{
  "Spase": {
    "xmlns": "http://www.spase-group.org/data/schema",
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    "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/Cassini/MAG/CDF/PT1M",
      "NamingAuthority": "NASA",
      "ResourceType": "NumericalData",
      "ResourceHeader": {
        "ResourceName": "Cassini 1-min cruise phase magnetic field data in CDF Format",
        "DOI": "https://doi.org/10.48322/vfsa-ej68",
        "ReleaseDate": "2025-12-04T13:29:01Z",
        "RevisionHistory": {
          "RevisionEvent": [
            {
              "ReleaseDate": "2021-04-27T15:38:11Z",
              "Note": "Only known prior ReleaseDate of the metadata"
            },
            {
              "ReleaseDate": "2025-11-14T16:01:56Z",
              "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": "2025-12-04T13:29:01Z",
              "Note": "Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB"
            }
          ]
        },
        "Description": "Cassini Magnetic Field 1 min Averages for the Year 2020 in RTN Coordinates. RTN Coordinates consist of the Radial Component, R, from the Sun to the Spacecraft), the Tangential Component, T, parallel to the Solar Equatorial Plane and perpendicular to R, and the Normal Component, N, that completes Right-Handed Set. This File contains a Subset of all of the Cassini MAG Data for 2001 consisting of only the Data after the Day of the last Jupiter Bowshock Crossing, 2001-01-15. The Data are mostly from the Fluxgate Magnetometer (FGM). The Table at vhm.txt identifies the 52 Days in 2000 to 2004 for which the Data are solely from the Vector Helium Magnetometer (VHM). Days not in the Table contain only FGM Data. VHM_mode Variable indicates (value 1) whether Data are from VHM. This File was produced from raw, L1A, Data at the PDS/PPI node using Software provided by the Cassini MAG Team, and employing the latest Calibration available. The PDS/PPI Node produced both 1 s vectors and 1 min averages. The MAG team reports that while Range 0 data are well calibrated for both the Fluxgate Magnetometer, FGM and the Vector Helium Magnetometer, VHM, the higher Range Data need Improvement, See the RANGE_CHANGES.ASC Document for a Time History of Range Changes. These Data will be replaced as the Calibration is improved. The FGM_mode Variable indicates (Value 0) if Data is Range 0. See https://www.igpp.ucla.edu/cgi-bin/ditdos?volume=COMAG_0XXX&folder=DOCUMENT/DATA_QUALITY&file=RANGE_CHANGES for Details. In particular, this Documentation reports that FGM was in Range=0 for the following extended Intervals plus other brief Intervals, YYYY/DDD/HH, inclusive: 1999/230/05 to 1999/245/07, 1999/245/09 to 2000/037/12, 2000/039/00 to 2000/053/18, 2000/053/20 to 2000/056/01, 2000/057/23 to 2002/334/13, 2002/334/17 to 2003/292/18, 2003/292/22 to 2004/046/11, 2004/046/15 to 2004/088/08, 2004/088/12 to 2004/136/06, 2004/136/11 to 2004/174/01, 2004/174/06 to 2004/182/17",
        "Acknowledgement": "M. Dougherty",
        "PublicationInfo": {
          "Authors": "Dougherty, Michele K.",
          "PublicationDate": "2025-11-14T16:01:56Z",
          "PublishedBy": "Space Physics Data Facility"
        },
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Michele.Karen.Dougherty",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/Robert.E.McGuire",
            "Role": "MetadataContact"
          },
          {
            "PersonID": "spase://SMWG/Person/Lee.Frost.Bargatze",
            "Role": "MetadataContact"
          }
        ],
        "PriorID": "spase://VSPO/NumericalData/Cassini/MAG/CDF/PT1M"
      },
      "AccessInformation": [
        {
          "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": "FTPS from SPDF (not with most browsers)",
              "URL": "ftps://spdf.gsfc.nasa.gov/pub/data/cassini/mag_1min/cdf/",
              "Description": "In CDF via ftp from SPDF."
            },
            {
              "Name": "HTTPS from SPDF",
              "URL": "https://spdf.gsfc.nasa.gov/pub/data/cassini/mag_1min/cdf/",
              "Description": "In CDF via http from SPDF."
            },
            {
              "Name": "CDAWeb",
              "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=CASSINI_MAG_1MIN_MAGNETIC_FIELD&index=sp_phys",
              "ProductKey": "CASSINI_MAG_1MIN_MAGNETIC_FIELD",
              "Description": "Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb"
            }
          ],
          "Format": "CDF",
          "Encoding": "None",
          "Acknowledgement": "M. Dougherty. Please acknowledge the data providers and CDAWeb when using these data."
        },
        {
          "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": "CASSINI_MAG_1MIN_MAGNETIC_FIELD",
            "Description": "Web Service to this product using the HAPI interface."
          },
          "Format": "CSV",
          "Acknowledgement": "M. Dougherty. Please acknowledge the data providers and CDAWeb when using these data."
        }
      ],
      "ProcessingLevel": "Calibrated",
      "InstrumentID": "spase://SMWG/Instrument/Cassini/MAG",
      "MeasurementType": "MagneticField",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "2000-01-01T00:00:00.000",
          "StopDate": "2004-01-01T23:59:59.999"
        },
        "Cadence": "PT1M"
      },
      "ObservedRegion": [
        "Heliosphere",
        "Heliosphere.NearEarth",
        "Heliosphere.Outer"
      ],
      "Parameter": [
        {
          "Name": "Epoch",
          "ParameterKey": "Epoch",
          "Description": "Default Time",
          "Cadence": "PT1M",
          "Units": "ms",
          "UnitsConversion": "1e-3>s",
          "ValidMin": "01-Jan-1000 00:00:00.000",
          "ValidMax": "01-Jan-3000 00:00:00.000",
          "FillValue": "31-Dec-9999 23:59:59.999",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Magnetic Field Vector, RTN",
          "Set": "Time series defined by using: EPOCH",
          "ParameterKey": "B_comp",
          "Description": "Magnetic Field Vector, Radial-Tangential-Normal, RTN, Coordinates",
          "Cadence": "PT1M",
          "Units": "nT",
          "UnitsConversion": "1e-9>T",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "RTN"
          },
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            "ValueFormat": "F13.2"
          },
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            "Size": "3",
            "Element": [
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                "Name": "Br",
                "Index": "1"
              },
              {
                "Name": "Bt",
                "Index": "2"
              },
              {
                "Name": "Bn",
                "Index": "3"
              }
            ]
          },
          "ValidMin": "-1000.0",
          "ValidMax": "1000.0",
          "FillValue": "-1.0e+31",
          "Field": {
            "Qualifier": [
              "Vector",
              "Average"
            ],
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "Magnetic Field Magnitude",
          "Set": "Time series defined by using: EPOCH",
          "ParameterKey": "B_mag",
          "Description": "Magnetic Field Magnitude",
          "Cadence": "PT1M",
          "Units": "nT",
          "UnitsConversion": "1e-9>T",
          "RenderingHints": {
            "DisplayType": "TimeSeries",
            "AxisLabel": "B_tot, nT",
            "ValueFormat": "F13.2"
          },
          "ValidMin": "0.0",
          "ValidMax": "1000.0",
          "FillValue": "-1.0e+31",
          "Field": {
            "Qualifier": [
              "Magnitude",
              "Average"
            ],
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "VHM Mode",
          "Set": "Time series defined by using: EPOCH",
          "ParameterKey": "VHM_mode",
          "Description": "Flag for Data Source: FGM=Fluxgate Magnetometer VHM=Vector Helium Magnetometer",
          "Cadence": "PT1M",
          "RenderingHints": {
            "DisplayType": "TimeSeries",
            "AxisLabel": "FGM(0)/VHM(1)",
            "ValueFormat": "I1"
          },
          "ValidMin": "0",
          "ValidMax": "1",
          "FillValue": "-128",
          "Support": {
            "SupportQuantity": "InstrumentMode"
          }
        },
        {
          "Name": "FGM Mode",
          "Set": "Time series defined by using: EPOCH",
          "ParameterKey": "FGM_mode",
          "Description": "FGM Range Mode, Range 0 is the only well-calibrated Data currently available",
          "Cadence": "PT1M",
          "RenderingHints": {
            "DisplayType": "TimeSeries",
            "AxisLabel": "FGM range mode",
            "ValueFormat": "I1"
          },
          "ValidMin": "0",
          "ValidMax": "1",
          "FillValue": "-128",
          "Support": {
            "SupportQuantity": "InstrumentMode"
          }
        },
        {
          "Name": "Spacecraft Heliocentric Distance",
          "Set": "Time series defined by using: EPOCH",
          "ParameterKey": "sc_r",
          "Description": "Spacecraft Heliocentric Distance",
          "Cadence": "PT1M",
          "Units": "ua",
          "UnitsConversion": "1.495978706 e11>m",
          "RenderingHints": {
            "DisplayType": "TimeSeries",
            "AxisLabel": "S/C dist, AU",
            "ValueFormat": "F13.2"
          },
          "ValidMin": "0.0",
          "ValidMax": "9.9",
          "FillValue": "-1.0e+31",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Spacecraft Latitude, HGI, RTN",
          "Set": "Time series defined by using: EPOCH",
          "ParameterKey": "sc_lat",
          "Description": "Spacecraft Heliographic Latitude, Heliographic Inertial, HGI, Radial-Tangential-Normal, RTN, Coordinates",
          "Cadence": "PT1M",
          "Units": "°",
          "UnitsConversion": "0.0174532925>rad",
          "RenderingHints": {
            "DisplayType": "TimeSeries",
            "AxisLabel": "SC latitude, deg",
            "ValueFormat": "F13.2"
          },
          "ValidMin": "-1000.0",
          "ValidMax": "100.0",
          "FillValue": "-1.0e+31",
          "Support": {
            "Qualifier": "Magnitude",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft Longitude, HGI, RTN",
          "Set": "Time series defined by using: EPOCH",
          "ParameterKey": "sc_long",
          "Description": "Spacecraft Heliographic Longitude, Heliographic Inertial, HGI, Radial-Tangential-Normal, RTN, Coordinates",
          "Cadence": "PT1M",
          "Units": "°",
          "UnitsConversion": "0.0174532925>rad",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Spherical",
            "CoordinateSystemName": "HGI"
          },
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            "DisplayType": "TimeSeries",
            "AxisLabel": "SC longitude, deg",
            "ValueFormat": "F13.2"
          },
          "ValidMin": "-1000.0",
          "ValidMax": "400.0",
          "FillValue": "-1.0e+31",
          "Support": {
            "Qualifier": "DirectionAngle.AzimuthAngle",
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft Position, HGI, RTN",
          "Set": "Time series defined by using: EPOCH",
          "ParameterKey": "sc_pos",
          "Description": "Spacecraft Coordinates, Heliographic Inertial, HGI, Radial-Tangential-Normal, RTN, Coordinates",
          "Cadence": "PT1M",
          "Units": "ua",
          "UnitsConversion": "1.495978706 e11>m",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Spherical",
            "CoordinateSystemName": "HGI"
          },
          "RenderingHints": {
            "DisplayType": "TimeSeries",
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          "Structure": {
            "Size": "3",
            "Element": [
              {
                "Name": "X_HGI",
                "Index": "1"
              },
              {
                "Name": "Y_HGI",
                "Index": "2"
              },
              {
                "Name": "Z_HGI",
                "Index": "3"
              }
            ]
          },
          "ValidMin": "-100.0",
          "ValidMax": "90.0",
          "FillValue": "-1.0e+31",
          "Support": {
            "Qualifier": "DirectionAngle.ElevationAngle",
            "SupportQuantity": "Positional"
          }
        }
      ]
    }
  }
}