{
  "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://ESA/NumericalData/Cluster/Ephemeris/SummaryParameter/PT60S",
      "ResourceHeader": {
        "ResourceName": "Cluster Auxiliary Data",
        "ReleaseDate": "2021-03-29T17:14:50Z",
        "Description": "Cluster Auxiliary Parameters are produced by the Cluster Hungarian Data Center in Budapest.  These data are the primary orbit product supplied to users by the Cluster Active Archive.  The data contain Position, Velocity and Attitude of four Cluster spacecraft.\n\n            For additional details on the methodology behind these data see:\n\n            Robert P., et al., \"Tetrahedron Geometric Factors\", p. 328, Analysis Methods of Multi-Spacecraft Data, ed. G. Paschmann and P. Daly, 1998, ESA and the International Space Institute, Bern.",
        "Contact": {
          "PersonID": "spase://SMWG/Person/M.Tatrallyay",
          "Role": "DataProducer"
        },
        "PriorID": [
          "spase://VMO/NumericalData/Cluster2/Ephemeris/PT1M",
          "spase://VMO/NumericalData/Cluster2/Ephemeris/SummaryParameter/PT1M",
          "spase://VMO/NumericalData/Cluster/Ephemeris/SummaryParameter/PT1M",
          "spase://VSPO/NumericalData/Cluster/Ephemeris/SummaryParameter/PT60S"
        ]
      },
      "AccessInformation": {
        "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb",
        "AccessURL": [
          {
            "Name": "FTPS from SPDF (not with most browsers)",
            "URL": "ftps://spdf.gsfc.nasa.gov/pub/data/cluster/cl/sp/aux/"
          },
          {
            "Name": "HTTPS from SPDF",
            "URL": "https://spdf.gsfc.nasa.gov/pub/data/cluster/cl/sp/aux/",
            "Description": "In CDF via HTTP from SPDF"
          },
          {
            "Name": "CDAWeb",
            "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=CL_SP_AUX&index=sp_phys",
            "ProductKey": "CL_SP_AUX"
          }
        ],
        "Format": "CDF"
      },
      "InstrumentID": [
        "spase://SMWG/Instrument/Cluster-Rumba/Ephemeris",
        "spase://SMWG/Instrument/Cluster-Salsa/Ephemeris",
        "spase://SMWG/Instrument/Cluster-Samba/Ephemeris",
        "spase://SMWG/Instrument/Cluster-Tango/Ephemeris"
      ],
      "MeasurementType": "Ephemeris",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "2000-08-22T00:00:30",
          "RelativeStopDate": "-P3M"
        },
        "Cadence": "PT1M"
      },
      "ObservedRegion": [
        "Earth.Magnetosheath",
        "Earth.Magnetosphere",
        "Earth.Magnetosphere.Magnetotail",
        "Earth.Magnetosphere.Main",
        "Earth.Magnetosphere.Polar",
        "Earth.Magnetosphere.RadiationBelt",
        "Earth.NearSurface.AuroralRegion",
        "Earth.NearSurface.Ionosphere",
        "Earth.NearSurface.Plasmasphere",
        "Earth.NearSurface.PolarCap",
        "Heliosphere.NearEarth"
      ],
      "Parameter": [
        {
          "Name": "Epoch",
          "ParameterKey": "Epoch__CL_SP_AUX",
          "Description": "Interval centered time tag rounded to the nearest millisecond",
          "Units": "ms",
          "UnitsConversion": "1.0e-3>s",
          "ValidMin": "6.2924602e13",
          "ValidMax": "6.34295223e13",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Spacecraft Status",
          "ParameterKey": "sc_status__CL_SP_AUX",
          "Description": "Spacecraft Status, 0 = Bad Value, 1 = Use with caution, 2 = OK, 255 = Not Supplied",
          "Cadence": "PT1M",
          "Structure": {
            "Size": "5"
          },
          "ValidMin": "0",
          "ValidMax": "255",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Spacecraft Orbit Number",
          "ParameterKey": "sc_orbit_num__CL_SP_AUX",
          "Description": "Spacecraft orbit number including phase. Values are of the form orbit.phase",
          "Cadence": "PT1M",
          "ValidMin": "0",
          "ValidMax": "1000",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Reference Spacecraft Position GSE",
          "ParameterKey": "sc_r_xyz_gse__CL_SP_AUX",
          "Description": "Position, in GSE, of the Reference Spacecraft. Cluster 3 is used as the reference spacecraft",
          "Cadence": "PT1M",
          "Units": "km",
          "UnitsConversion": "1.0e3>m",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "GSE X",
                "Index": "0",
                "ValidMin": "-140000",
                "ValidMax": "140000"
              },
              {
                "Name": "GSE Y",
                "Index": "1",
                "ValidMin": "-140000",
                "ValidMax": "140000"
              },
              {
                "Name": "GSE Z",
                "Index": "2",
                "ValidMin": "-140000",
                "ValidMax": "140000"
              }
            ]
          },
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Reference Spacecraft Velocity GSE",
          "ParameterKey": "sc_v_xyz_gse__CL_SP_AUX",
          "Description": "Velocity, in GSE, of the Reference Spacecraft. Cluster 3 is used as the reference spacecraft",
          "Cadence": "PT1M",
          "Units": "km/s",
          "UnitsConversion": "1.0e3>m s^-1",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "GSE X",
                "Index": "0",
                "ValidMin": "-10",
                "ValidMax": "10"
              },
              {
                "Name": "GSE Y",
                "Index": "1",
                "ValidMin": "-10",
                "ValidMax": "10"
              },
              {
                "Name": "GSE Z",
                "Index": "2",
                "ValidMin": "-10",
                "ValidMax": "10"
              }
            ]
          },
          "Support": {
            "SupportQuantity": "Velocity"
          }
        },
        {
          "Name": "Spacecraft 1 Position Relative to Reference Spacecraft",
          "ParameterKey": "sc_dr1_xyz_gse__CL_SP_AUX",
          "Description": "Offset, in GSE, of Spacecraft 1 from the reference spacecraft. Cluster 3 is used as the reference spacecraft",
          "Cadence": "PT1M",
          "Units": "km",
          "UnitsConversion": "1.0e3>m",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "GSE X",
                "Index": "0",
                "ValidMin": "-100000",
                "ValidMax": "100000"
              },
              {
                "Name": "GSE Y",
                "Index": "1",
                "ValidMin": "-100000",
                "ValidMax": "100000"
              },
              {
                "Name": "GSE Z",
                "Index": "2",
                "ValidMin": "-100000",
                "ValidMax": "100000"
              }
            ]
          },
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft 2 Position Relative to Reference Spacecraft",
          "ParameterKey": "sc_dr2_xyz_gse__CL_SP_AUX",
          "Description": "Offset, in GSE, of Spacecraft 2 from the reference spacecraft. Cluster 3 is used as the reference spacecraft",
          "Cadence": "PT1M",
          "Units": "km",
          "UnitsConversion": "1.0e3>m",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "GSE X",
                "Index": "0",
                "ValidMin": "-100000",
                "ValidMax": "100000"
              },
              {
                "Name": "GSE Y",
                "Index": "1",
                "ValidMin": "-100000",
                "ValidMax": "100000"
              },
              {
                "Name": "GSE Z",
                "Index": "2",
                "ValidMin": "-100000",
                "ValidMax": "100000"
              }
            ]
          },
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft 3 Position Relative to Reference Spacecraft",
          "ParameterKey": "sc_dr3_xyz_gse__CL_SP_AUX",
          "Description": "Offset, in GSE, of Spacecraft 3 from the reference spacecraft. Cluster 3 is used as the reference spacecraft",
          "Cadence": "PT1M",
          "Units": "km",
          "UnitsConversion": "1.0e3>m",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "GSE X",
                "Index": "0",
                "ValidMin": "-100000",
                "ValidMax": "100000"
              },
              {
                "Name": "GSE Y",
                "Index": "1",
                "ValidMin": "-100000",
                "ValidMax": "100000"
              },
              {
                "Name": "GSE Z",
                "Index": "2",
                "ValidMin": "-100000",
                "ValidMax": "100000"
              }
            ]
          },
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft 4 Position Relative to Reference Spacecraft",
          "ParameterKey": "sc_dr4_xyz_gse__CL_SP_AUX",
          "Description": "Offset, in GSE, of Spacecraft 4 from the reference spacecraft. Cluster 3 is used as the reference spacecraft",
          "Cadence": "PT1M",
          "Units": "km",
          "UnitsConversion": "1.0e3>m",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "GSE X",
                "Index": "0",
                "ValidMin": "-100000",
                "ValidMax": "100000"
              },
              {
                "Name": "GSE Y",
                "Index": "1",
                "ValidMin": "-100000",
                "ValidMax": "100000"
              },
              {
                "Name": "GSE Z",
                "Index": "2",
                "ValidMin": "-100000",
                "ValidMax": "100000"
              }
            ]
          },
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft 1 Axis Latitude GSE",
          "ParameterKey": "sc_at1_lat__CL_SP_AUX",
          "Description": "GSE latitude of spacecraft 1 axis, angle from Ecliptic Plane",
          "Cadence": "PT1M",
          "Units": "degrees",
          "UnitsConversion": "1.0>degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "ValidMin": "-90",
          "ValidMax": "90",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft 1 Axis Longitude GSE",
          "ParameterKey": "sc_at1_long__CL_SP_AUX",
          "Description": "GSE longitude of spacecraft 1 axis, angle from x in x-y GSE plane",
          "Cadence": "PT1M",
          "Units": "degrees",
          "UnitsConversion": "1.0>degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "ValidMin": "0",
          "ValidMax": "360",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft 2 Axis Latitude GSE",
          "ParameterKey": "sc_at2_lat__CL_SP_AUX",
          "Description": "GSE latitude of spacecraft 2 axis, angle from Ecliptic Plane",
          "Cadence": "PT1M",
          "Units": "degrees",
          "UnitsConversion": "1.0>degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "ValidMin": "-90",
          "ValidMax": "90",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft 2 Axis Longitude GSE",
          "ParameterKey": "sc_at2_long__CL_SP_AUX",
          "Description": "GSE longitude of spacecraft 2 axis, angle from x in x-y GSE plane",
          "Cadence": "PT1M",
          "Units": "degrees",
          "UnitsConversion": "1.0>degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "ValidMin": "0",
          "ValidMax": "360",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft 3 Axis Latitude GSE",
          "ParameterKey": "sc_at3_lat__CL_SP_AUX",
          "Description": "GSE latitude of spacecraft 3 axis, angle from Ecliptic Plane",
          "Cadence": "PT1M",
          "Units": "degrees",
          "UnitsConversion": "1.0>degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "ValidMin": "-90",
          "ValidMax": "90",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft 3 Axis Longitude GSE",
          "ParameterKey": "sc_at3_long__CL_SP_AUX",
          "Description": "GSE longitude of spacecraft 3 axis, angle from x in x-y GSE plane",
          "Cadence": "PT1M",
          "Units": "degrees",
          "UnitsConversion": "1.0>degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "ValidMin": "0",
          "ValidMax": "360",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft 4 Axis Latitude GSE",
          "ParameterKey": "sc_at4_lat__CL_SP_AUX",
          "Description": "GSE latitude of spacecraft 4 axis, angle from Ecliptic Plane",
          "Cadence": "PT1M",
          "Units": "degrees",
          "UnitsConversion": "1.0>degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "ValidMin": "-90",
          "ValidMax": "90",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft 4 Axis Longitude GSE",
          "ParameterKey": "sc_at4_long__CL_SP_AUX",
          "Description": "GSE longitude of spacecraft 4 axis, angle from x in x-y GSE plane",
          "Cadence": "PT1M",
          "Units": "degrees",
          "UnitsConversion": "1.0>degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "ValidMin": "0",
          "ValidMax": "360",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Tetrahedron Quality G",
          "ParameterKey": "sc_config_QG__CL_SP_AUX",
          "Description": "Spacecraft Quality Shape, (vol/ideal) + (surf/ideal) + 1",
          "Cadence": "PT1M",
          "ValidMin": "1",
          "ValidMax": "3",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Tetrahedron Quality R",
          "ParameterKey": "sc_config_QR__CL_SP_AUX",
          "Description": "Spacecraft Quality Shape, norm*(vol/sphere vol)^(1/3)",
          "Cadence": "PT1M",
          "ValidMin": "0",
          "ValidMax": "1",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Minimum Distance Between Spacecraft",
          "ParameterKey": "sc_dr_min__CL_SP_AUX",
          "Description": "Minimum distance between spacecraft",
          "Cadence": "PT1M",
          "Units": "km",
          "UnitsConversion": "1e3>m",
          "ValidMin": "0",
          "ValidMax": "1e7",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Maximum Distance Between Spacecraft",
          "ParameterKey": "sc_dr_max__CL_SP_AUX",
          "Description": "Maximum distance between spacecraft",
          "Cadence": "PT1M",
          "Units": "km",
          "UnitsConversion": "1e3>m",
          "ValidMin": "0",
          "ValidMax": "1e7",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Rotation angle GSE to GSM",
          "ParameterKey": "gse_gsm__CL_SP_AUX",
          "Description": "Rotation angle GSE to GSM, positive from +z towards +y",
          "Cadence": "PT1M",
          "Units": "degrees",
          "UnitsConversion": "1>degrees",
          "ValidMin": "-90",
          "ValidMax": "90",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Dipole tilt",
          "ParameterKey": "dipole_tilt__CL_SP_AUX",
          "Description": "Dipole tilt in GSM z-x plane, positive from +z towards +x",
          "Cadence": "PT1M",
          "Units": "degrees",
          "UnitsConversion": "1>degrees",
          "ValidMin": "-90",
          "ValidMax": "90",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Tetrahedron size L",
          "ParameterKey": "sc_geom_size__CL_SP_AUX",
          "Description": "Tetrahedron size",
          "Cadence": "PT1M",
          "Units": "km",
          "UnitsConversion": "1e3>m",
          "ValidMin": "0",
          "ValidMax": "1e7",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Tetrahedron Elongation",
          "ParameterKey": "sc_geom_elong__CL_SP_AUX",
          "Description": "Tetrahedron elongation",
          "Cadence": "PT1M",
          "ValidMin": "0",
          "ValidMax": "1",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Tetrahedron Planarity",
          "ParameterKey": "sc_geom_planarity__CL_SP_AUX",
          "Description": "Tetrahedron planarity",
          "Cadence": "PT1M",
          "ValidMin": "0",
          "ValidMax": "1",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Direction of elongation",
          "ParameterKey": "sc_geom_E_dir_gse__CL_SP_AUX",
          "Description": "direction of elongation, direction cosines",
          "Cadence": "PT1M",
          "Structure": {
            "Size": "3"
          },
          "ValidMin": "-1",
          "ValidMax": "1",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Normal of Planarity",
          "ParameterKey": "sc_geom_P_nor_gse__CL_SP_AUX",
          "Description": "normal of planarity, direction cosines",
          "Cadence": "PT1M",
          "Structure": {
            "Size": "3"
          },
          "ValidMin": "-1",
          "ValidMax": "1",
          "Support": {
            "SupportQuantity": "Other"
          }
        }
      ]
    }
  }
}