{
  "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-2.7.2.xsd",
    "Version": "2.7.2",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/TRACERS/TRACERS2/Level2/ElectricFieldsInstrument/EAC/Variable",
      "NamingAuthority": "NASA",
      "ResourceType": "NumericalData",
      "ResourceHeader": {
        "ResourceName": "TRACERS 2 Electric Fields Instrument (EFI) AC Electric Field, Level 2 (L2), Data",
        "AlternateName": "ts2_l2_efi_eac",
        "DOI": "https://doi.org/10.48322/e364-8p37",
        "ReleaseDate": "2026-10-03T19:00:06Z",
        "RevisionHistory": {
          "RevisionEvent": [
            {
              "ReleaseDate": "2026-07-15T09:38:52.838Z",
              "Note": "Only known prior ReleaseDate of the metadata, SAB"
            },
            {
              "ReleaseDate": "2026-10-03T12:51:44",
              "Note": "Remove DOI_DOI TLK"
            },
            {
              "ReleaseDate": "2026-10-03T19:00:06Z",
              "Note": "Changed http to https in top-level schemaLocation attribute. Added DOI. tlk"
            }
          ]
        },
        "Description": "The Spin-plane electric field vector, measured by the Electric Fields Instrument (EFI), in the TRACERS spinning frame (TSCS) is sampled.  The sampling rate is 2048 samples/s. The sampling rate is the same in both Back Orbit (BOR) and Region of Interest (ROI), but the cadence of one 1024 contiguous set of samples is ~64 s (BOR) and ~0.0005 s (ROI) respectively. Both time series data and frequency spectra of the time series are included.  Spectra are performed with a 512-point hanning window, with 7/8 overlap and consist of 256 linear frequencies between 0 and 256 Hz.",
        "Acknowledgement": "Please Acknowledge the TRACERS TEAM, for rules of use https:/tracers.physics.uiowa.edu/rules-use",
        "PublicationInfo": {
          "Authors": "Bonnell, John, W.; Miles, David, M..",
          "PublicationDate": "2026-07-15T23:13:50.525Z",
          "PublishedBy": "Space Physics Data Facility"
        },
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/John.W.Bonnell",
            "Role": [
              "InstrumentLead",
              "CoInvestigator"
            ]
          },
          {
            "PersonID": "spase://SMWG/Person/David.M.Miles",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/TRACERS_SOC",
            "Role": "HostContact"
          },
          {
            "PersonID": "spase://SMWG/Person/Lan.Jian",
            "Role": "MetadataContact"
          },
          {
            "PersonID": "spase://SMWG/Person/Scott.Boardsen",
            "Role": "MetadataContact"
          }
        ],
        "InformationURL": [
          {
            "Name": "TRACERS MISSION",
            "URL": "https://tracers.physics.uiowa.edu/",
            "Description": "TRACERS"
          },
          {
            "Name": "Electric Fields Instrument (EFI)",
            "URL": "https://doi.org/10.1007/s11214-025-01202-5",
            "Description": "Electric field measurements with a sampling rate for EDC of 128 samples/s (ROI), 8 samples/s (BOR), EAC 2048 samples/s (ROI), electric field high frequency (EHF) 20e6 samples/s (ROI). For EAC and EHF the sampling rate is the same as the ROI, but the cadence is 16 s and 2048 s respectively."
          }
        ],
        "PriorID": "spase://placeholder/NoPriorID"
      },
      "AccessInformation": [
        {
          "RepositoryID": "spase://SMWG/Repository/TRACERS_PDP",
          "Availability": "Online",
          "AccessRights": "Open",
          "AccessURL": {
            "Name": "HTTPS from the TRACERS SDC",
            "URL": "https://tracers.physics.uiowa.edu/l2-public-data-products",
            "Description": "In CDF via http from the TRACERS Science Data Center"
          },
          "Format": "CDF",
          "Encoding": "None",
          "Acknowledgement": "Please Acknowledge the TRACERS TEAM, for rules of use https:/tracers.physics.uiowa.edu/rules-use"
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb",
          "Availability": "Online",
          "AccessRights": "Open",
          "AccessURL": [
            {
              "Name": "FTPS from SPDF (not with most browsers)",
              "URL": "ftps://spdf.gsfc.nasa.gov/pub/data/tracers/tracers2/efi/l2/eac/",
              "Description": "In CDF via ftp from SPDF"
            },
            {
              "Name": "HTTPS from SPDF",
              "URL": "https://spdf.gsfc.nasa.gov/pub/data/tracers/tracers2/efi/l2/eac/",
              "Description": "In CDF via http from SPDF"
            },
            {
              "Name": "CDAWeb",
              "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=TS2_L2_EFI_EAC&index=sp_phys",
              "ProductKey": "ts2_l2_efi_eac",
              "Description": "Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb"
            }
          ],
          "Format": "CDF",
          "Encoding": "None",
          "Acknowledgement": "Please Acknowledge the TRACERS TEAM, for rules of use https:/tracers.physics.uiowa.edu/rules-use"
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb",
          "Availability": "Online",
          "AccessRights": "Open",
          "AccessURL": {
            "Name": "CDAWeb HAPI Server",
            "URL": "https://cdaweb.gsfc.nasa.gov/hapi",
            "Style": "HAPI",
            "ProductKey": "ts2_l2_efi_eac",
            "Description": "Web Service to this product using the HAPI interface"
          },
          "Format": "CSV",
          "Acknowledgement": "Please Acknowledge the TRACERS TEAM, for rules of use https:/tracers.physics.uiowa.edu/rules-use"
        }
      ],
      "ProcessingLevel": "Calibrated",
      "InstrumentID": "spase://NASA/Instrument/TRACERS/ElectricFieldsInstrument",
      "MeasurementType": "ElectricField",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "2025-08-04T22:57:34.000",
          "RelativeStopDate": "-P6M"
        },
        "Cadence": "PT99999.999S"
      },
      "ObservedRegion": [
        "Earth.Magnetosphere",
        "Earth.Cusp",
        "Earth.NearSurface.Ionosphere",
        "Earth.NearSurface.Ionosphere.Topside",
        "Earth.NearSurface.AuroralRegion",
        "Earth.NearSurface.PolarCap"
      ],
      "Caveats": "Currently No Cavets Identified"
    }
  }
}