{
  "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://GBO/NumericalData/SanMarco-DL/EFI/PT0.5S",
      "ResourceHeader": {
        "ResourceName": "San Marco-DL Electric Field AC and DC Data",
        "ReleaseDate": "2020-07-03T23:28:58Z",
        "Description": "This San Marco D/L Electric Field Experiment (EFI) data set was provided \nby the PI team on 12 magnetic tapes in ASCII format and constitutes the \nfinal EFI archiving product (filename: yymmddhhmm.dc). The data from the\nfirst tape are available online in this directory. The following parameters \nhave been archived: (A) DC electric field (8 points per second) along \nthe X and Y axes in spacecraft coordinates; (B) Variational (AC) electric \nfields averaged at 0.5 second intervals for all channels of each of the \nthree spectrometers; (C) Some orbital parameters such as the altitude of \nthe satellite, the geographic longitude and latitude, the local solar \ntime and the dip latitude, and a day/night flag for the DC data; (D) Non-\nreduced plasma ion densities measured by the Ion Velocity Instrument \n(IVI). The DC portion of the EFI experiment is only valid for non-reduced \nIVI data > 2.5 volts corresponding roughly to an electron density of 10^4 \nelectrons per cubic centimeter. Note that the AC data is valid at all \nplasma densities. More details can be found in the acformat_sfdu.txt and the \nvoldesc_sfdu.txt files. Both of these files are ASCII text files.\n\nFurther details about the San Marco spacecraft, experiment, and data sets \ncan be found at the San Marco home page, http://crpsm.psm.uniroma1.it/ \n ",
        "Acknowledgement": "Please acknowledge NASA Space Physics Data Facility, National Space Science Data Center and the Principal Investigator for data usage.",
        "Contact": {
          "PersonID": "spase://SMWG/Person/Thomas.L.Aggson",
          "Role": "PrincipalInvestigator"
        },
        "PriorID": "spase://VSPO/NumericalData/SanMarco-DL/EFI/PT0.5S"
      },
      "AccessInformation": {
        "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
        "Availability": "Online",
        "AccessRights": "Open",
        "AccessURL": [
          {
            "Name": "FTPS from SPDF (not with most browsers)",
            "URL": "ftps://spdf.gsfc.nasa.gov/pub/data/san_marco/electric_fields_efi/"
          },
          {
            "Name": "HTTPS from SPDF",
            "URL": "https://spdf.gsfc.nasa.gov/pub/data/san_marco/electric_fields_efi/",
            "Description": "In CDF via HTTP from SPDF"
          }
        ],
        "Format": "Text"
      },
      "ProviderProcessingLevel": "CALIBRATED",
      "InstrumentID": "spase://SMWG/Instrument/SanMarco-DL/EFI",
      "MeasurementType": "ElectricField",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "1988-04-20T00:00:00",
          "StopDate": "1988-06-19T07:00:00"
        },
        "Cadence": "PT0.5S"
      },
      "ObservedRegion": [
        "Earth.NearSurface.Thermosphere",
        "Earth.NearSurface.Ionosphere"
      ]
    }
  }
}