{
  "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-2.4.1.xsd",
    "Version": "2.4.1",
    "NumericalData": {
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      "ResourceHeader": {
        "ResourceName": "MMS_1234 - Ephemeris - orbit t89d",
        "ReleaseDate": "2025-10-17T03:27:41Z",
        "Description": "MMS tetrahedron formation. This dataset contains the barycenter of the tetrahedron and positions of the spacecrafts relative to the barycenter. Positions are expressed in GSE and GSM coordinate systems.\n    ",
        "Contact": [
          {
            "PersonID": "spase://CNES/Person/CDPP-AMDA/M.G.Henderson",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://CNES/Person/CDPP-AMDA/S.K.Morley",
            "Role": "PrincipalInvestigator"
          }
        ],
        "InformationURL": [
          {
            "Name": "MMS homepage at GSFC",
            "URL": "http://mms.gsfc.nasa.gov/"
          },
          {
            "Name": "Science Data Center at LASP",
            "URL": "http://lasp.colorado.edu/mms/sdc/"
          }
        ],
        "PriorID": "mms1-orb-t89d"
      },
      "AccessInformation": [
        {
          "RepositoryID": "spase://SMWG/Repository/CDPP/AMDA",
          "Availability": "Online",
          "AccessRights": "Open",
          "AccessURL": {
            "Name": "CDPP/AMDA HAPI Server",
            "URL": "https://amda.irap.omp.eu/service/hapi",
            "Style": "HAPI",
            "ProductKey": "mms1234-orb-t89d",
            "Description": "Web Service to this product using the HAPI interface."
          },
          "Format": "CSV",
          "Acknowledgement": "Thank you for acknowledging the use of AMDA in publications with wording like \"Data analysis was performed with the AMDA science analysis system provided by the Centre de Données de la Physique des Plasmas (CDPP) supported by CNRS, CNES, Observatoire de Paris and Université Paul Sabatier, Toulouse\". See the Rules of the road at https://amda.cdpp.eu/help/policy.html . Please acknowledge the Data Providers."
        },
        {
          "RepositoryID": "spase://SMWG/Repository/CDPP/AMDA",
          "Availability": "Online",
          "AccessRights": "Open",
          "AccessURL": {
            "Name": "CDPP/AMDA Web application",
            "URL": "https://amda.cdpp.eu",
            "Description": "Access to Data via CDPP/AMDA Web application."
          },
          "Format": [
            "CSV",
            "VOTable",
            "CDF",
            "PNG"
          ],
          "Acknowledgement": "Thank you for acknowledging the use of AMDA in publications with wording like \"Data analysis was performed with the AMDA science analysis system provided by the Centre de Données de la Physique des Plasmas (CDPP) supported by CNRS, CNES, Observatoire de Paris and Université Paul Sabatier, Toulouse\". See the Rules of the road at https://amda.cdpp.eu/help/policy.html . Please acknowledge the Data Providers."
        }
      ],
      "ProviderName": "IRAP",
      "InstrumentID": "spase://CNES/Instrument/CDPP-AMDA/MMS1234/Ephemeris",
      "MeasurementType": "Ephemeris",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "2015-03-13T00:00:00Z",
          "StopDate": "2025-09-29T23:59:30Z"
        },
        "Cadence": "PT30S"
      },
      "Parameter": [
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          "Name": "xyz_bary_gse",
          "ParameterKey": "mms1234_xyz_bary_gse",
          "Description": "Spacecraft barycenter position in GSE",
          "UCD": "pos.ephem;pos.earth;instr.obsty",
          "Units": "Re",
          "UnitsConversion": "6.4e6>m",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "GSE"
          },
          "RenderingHints": {
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          },
          "Structure": {
            "Size": "3",
            "Element": [
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                "Qualifier": "Component.I",
                "Index": "1",
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              },
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                "Name": "y",
                "Qualifier": "Component.J",
                "Index": "2",
                "ParameterKey": "mms1234_xyz_bary_gse(1)"
              },
              {
                "Name": "z",
                "Qualifier": "Component.K",
                "Index": "3",
                "ParameterKey": "mms1234_xyz_bary_gse(2)"
              }
            ]
          },
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "xyz_bary_gsm",
          "ParameterKey": "mms1234_xyz_bary_gsm",
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          "Units": "Re",
          "UnitsConversion": "6.4e6>m",
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            ]
          },
          "Support": {
            "SupportQuantity": "Positional"
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        },
        {
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          "ParameterKey": "mms1234_sep_mms1_gse",
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          "UCD": "pos.ephem;pos.earth;instr.obsty",
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        },
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          "Name": "separation mms1 gsm",
          "ParameterKey": "mms1234_sep_mms1_gsm",
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                "ParameterKey": "mms1234_sep_mms1_gsm(2)"
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            ]
          },
          "Support": {
            "SupportQuantity": "Positional"
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        },
        {
          "Name": "separation mms2 gse",
          "ParameterKey": "mms1234_sep_mms2_gse",
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          "UCD": "pos.ephem;pos.earth;instr.obsty",
          "Units": "km",
          "UnitsConversion": "6.4e6>m",
          "CoordinateSystem": {
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            "CoordinateSystemName": "GSE"
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                "Index": "3",
                "ParameterKey": "mms1234_sep_mms2_gse(2)"
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            ]
          },
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
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          "Name": "separation mms2 gsm",
          "ParameterKey": "mms1234_sep_mms2_gsm",
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                "ParameterKey": "mms1234_sep_mms2_gsm(1)"
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                "ParameterKey": "mms1234_sep_mms2_gsm(2)"
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          },
          "Support": {
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        },
        {
          "Name": "separation mms3 gse",
          "ParameterKey": "mms1234_sep_mms3_gse",
          "Description": "MMS3 barycenter separation in GSE",
          "UCD": "pos.ephem;pos.earth;instr.obsty",
          "Units": "km",
          "UnitsConversion": "6.4e6>m",
          "CoordinateSystem": {
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            "CoordinateSystemName": "GSE"
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                "ParameterKey": "mms1234_sep_mms3_gse(2)"
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          "Support": {
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        },
        {
          "Name": "separation mms3 gsm",
          "ParameterKey": "mms1234_sep_mms3_gsm",
          "Description": "MMS3 barycenter separation in GSM",
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          "UnitsConversion": "6.4e6>m",
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        },
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          "Name": "separation mms4 gse",
          "ParameterKey": "mms1234_sep_mms4_gse",
          "Description": "MMS4 barycenter separation in GSE",
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          "Units": "km",
          "UnitsConversion": "6.4e6>m",
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          "ParameterKey": "mms1234_sep_mms4_gsm",
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}