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    },
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/STEREO-A/PLASTIC/Protons/PT1H",
      "NamingAuthority": "NASA",
      "ResourceType": "NumericalData",
      "ResourceHeader": {
        "ResourceName": "STEREO-A Plasma and Suprathermal Ion Composition (PLASTIC) 1-hour Proton Plasma Parameters",
        "DOI": "https://doi.org/10.48322/nax5-0024",
        "ReleaseDate": "2025-12-04T13:31:34Z",
        "RevisionHistory": {
          "RevisionEvent": [
            {
              "ReleaseDate": "2021-04-27T15:38:11",
              "Note": "Only known prior ReleaseDate of the metadata"
            },
            {
              "ReleaseDate": "2023-07-30T12:34:56.789",
              "Note": "Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727"
            },
            {
              "ReleaseDate": "2025-10-03T10:49:13Z",
              "Note": "Updated PublishedBy name to match ROR Registry. 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": "2025-12-04T13:31:34Z",
              "Note": "Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB"
            }
          ]
        },
        "Description": "This data product contains 1-hour averaged values of solar wind proton flow speed, density, and temperature and corresponding thermal speed. The records also hold flow velocity vector components and direction angles in HERTN and RTN coordinates. Chi-squared and statistical uncertainties are included, as are various flags. STEREO position information is given in radial distance and HEE, HEEQ and HCI direction angles.",
        "Acknowledgement": "Please acknowledge STEREO PLASTIC Investigation (A.B. Galvin, PI) and NASA Contract NAS5-00132.",
        "PublicationInfo": {
          "Authors": "Galvin, Antoinette, B.",
          "PublicationDate": "2023-01-01T00:00:00",
          "PublishedBy": "Goddard Space Flight Center"
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            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/Lee.Frost.Bargatze",
            "Role": "MetadataContact"
          }
        ],
        "InformationURL": {
          "Name": "PLASTIC Index page at UNH",
          "URL": "http://stereo.sr.unh.edu/data/PLASTIC_Resources/index.htm"
        },
        "PriorID": [
          "spase://VHO/NumericalData/STEREO-A/PLASTIC/Protons/PT1H",
          "spase://VSPO/NumericalData/STEREO-A/PLASTIC/Protons/PT1H"
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              "Note": "CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products"
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          },
          "AccessURL": {
            "Name": "CDAWeb",
            "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=STA_L2_PLA_1DMAX_1HR&index=sp_phys",
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          },
          "AccessURL": {
            "Name": "CDAWeb HAPI Server",
            "URL": "https://cdaweb.gsfc.nasa.gov/hapi",
            "Style": "HAPI",
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            "Description": "Web Service to this product using the HAPI interface."
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          },
          "AccessURL": [
            {
              "Name": "FTPS from SPDF (not with most browsers)",
              "URL": "ftps://spdf.gsfc.nasa.gov/pub/data/stereo/ahead/l2/plastic/1dmax/1hr/"
            },
            {
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          },
          "AccessURL": {
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            "URL": "https://stereo-ssc.nascom.nasa.gov/data/ins_data/plastic/level2/Protons/Derived_from_1D_Maxwellian/ASCII/1hr/A/",
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              "Note": "CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products"
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          },
          "AccessURL": {
            "Name": "STEREO Science Center - CDF",
            "URL": "https://stereo-ssc.nascom.nasa.gov/data/ins_data/plastic/level2/Protons/Derived_from_1D_Maxwellian/ahead/1hr/",
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      "ProcessingLevel": "Calibrated",
      "InstrumentID": "spase://SMWG/Instrument/STEREO-A/PLASTIC",
      "MeasurementType": "ThermalPlasma",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "2007-02-14T00:00:00",
          "RelativeStopDate": "P3M"
        },
        "Cadence": "PT1H"
      },
      "ObservedRegion": "Heliosphere.Remote1AU",
      "Parameter": [
        {
          "Name": "Epoch",
          "ParameterKey": "epoch_1hr",
          "Description": "Beginning of time interval",
          "Units": "ms",
          "ValidMin": "6.2798371e+13",
          "ValidMax": "6.4092125e+13",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "PB5 Time",
          "ParameterKey": "time_pb5",
          "Description": "Time of observation in Year, Day, and milliseconds",
          "ValidMin": "1997 237 0",
          "ValidMax": "2030 365 0",
          "FillValue": "-2147483648",
          "Support": {
            "SupportQuantity": "Temporal"
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        },
        {
          "Name": "Error Condition",
          "ParameterKey": "error_1hr",
          "Description": "Inidcates possible error condition. 0=no known issues, 1=Processing error, 2=Level 1 error, 3=Data overflow, 4=Data outside 3-sigma limit (1 hr window). 5=Data gap (usually due to operations, 6=Jump in thermal speed, use caution, 7=Suspicious thermal speed, 8=Removed by hand.",
          "ValidMin": "0",
          "ValidMax": "7",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Density Value Caution",
          "ParameterKey": "caution_1hr",
          "Description": "Indicates how sensitive the density value is to method for determining background correction. 0=no issues (lt 5% effect). 1=minor issues (5-10% effect). 2=use with caution (gt 10% effect).",
          "ValidMin": "0.0",
          "ValidMax": "2.0",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Cycles Density",
          "ParameterKey": "cycles_den_1hr",
          "Description": "Indicates how many 1-min cycles were included in average",
          "ValidMin": "0.0",
          "ValidMax": "60.0",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Cycles Speed",
          "ParameterKey": "cycles_speed_1hr",
          "Description": "Indicates how many 1-min cycles were included in average.",
          "ValidMin": "0.0",
          "ValidMax": "60.0",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Cycles North/South Flow Angle",
          "ParameterKey": "cycles_ns_inst_1hr",
          "Description": "Indicates how many 1-min cycles were included in average. Used for N/S flow angle (instrument coordinates only)",
          "ValidMin": "0.0",
          "ValidMax": "60.0",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Cycles Velocity",
          "ParameterKey": "cycles_vel_1hr",
          "Description": "Indicates how many 1-min cycles were included in average. Used for velocity components, and angles (except ns_inst).",
          "ValidMin": "0.0",
          "ValidMax": "60.0",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Attitude Flage",
          "ParameterKey": "attitude_flag_1hr",
          "Description": "Indicates when instrument flow angles are not in nominal s/c orientation. 0=OK. 1=problem. [roll, yaw, pitch]",
          "ValidMin": "0.0",
          "ValidMax": "1",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Source Flage for EW Data",
          "ParameterKey": "ew_source_flag_1hr",
          "Description": "Source Flage for EW Data. 1st elem=source: 0=main (no data). 1=schan. 2=mixed (data from schan). 3=combination. 2nd elem=flag: 0=got peak in dist. 1=missed peak. 2=combination",
          "ValidMin": "0.0",
          "ValidMax": "3",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Reduced Chi Squared",
          "ParameterKey": "Reduced_Chi2_1hr",
          "Description": "Reduced Chi Square for 1D Maxwellian fit",
          "ValidMin": "0.0",
          "ValidMax": "5.0",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Preliminary Statistical Uncertainty for the Angles",
          "ParameterKey": "stat_uncertainty_angle_1hr",
          "Description": "Preliminary Statistical Uncertainty for the Angles",
          "ValidMin": "0.0",
          "ValidMax": "100.0",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Proton Number Density",
          "ParameterKey": "proton_number_density_1hr",
          "Description": "Proton Number Density. 1D Maxwellian Fit",
          "Units": "1/cm^3",
          "ValidMin": "0.0",
          "ValidMax": "500.0",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "Fit",
            "ParticleQuantity": "NumberDensity"
          }
        },
        {
          "Name": "Proton Bulk Speed",
          "ParameterKey": "proton_bulk_speed_1hr",
          "Description": "Proton Bulk Speed. 1D Maxwellian Fit",
          "Units": "km/s",
          "ValidMin": "200.0",
          "ValidMax": "3000.0",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "Fit",
            "ParticleQuantity": "FlowSpeed"
          }
        },
        {
          "Name": "Proton Temperature",
          "ParameterKey": "proton_temperature_1hr",
          "Description": "Proton Temperature. 1D Maxwellian Fit",
          "Units": "K",
          "ValidMin": "1000",
          "ValidMax": "10000000",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "Fit",
            "ParticleQuantity": "Temperature"
          }
        },
        {
          "Name": "Proton Thermal Speed",
          "ParameterKey": "proton_thermal_speed_1hr",
          "Description": "Proton Thermal Speed. 1D Maxwellian Fit",
          "Units": "km/s",
          "ValidMin": "0",
          "ValidMax": "500",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "Fit",
            "ParticleQuantity": "ThermalSpeed"
          }
        },
        {
          "Name": "Proton North/South Flow Angle",
          "ParameterKey": "proton_n_s_flow_angle_inst_1hr",
          "Description": "Proton Flow Angle North/South. 1D Maxwellian Fit. Instrument Coordinates. Angle gt 0 means flow from S of ecliptic plane (i.e. Vn gt 0). No aberration angle. No transformation.",
          "Units": "degrees",
          "ValidMin": "-25",
          "ValidMax": "25",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "DirectionAngle.ElevationAngle",
            "ParticleQuantity": "Velocity"
          }
        },
        {
          "Name": "Proton E/W Flow Angle",
          "ParameterKey": "proton_e_w_flow_angle_inst_1hr",
          "Description": "Proton East/West Flow Angle. Instrument Coordinates. Angle gt 0 means flow from E of the sun (i.e. Vt gt 0). inst. No aberration angle. No transformation.",
          "Units": "degrees",
          "ValidMin": "-25",
          "ValidMax": "25",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "DirectionAngle.AzimuthAngle",
            "ParticleQuantity": "Velocity"
          }
        },
        {
          "Name": "Proton North/South Flow Angle",
          "ParameterKey": "proton_n_s_flow_angle_HERTN_1hr",
          "Description": "Proton Flow Angle North/South. 1D Maxwellian Fit. Angle gt 0 means flow from S of ecliptic plane (i.e. Vn gt 0). No aberration angle. No transformation.",
          "Units": "degrees",
          "ValidMin": "-25",
          "ValidMax": "25",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "DirectionAngle.ElevationAngle",
            "ParticleQuantity": "Velocity"
          }
        },
        {
          "Name": "Proton E/W Flow Angle",
          "ParameterKey": "proton_e_w_flow_angle_HERTN_1hr",
          "Description": "Proton East/West Flow Angle. Angle gt 0 means flow from E of the sun (i.e. Vt gt 0). inst. No aberration angle. No transformation.",
          "Units": "degrees",
          "ValidMin": "-25",
          "ValidMax": "25",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "DirectionAngle.AzimuthAngle",
            "ParticleQuantity": "Velocity"
          }
        },
        {
          "Name": "Proton Velocity - R Component",
          "ParameterKey": "proton_Vr_HERTN_1hr",
          "Description": "Proton Vr. 1D Maxwellian Fit. HERTN coordinates",
          "Units": "km/s",
          "ValidMin": "200",
          "ValidMax": "3000",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "Component.I",
            "ParticleQuantity": "Velocity"
          }
        },
        {
          "Name": "Proton Velocity - T Component",
          "ParameterKey": "proton_Vt_HERTN_1hr",
          "Description": "Proton Vt. 1D Maxwellian Fit. HERTN coordinates",
          "Units": "km/s",
          "ValidMin": "200",
          "ValidMax": "3000",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "Component.J",
            "ParticleQuantity": "Velocity"
          }
        },
        {
          "Name": "Proton Velocity - N Component",
          "ParameterKey": "proton_Vn_HERTN_1hr",
          "Description": "Proton Vn. 1D Maxwellian Fit. HERTN coordinates",
          "Units": "km/s",
          "ValidMin": "200",
          "ValidMax": "3000",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "Component.K",
            "ParticleQuantity": "Velocity"
          }
        },
        {
          "Name": "Proton North/South Flow Angle",
          "ParameterKey": "proton_n_s_flow_angle_RTN_1hr",
          "Description": "Proton Flow Angle North/South. 1D Maxwellian Fit. Angle gt 0 means flow from S of ecliptic plane (i.e. Vn gt 0)",
          "Units": "degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "RTN"
          },
          "ValidMin": "-25",
          "ValidMax": "25",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "DirectionAngle.ElevationAngle",
            "ParticleQuantity": "Velocity"
          }
        },
        {
          "Name": "Proton E/W Flow Angle",
          "ParameterKey": "proton_e_w_flow_angle_RTN_1hr",
          "Description": "Proton East/West Flow Angle. Angle gt 0 means flow from E of the sun (i.e. Vt gt 0).",
          "Units": "degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "RTN"
          },
          "ValidMin": "-25",
          "ValidMax": "25",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "DirectionAngle.AzimuthAngle",
            "ParticleQuantity": "Velocity"
          }
        },
        {
          "Name": "Proton Velocity - R Component",
          "ParameterKey": "proton_Vr_RTN_1hr",
          "Description": "Proton Vr. 1D Maxwellian Fit. HERTN coordinates",
          "Units": "km/s",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "RTN"
          },
          "ValidMin": "200",
          "ValidMax": "3000",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "Component.I",
            "ParticleQuantity": "Velocity"
          }
        },
        {
          "Name": "Proton Velocity - T Component",
          "ParameterKey": "proton_Vt_RTN_1hr",
          "Description": "Proton Vt. 1D Maxwellian Fit. HERTN coordinates",
          "Units": "km/s",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "RTN"
          },
          "ValidMin": "200",
          "ValidMax": "3000",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "Component.J",
            "ParticleQuantity": "Velocity"
          }
        },
        {
          "Name": "Proton Velocity - N Component",
          "ParameterKey": "proton_Vn_RTN_1hr",
          "Description": "Proton Vn. 1D Maxwellian Fit. HERTN coordinates",
          "Units": "km/s",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "RTN"
          },
          "ValidMin": "200",
          "ValidMax": "3000",
          "FillValue": "-1e31",
          "Particle": {
            "ParticleType": "Proton",
            "Qualifier": "Component.K",
            "ParticleQuantity": "Velocity"
          }
        },
        {
          "Name": "Carrington Rotation",
          "ParameterKey": "carrington_rotation_1hr",
          "Description": "Carrington Rotation Number",
          "ValidMin": "2049",
          "ValidMax": "2180",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Spacecraft Longitude - Carrington",
          "ParameterKey": "spcrft_lon_carr_1hr",
          "Description": "Spacecraft Longitude - Carrington",
          "ValidMin": "0",
          "ValidMax": "360",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Heliocentric Distance",
          "ParameterKey": "heliocentric_dist_1hr",
          "Description": "Heliocentric Distance",
          "Units": "km",
          "ValidMin": "1e8",
          "ValidMax": "2e8",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft Longitude - HEE",
          "ParameterKey": "spcrft_lon_hee_1hr",
          "Description": "Spacecraft longitude - HEE",
          "Units": "degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "HEE"
          },
          "ValidMin": "-180",
          "ValidMax": "180",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft Latitude - HEE",
          "ParameterKey": "spcrft_lat_hee_1hr",
          "Description": "Spacecraft latitude - HEE",
          "Units": "degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "HEE"
          },
          "ValidMin": "-90",
          "ValidMax": "90",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft Longitude - HEEQ",
          "ParameterKey": "spcrft_lon_heeq_1hr",
          "Description": "Spacecraft longitude - HEEQ",
          "Units": "degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "HEEQ"
          },
          "ValidMin": "-180",
          "ValidMax": "180",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft Latitude - HEEQ",
          "ParameterKey": "spcrft_lat_heeq_1hr",
          "Description": "Spacecraft latitude - HEEQ",
          "Units": "degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "HEEQ"
          },
          "ValidMin": "-90",
          "ValidMax": "90",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft Longitude - HCI",
          "ParameterKey": "spcrft_lon_hci_1hr",
          "Description": "Spacecraft longitude - HCI",
          "Units": "degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "HCI"
          },
          "ValidMin": "-180",
          "ValidMax": "180",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "Spacecraft Latitude - HCI",
          "ParameterKey": "spcrft_lat_hci_1hr",
          "Description": "Spacecraft latitude - HCI",
          "Units": "degrees",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "HCI"
          },
          "ValidMin": "-90",
          "ValidMax": "90",
          "FillValue": "-1e31",
          "Support": {
            "SupportQuantity": "Positional"
          }
        }
      ]
    }
  }
}