magnitude"
            ],
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "Magnetic Field (GSE)",
          "ParameterKey": "IB_vector",
          "Description": "Observed magnetic field vector in GSE coordinates",
          "Units": "0.1nT",
          "UnitsConversion": "1e-10>T",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "Bx",
                "Qualifier": "Component.I",
                "Index": "1",
                "ValidMin": "-32768",
                "ValidMax": "32767",
                "FillValue": "-32768"
              },
              {
                "Name": "By",
                "Qualifier": "Component.J",
                "Index": "2",
                "ValidMin": "-32768",
                "ValidMax": "32767",
                "FillValue": "-32768"
              },
              {
                "Name": "Bz",
                "Qualifier": "Component.K",
                "Index": "3",
                "ValidMin": "-32768",
                "ValidMax": "32767",
                "FillValue": "-32768"
              }
            ]
          },
          "Field": {
            "Qualifier": [
              "Average",
              "Vector"
            ],
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "B RMS (sensor coord)",
          "ParameterKey": "IS_vector",
          "Description": "Standard deviation of sin fitting for magnetic field in sensor coordinates",
          "Units": "0.01nT",
          "UnitsConversion": "1e-11>T",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "SC"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "Bx-RMS",
                "Qualifier": "Component.I",
                "Index": "1",
                "ValidMin": "-32768",
                "ValidMax": "32767",
                "FillValue": "-32768"
              },
              {
                "Name": "By-RMS",
                "Qualifier": "Component.J",
                "Index": "2",
                "ValidMin": "-32768",
                "ValidMax": "32767",
                "FillValue": "-32768"
              },
              {
                "Name": "Bz-RMS",
                "Qualifier": "Component.K",
                "Index": "3",
                "ValidMin": "-32768",
                "ValidMax": "32767",
                "FillValue": "-32768"
              }
            ]
          },
          "Field": {
            "Qualifier": [
              "StandardDeviation",
              "Vector"
            ],
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "MGF Range",
          "ParameterKey": "RANGE_STATUS",
          "Description": "Range status of the fluxgate magnetometer.\n\n            * 0 = Not valid\n            * 1 = +/-    16 nT\n            * 2 = +/-    64 nT\n            * 3 = +/-   256 nT\n            * 4 = +/-  1024 nT\n            * 5 = +/-  4096 nT\n            * 6 = +/- 16384 nT\n            * 7 = +/- 65536 nT",
          "ValidMin": "1",
          "ValidMax": "7",
          "FillValue": "-32768",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Satellite Position (GSE)",
          "ParameterKey": "POS",
          "Description": "Satellite position vector in GSE coordinates",
          "Units": "km",
          "UnitsConversion": "1e3>m",
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "X-GSE",
                "Qualifier": "Component.I",
                "Index": "1",
                "ValidMin": "-1800000.0",
                "ValidMax": "1800000.0",
                "FillValue": "-1.0E31"
              },
              {
                "Name": "Y-GSE",
                "Qualifier": "Component.J",
                "Index": "2",
                "ValidMin": "-1800000.0",
                "ValidMax": "1800000.0",
                "FillValue": "-1.0E31"
              },
              {
                "Name": "Z-GSE",
                "Qualifier": "Component.K",
                "Index": "3",
                "ValidMin": "-1800000.0",
                "ValidMax": "1800000.0",
                "FillValue": "-1.0E31"
              }
            ]
          },
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Data Quality Flag",
          "ParameterKey": "DQF",
          "Description": "Data quality flag: Good/Bad/Fill (0: good; 1,2,3: poor 4: fill value)",
          "ValidMin": "0",
          "ValidMax": "4",
          "FillValue": "-2147483648",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Post Gap Flag",
          "ParameterKey": "Gap_Flag",
          "Description": "Post gap flag.\n\n             * 0: no gap occurred;\n             * 1: gap occurred because SIRIUS data were illegal or because the instrument was not in a mode that allowed KP's\n             * 2: gap occurred because of the jump of MGF RANGE or MGF SENSE during 64 s",
          "ValidMin": "0",
          "ValidMax": "2",
          "FillValue": "-2147483648",
          "Support": {
            "SupportQuantity": "Other"
          }
        }
      ]
    }
  }
}