{
  "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/TWINS2/Ephemeris/PT1M45S",
      "NamingAuthority": "NASA",
      "ResourceType": "NumericalData",
      "ResourceHeader": {
        "ResourceName": "TWINS 2 - Spacecraft Ephemeris",
        "ReleaseDate": "2025-12-04T13:32:08Z",
        "RevisionHistory": {
          "RevisionEvent": [
            {
              "ReleaseDate": "2021-04-27T15:38:11",
              "Note": "Only known prior ReleaseDate of the metadata"
            },
            {
              "ReleaseDate": "2025-10-22T12:34:56.789",
              "Note": "Revised ObservedRegion. JMW"
            },
            {
              "ReleaseDate": "2025-11-14T16:02:56Z",
              "Note": "Added PublicationInfo. 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": "2025-12-04T13:32:08Z",
              "Note": "Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB"
            }
          ]
        },
        "Description": "Definitive orbit data",
        "PublicationInfo": {
          "Authors": "McComas, David J.",
          "PublicationDate": "2025-11-14T16:02:56Z",
          "PublishedBy": "Space Physics Data Facility"
        },
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/David.J.McComas",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/Jan.Merka",
            "Role": "MetadataContact"
          }
        ],
        "InformationURL": {
          "Name": "TWINS Home Page",
          "URL": "https://earth.esa.int/web/eoportal/satellite-missions/t/twins",
          "Description": "?"
        },
        "PriorID": [
          "spase://VMO/NumericalData/TWINS2/Ephemeris/PT1M45S",
          "spase://VSPO/NumericalData/TWINS2/Ephemeris/PT1M45S"
        ]
      },
      "AccessInformation": [
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb",
          "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/twins/twins2/ephemeris/or/",
              "Description": "NASA/GSFC CDAWeb ftp access to the data."
            },
            {
              "Name": "HTTPS from SPDF",
              "URL": "https://spdf.gsfc.nasa.gov/pub/data/twins/twins2/ephemeris/or/",
              "Description": "In CDF via HTTP from CDAWeb"
            }
          ],
          "Format": "CDF",
          "Encoding": "None"
        },
        {
          "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=TWINS2_OR_DEF&index=sp_phys",
              "ProductKey": "TWINS2_OR_DEF",
              "Description": "TWINS 2 spacecraft ephemeris data with subset, plot, list functionalities \nfrom CDAWeb"
            },
            {
              "Name": "SSCWeb",
              "URL": "https://sscweb.gsfc.nasa.gov/cgi-bin/Locator.cgi",
              "ProductKey": "twins2"
            }
          ],
          "Format": "Text",
          "Acknowledgement": "Please acknowledge the CDAWeb team at GSFC/SPDF."
        },
        {
          "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": "TWINS2_OR_DEF",
            "Description": "Web Service to this product using the HAPI interface."
          },
          "Format": "CSV",
          "Acknowledgement": "Please acknowledge the CDAWeb team at GSFC/SPDF."
        }
      ],
      "InstrumentID": "spase://SMWG/Instrument/TWINS2/Ephemeris",
      "MeasurementType": "Ephemeris",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "2001-04-11T00:03:22.394Z",
          "StopDate": "2016-12-31T23:59:59.999Z"
        },
        "Cadence": "PT1M45S"
      },
      "ObservedRegion": [
        "Earth.Magnetosphere.RadiationBelt",
        "Earth.Magnetosphere",
        "Earth.Magnetosheath",
        "Earth.Magnetosphere.Magnetotail",
        "Earth.Magnetosphere.Main"
      ],
      "Parameter": [
        {
          "Name": "Epoch",
          "ParameterKey": "Epoch",
          "Description": "Epoch",
          "FillValue": "31-Dec-9999 23:59:59.999",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Start Time MJD",
          "ParameterKey": "ISTARTTIMEMJD",
          "Description": "Start Time MJD - time key of data point",
          "Units": "days",
          "FillValue": "-1.0E31",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "S/C ECI XYZ",
          "ParameterKey": "FSCECI",
          "Description": "The spacecraft location in ECI coordinates (cartesian XYZ components).",
          "Units": "km",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GEI"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "FSCECI X",
                "Qualifier": "Component.I",
                "Index": "1"
              },
              {
                "Name": "FSCECI Y",
                "Qualifier": "Component.J",
                "Index": "2"
              },
              {
                "Name": "FSCECI Z",
                "Qualifier": "Component.K",
                "Index": "3"
              }
            ]
          },
          "ValidMin": "-63800.0",
          "ValidMax": "63800.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "Vector",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "S/C GEO XYZ",
          "ParameterKey": "FSCGEO",
          "Description": "The spacecraft location in geographic coordinates (cartesian XYZ components).",
          "Units": "km",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GEO"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "FSCGEO X",
                "Qualifier": "Component.I",
                "Index": "1"
              },
              {
                "Name": "FSCGEO Y",
                "Qualifier": "Component.J",
                "Index": "2"
              },
              {
                "Name": "FSCGEO Z",
                "Qualifier": "Component.K",
                "Index": "3"
              }
            ]
          },
          "ValidMin": "-63800.0",
          "ValidMax": "63800.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "Vector",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "S/C GSM XYZ",
          "ParameterKey": "FSCGSM",
          "Description": "The spacecraft location in GSM coordinates (cartesian XYZ components).",
          "Units": "km",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSM"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "FSCGSM X",
                "Qualifier": "Component.I",
                "Index": "1"
              },
              {
                "Name": "FSCGSM Y",
                "Qualifier": "Component.J",
                "Index": "2"
              },
              {
                "Name": "FSCGSM Z",
                "Qualifier": "Component.K",
                "Index": "3"
              }
            ]
          },
          "ValidMin": "-63800.0",
          "ValidMax": "63800.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "Vector",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "S/C ECD XYZ",
          "ParameterKey": "FSCECD",
          "Description": "Spacecraft Eccentric Dipole Cartesian Coordinate XYZ",
          "Caveats": "The spacecraft location in eccentric dipole coordinates (cartesian XYZ components).",
          "Units": "km",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "ECD"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "FSCECD X",
                "Qualifier": "Component.I",
                "Index": "1"
              },
              {
                "Name": "FSCECD Y",
                "Qualifier": "Component.J",
                "Index": "2"
              },
              {
                "Name": "FSCECD Z",
                "Qualifier": "Component.K",
                "Index": "3"
              }
            ]
          },
          "ValidMin": "-63800.0",
          "ValidMax": "63800.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "Vector",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "S/C GEO Long",
          "ParameterKey": "FSCLONGGEO",
          "Description": "Spacecraft longitude (east longitude) in geographic coordinates.",
          "Units": "deg",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Spherical",
            "CoordinateSystemName": "GEO"
          },
          "ValidMin": "0.0",
          "ValidMax": "360.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "DirectionAngle.AzimuthAngle",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "S/C GEO Lat",
          "ParameterKey": "FSCLATGEO",
          "Description": "Spacecraft latitude in geographic coordinates.",
          "Units": "deg",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Spherical",
            "CoordinateSystemName": "GEO"
          },
          "ValidMin": "-90.0",
          "ValidMax": "90.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "DirectionAngle.ElevationAngle",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "S/C Radial Dist",
          "ParameterKey": "FSCRADIALDIST",
          "Description": "Spacecraft radial distance (km) from the center of the Earth.",
          "Units": "km",
          "ValidMin": "6380.0",
          "ValidMax": "63800.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "Magnitude",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "S/C Radial Alt",
          "ParameterKey": "FSCRADIALALT",
          "Description": "Spacecraft radial altitude (km) based on an oblate spheroid Earth model (WGS84).",
          "Units": "km",
          "ValidMin": "0.0",
          "ValidMax": "57420.0",
          "FillValue": "-1.0E31",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Sun ECI XYZ",
          "ParameterKey": "FSUNECI",
          "Description": "The location of the Sun in ECI coordinates (cartesian XYZ components).",
          "Units": "km",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GEI"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "FSUNECI X",
                "Qualifier": "Component.I",
                "Index": "1"
              },
              {
                "Name": "FSUNECI Y",
                "Qualifier": "Component.J",
                "Index": "2"
              },
              {
                "Name": "FSUNECI Z",
                "Qualifier": "Component.K",
                "Index": "3"
              }
            ]
          },
          "ValidMin": "-1.5E8",
          "ValidMax": "1.5E8",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "Vector",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "B ECI XYZ",
          "ParameterKey": "FBECI",
          "Description": "The magnetic field vector in ECI coordinates (cartesian XYZ components).",
          "Units": "nT",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GEI"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "FBECI X",
                "Qualifier": "Component.I",
                "Index": "1"
              },
              {
                "Name": "FBECI Y",
                "Qualifier": "Component.J",
                "Index": "2"
              },
              {
                "Name": "FBECI Z",
                "Qualifier": "Component.K",
                "Index": "3"
              }
            ]
          },
          "ValidMin": "-32000.0",
          "ValidMax": "32000.0",
          "FillValue": "-1.0E31",
          "Field": {
            "Qualifier": "Vector",
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "B Mirror",
          "ParameterKey": "FBMIRROR",
          "Description": "The magnetic field magnitude at the spacecraft mirror point based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "nT",
          "ValidMin": "0.0",
          "ValidMax": "32000.0",
          "FillValue": "-1.0E31",
          "Field": {
            "Qualifier": "Magnitude",
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "B Equatorial",
          "ParameterKey": "FBEQUATORIAL",
          "Description": "The magnetic field magnitude at the field-line minimum point based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "nT",
          "ValidMin": "0.0",
          "ValidMax": "32000.0",
          "FillValue": "-1.0E31",
          "Field": {
            "Qualifier": "Magnitude",
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "B North 100km",
          "ParameterKey": "FBNORTH100KM",
          "Description": "The magnetic field magnitude at the North 100 km point based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "nT",
          "ValidMin": "0.0",
          "ValidMax": "100000.0",
          "FillValue": "-1.0E31",
          "Field": {
            "Qualifier": "Magnitude",
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "B South 100km",
          "ParameterKey": "FBSOUTH100KM",
          "Description": "The magnetic field magnitude at the South 100 km point based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "nT",
          "ValidMin": "0.0",
          "ValidMax": "100000.0",
          "FillValue": "-1.0E31",
          "Field": {
            "Qualifier": "Magnitude",
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "Mirror GSM XYZ",
          "ParameterKey": "FMIRRORGSM",
          "Description": "The spacecraft mirror point location in GSM coordinates (cartesian XYZ components) based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "km",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSM"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "FMIRRORGSM X",
                "Qualifier": "Component.I",
                "Index": "1"
              },
              {
                "Name": "FMIRRORGSM Y",
                "Qualifier": "Component.J",
                "Index": "2"
              },
              {
                "Name": "FMIRRORGSM Z",
                "Qualifier": "Component.K",
                "Index": "3"
              }
            ]
          },
          "ValidMin": "-63800.0",
          "ValidMax": "63800.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "Vector",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Equatorial GSM XYZ",
          "ParameterKey": "FEQUATORIALGSM",
          "Description": "The Equatorial Point location in GSM coordinates (cartesian XYZ components) based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "km",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSM"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "FEQUATORIALGSM X",
                "Qualifier": "Component.I",
                "Index": "1"
              },
              {
                "Name": "FEQUATORIALGSM Y",
                "Qualifier": "Component.J",
                "Index": "2"
              },
              {
                "Name": "FEQUATORIALGSM Z",
                "Qualifier": "Component.K",
                "Index": "3"
              }
            ]
          },
          "ValidMin": "-200000.0",
          "ValidMax": "250000.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "Vector",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "North 100km GSM XYZ",
          "ParameterKey": "FNORTH100KMGSM",
          "Description": "The location of the North 100 km point in GSM coordinates (cartesian XYZ components) based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "km",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSM"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "FNORTH100KMGSM X",
                "Qualifier": "Component.I",
                "Index": "1"
              },
              {
                "Name": "FNORTH100KMGSM Y",
                "Qualifier": "Component.J",
                "Index": "2"
              },
              {
                "Name": "FNORTH100KMGSM Z",
                "Qualifier": "Component.K",
                "Index": "3"
              }
            ]
          },
          "ValidMin": "-7000.0",
          "ValidMax": "7000.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "Vector",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "South 100km GSM XYZ",
          "ParameterKey": "FSOUTH100KMGSM",
          "Description": "The location of the South 100 km point in GSM coordinates (cartesian XYZ components) based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "km",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSM"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "FSOUTH100KMGSM X",
                "Qualifier": "Component.I",
                "Index": "1"
              },
              {
                "Name": "FSOUTH100KMGSM Y",
                "Qualifier": "Component.J",
                "Index": "2"
              },
              {
                "Name": "FSOUTH100KMGSM Z",
                "Qualifier": "Component.K",
                "Index": "3"
              }
            ]
          },
          "ValidMin": "-7000.0",
          "ValidMax": "7000.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "Vector",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "L Shell",
          "ParameterKey": "FLSHELL",
          "Description": "The dimensionless McIlwain L-Shell Parameter based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "ValidMin": "0.0",
          "ValidMax": "50.0",
          "FillValue": "-1.0E31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Inv Lat",
          "ParameterKey": "FINVLAT",
          "Description": "Spacecraft invariant magnetic latitude based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "deg",
          "ValidMin": "0.0",
          "ValidMax": "90.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "DirectionAngle.ElevationAngle",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Dipole Radius",
          "ParameterKey": "FDIPOLERADIUS",
          "Description": "Dipole magnetic radial distance based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "km",
          "ValidMin": "6380.0",
          "ValidMax": "127600.0",
          "FillValue": "-1.0E31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Dipole Lat",
          "ParameterKey": "FDIPOLELAT",
          "Description": "Dipole magnetic latitude based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "deg",
          "ValidMin": "-90.0",
          "ValidMax": "90.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "DirectionAngle.ElevationAngle",
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "S/C ECD Lat",
          "ParameterKey": "FSCLATECD",
          "Description": "Spacecraft latitude in the eccentric dipole frame based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "deg",
          "ValidMin": "-90.0",
          "ValidMax": "90.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "DirectionAngle.ElevationAngle",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "LT GEO",
          "ParameterKey": "FLTGEO",
          "Description": "Magnetic local time in the geographic coordinates frame.",
          "Units": "hr",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Spherical",
            "CoordinateSystemName": "GEO"
          },
          "ValidMin": "0.0",
          "ValidMax": "24.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "DirectionAngle.AzimuthAngle",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "LT ECD",
          "ParameterKey": "FLTECD",
          "Description": "Magnetic local time in the eccentric dipole (ECD) frame based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "hr",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Spherical",
            "CoordinateSystemName": "ECD"
          },
          "ValidMin": "0.0",
          "ValidMax": "24.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "DirectionAngle.AzimuthAngle",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "LT Equatorial",
          "ParameterKey": "FLTEQU",
          "Description": "Equatorial mapped magnetic local time in the eccentric dipole (ECD) frame based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "hr",
          "ValidMin": "0.0",
          "ValidMax": "24.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "DirectionAngle.AzimuthAngle",
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Solar Zenith",
          "ParameterKey": "FSOLARZENITHCOS",
          "Description": "Solar zenith angle cosine.",
          "Units": "deg",
          "ValidMin": "-1.0",
          "ValidMax": "1.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "DirectionAngle.ElevationAngle",
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Loss Cone",
          "ParameterKey": "FLOSSCONE",
          "Description": "Particle loss cone angle based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "deg",
          "ValidMin": "0.0",
          "ValidMax": "90.0",
          "FillValue": "-1.0E31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Dipole Tilt",
          "ParameterKey": "FDIPOLETILT",
          "Description": "Magnetic dipole tilt angle based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "deg",
          "ValidMin": "0.0",
          "ValidMax": "90.0",
          "FillValue": "-1.0E31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Dipole Offset XYZ",
          "ParameterKey": "FDIPOLEOFFSET",
          "Description": "Magnetic dipole displacement (XYZ components) based on the International Geomagnetic Reference Field (IGRF) 2005.0 adjusted for the relevant date by means of the IGRF secular variation coefficients.",
          "Units": "km",
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "FDIPOLEOFFSET X",
                "Qualifier": "Component.I",
                "Index": "1"
              },
              {
                "Name": "FDIPOLEOFFSET Y",
                "Qualifier": "Component.J",
                "Index": "2"
              },
              {
                "Name": "FDIPOLEOFFSET Z",
                "Qualifier": "Component.K",
                "Index": "3"
              }
            ]
          },
          "ValidMin": "-1000.0",
          "ValidMax": "1000.0",
          "FillValue": "-1.0E31",
          "Support": {
            "Qualifier": "Vector",
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "DataFile ID",
          "ParameterKey": "NDATAFILEID",
          "Description": "TWINS DataFile ID",
          "Caveats": "DataFile ID as used in TWINS database storage",
          "ValidMin": "0.0",
          "ValidMax": "3.23786E-319",
          "FillValue": "-1.0E31",
          "Support": {
            "SupportQuantity": "Other"
          }
        }
      ]
    }
  }
}