{
  "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_6_1.xsd",
    "_Note": "Nodes prefixed with a _ are not valid SPASE, but are included for debugging. Values prefixed with a x_ are not valid SPASE but may considered for addition for completeness.",
    "Version": "2.6.1",
    "_MasterURL": "https://cdaweb.gsfc.nasa.gov/pub/software/cdawlib/0JSONS/isee1_pwi_sfr-e_00000000_v01.json (from all.xml)",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/ISEE1/PWE/SFR/PT32S",
      "_ResourceID": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json",
      "ResourceHeader": {
        "ResourceName": "ISEE-1 PWI: Sweep Frequency Receiver (SFR)",
        "_ResourceName": "Source: Master/CDFglobalAttributes/Logical_source_description",
        "AlternateName": "ISEE1_PWI_SFR-E",
        "_AlternateName": "Source: Master/CDFglobalAttributes/Logical_source",
        "Description": "'The ISEE-1 and -2 Plasma Wave Investigation' D. A. Gurnett, F. L. Scarf, R. W. Fredricks, and E. J. Smith, IEEE Transactions on Geoscience Electronics, Vol. GE-16, p. 225-230, 1978.",
        "_Description": "Source: Master/CDFglobalAttributes/TEXT",
        "_Rights": {
          "Name": "SPDX",
          "Description": "Creative Commons Zero v1.0 Universal",
          "URL": "https://spdx.org/licenses/CC0-1.0.html",
          "SchemeURI": "https://spdx.org/licenses/"
        },
        "InformationURL": [
          {
            "URL": "http://space.physics.uiowa.edu/plasma-wave/isee/",
            "Name": "University of Iowa ISEE PWI Page",
            "Description": "More information on ISEE-1 Plasma Wave Investigation is available at the University of Iowa ISEE Page",
            "_Note": "URL also in all.xml. Using master."
          },
          {
            "URL": "https://spdf.gsfc.nasa.gov/pub/data/isee/isee1/waves_pwi/aa_pre_generated_plots/",
            "Name": "Spectra plots",
            "Description": "Pre-generated and archived ISEE-1 PWI ",
            "_Note": "URL also in all.xml. Using master."
          },
          {
            "Name": "The University of Iowa ISEE-1 PWI Page",
            "URL": "http://www-pw.physics.uiowa.edu/isee/",
            "Description": "\n            ",
            "Language": "en",
            "_Note": "Source: InformationURL.json"
          }
        ]
      },
      "Caveats": "ISEE-1 PWI SFR data are open to everyone. However, users of these data are encouraged to contact the PI institute and the U of I ISEE website should questions arise.",
      "_Caveats": "Source: Master/CDFglobalAttributes/Rules_of_use",
      "DOI": "https://doi.org/10.48322/7e5f-4z64",
      "_DOI": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json",
      "AccessInformation": [
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Donald Gurnett at University Iowa",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "HTTPS from SPDF",
            "URL": "https://cdaweb.gsfc.nasa.gov/pub/data/isee/isee1/waves_pwi/sfr-e_pwi",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "isee1_pwi_sfr-e_%Y%m%d_%Q.cdf",
            "AccessDirectoryTemplate": "%Y",
            "ProductKey": "ISEE1_PWI_SFR-E"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Donald Gurnett at University Iowa",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "FTPS from SPDF",
            "URL": "ftps://cdaweb.gsfc.nasa.gov/pub/data/isee/isee1/waves_pwi/sfr-e_pwi",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "isee1_pwi_sfr-e_%Y%m%d_%Q.cdf",
            "AccessDirectoryTemplate": "%Y",
            "ProductKey": "ISEE1_PWI_SFR-E"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Donald Gurnett at University Iowa",
          "Format": [
            "CDF",
            "CSV",
            "GIF",
            "NetCDF",
            "PNG",
            "PS",
            "PDF",
            "XML",
            "x_Script.IDL",
            "x_Script.Python",
            "Text.ASCII",
            "x_WAV"
          ],
          "AccessURL": {
            "Name": "CDAWeb Web Service",
            "URL": "https://cdaweb.gsfc.nasa.gov/WebServices/",
            "Style": "WebService",
            "Description": "Instructions for using web services to access this dataset an other other metadata and options for CDAWeb datasets. The ProductKey here corresponds to the query parameter 'dataset' in the tables at the AccessURL in a dataset-related request can be made.",
            "ProductKey": "ISEE1_PWI_SFR-E"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Donald Gurnett at University Iowa",
          "Format": [
            "CDF",
            "GIF",
            "PDF",
            "Text.ASCII",
            "x_WAV"
          ],
          "AccessURL": {
            "Name": "CDAWeb Web Service user interface",
            "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=ISEE1_PWI_SFR-E",
            "Style": "WebService",
            "ProductKey": "ISEE1_PWI_SFR-E",
            "Description": "Web service user interface for this product."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Donald Gurnett at University Iowa",
          "Format": [
            "x_Script.IDL",
            "x_Script.Python"
          ],
          "AccessURL": {
            "Name": "CDAWeb Python Script",
            "URL": "https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/ISEE1_PWI_SFR-E/clientLibraryExample/",
            "ProductKey": "ISEE1_PWI_SFR-E",
            "Style": "WebService",
            "Description": "Web service that generates a Python script to access this product."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/SSCWeb. Please also acknowledge the data producer: Donald Gurnett at University Iowa",
          "Format": [
            "HTML"
          ],
          "AccessURL": {
            "Name": "4D Orbit Viewer",
            "URL": "https://sscweb.gsfc.nasa.gov/4dorbit/?sc=ISEE1_PWI_SFR-E",
            "ProductKey": "ISEE1_PWI_SFR-E",
            "Style": "x_Visualization",
            "Description": "Web Service to this product."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Donald Gurnett at University Iowa",
          "Format": [
            "CSV",
            "JSON",
            "Binary"
          ],
          "AccessURL": {
            "Name": "CDAWeb HAPI Server",
            "URL": "https://hapi-server.org/servers/#server=CDAWeb&dataset=ISEE1_PWI_SFR-E",
            "Style": "HAPI",
            "ProductKey": "ISEE1_PWI_SFR-E",
            "Description": "Web Service to this product using the HAPI interface."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Donald Gurnett at University Iowa",
          "Format": [
            "x_Script.IDL",
            "x_Script.Javascript",
            "x_Script.MATLAB",
            "x_Script.Python",
            "x_Script.Autoplot",
            "x_Script.curl",
            "x_Script.wget"
          ],
          "AccessURL": {
            "Name": "CDAWeb HAPI Script in Multiple Languages",
            "URL": "https://hapi-server.org/servers/#server=CDAWeb&dataset=ISEE1_PWI_SFR-E&return=script",
            "Style": "HAPI",
            "ProductKey": "ISEE1_PWI_SFR-E",
            "Description": "Web Service user interface that generates scripts in IDL, Javascript, MATLAB, Python, Autoplot, curl, wget to access this product. See https://hapi-server.org/servers/api for the API."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Donald Gurnett at University Iowa",
          "Format": [
            "PNG",
            "PDF",
            "SVG"
          ],
          "AccessURL": {
            "Name": "HAPI visualizations",
            "URL": "https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=ISEE1_PWI_SFR-E&format=gallery",
            "Style": "x_Visualization",
            "ProductKey": "ISEE1_PWI_SFR-E",
            "Description": "Web Service that generates plots. See https://hapi-server.org/plot/ for the API."
          }
        }
      ],
      "_AccessInformation": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "1977-10-22T21:40:38Z",
          "StopDate": "1987-09-26T04:43:49Z"
        },
        "_TemporalDescription": "Generated from all.xml/@timerange_start and all.xml/@timerange_stop",
        "Cadence": "PT31.985S",
        "_Cadence": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/isee/isee1/waves_pwi/sfr-e_pwi/1977/isee1_pwi_sfr-e_19771022_v01.cdf. The most common cadence, 31985000000 [ns] = PT31.985S, occurred for 36.3636% of the 24 timesteps. "
      },
      "Keyword": [
        "International Sun-Earth Explorer 1 (from all.xml/observatory/description/@short)",
        "Plasma Wave Instrument (from all.xml/instrument/description/@short)",
        "Space Physics (from Master/CDFglobalAttributes/Discipline)",
        "Magnetospheric Science (from Master/CDFglobalAttributes/Discipline)",
        "ISEE-1 (from Master/CDFglobalAttributes/Source_name)",
        "International Sun-Earth Explorer 1 (from Master/CDFglobalAttributes/Source_name)",
        "SFR-E (from Master/CDFglobalAttributes/Data_type)",
        "Sweep Frequency Receiver (from Master/CDFglobalAttributes/Data_type)",
        "PWI (from all.xml/instrument/@ID)"
      ],
      "ObservedRegion": [
        "Earth.Magnetosphere",
        "Earth.Magnetosheath",
        "Heliosphere.NearEarth"
      ],
      "_ObservedRegion": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ObservedRegion.json",
      "ProcessingLevel": null,
      "_ProcessingLevel": "Processing level is not available in the master file; it should be there instead of, say, https://github.com/rweigel/cdawmeta-spase/blob/main/ProcessingLevel.json",
      "InstrumentID": "spase://SMWG/Instrument/ISEE1/PWE",
      "MeasurementType": [
        "Waves.Passive",
        "Spectrum"
      ],
      "Parameter2": [
        {
          "Name": "Epoch",
          "ParameterKey": "Epoch",
          "Description": "CATDESC: 'Event time for the start of the sweep'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.'",
          "Units": "ms",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "SFR E Spectra",
          "ParameterKey": "E_Spectra",
          "Description": "Master CDF CATDESC: 'Spin Plane E-Field Spectra, 104 Hz to 347 kHz'. Master CDF VAR_NOTES: 'These data are collected primarily via the fine wire electric dipole antenna which had a tip to tip length of 215 meters.  A small fraction of the data, less that 0.5%, in this variable were collected via the Eu and Es antennas.  See the 'Eu_Sensor' variable to distinguish the input sources if needed.  The Eu and Ev antennas ware shared with the Heppner DC electric-field experiment.  Consult the 'Quality_Flag' variable for issues regarding E_Spectra values.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "V^2 m^-2 Hz^-1",
          "FillValue": -1.0,
          "Structure": {
            "Size": [
              128
            ]
          }
        },
        {
          "Name": "SFR Eu Sensor",
          "ParameterKey": "Eu_Sensor",
          "Description": "Master CDF CATDESC: ''. Master CDF VAR_NOTES: 'The ISEE-1 PWI SFR may be connected to one of 4 different input sources, the Eu, Ev, and Es antennas, as well as the Bz search coil.  Data collected via the Bz antenna are provided in a separate file.  Since the Es antenna was used to provide less that 0.01% of the electric wave measurements and since Es data exhibit a very low sensitivity range, these have been dropped from the CDF archive.  This leaves only Eu, or Ev data in the E_spectra variable.  The Ev antenna was connected to the SFR 98.3% of the time, while the Eu antenna was utilized less than 0.5% of the time.  If the Eu antenna contributed any of the measurements for a sweep then the 'Eu_Sensor' flag is set to 1.  If not this flag reads 0.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": " ",
          "FillValue": -1
        },
        {
          "Name": "Data Quality Flags",
          "ParameterKey": "Quality_Flag",
          "Description": "Master CDF CATDESC: 'Integer combining all E-antenna data quality flags, 0 = no issues detected'. Master CDF VAR_NOTES: 'A bitwise OR'ing of all known issue values for this record.  The following issue values are defined: (0x4: MOZER) if this flag is present then the Quasi-static Electric Fields instrument (F. S. Mozer) is performing a bias sweep, (0x8: HARVEY) identifies possible interference that occurs when the Plasma Density instrument (C. C. Harvey) injects signals on either of the long electric dipole antennas. '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": " ",
          "FillValue": -1,
          "Structure": {
            "Size": [
              128
            ]
          }
        },
        {
          "Name": "HighRate Flag",
          "ParameterKey": "High_Rate",
          "Description": "Master CDF CATDESC: 'When set to 1 PWI is in 4x sample rate mode'. Master CDF VAR_NOTES: 'ISEE-1 Could operate in two telemetry modes, called 'low bit rate' and 'high bit rate'.  Low bit rate was more common.  During low-bit rate the SFR outputs were sampled once per second.  In high bit rate mode sampling was preformed 4 times per second.  In either case the SFR center frequencies were only changed 1/second.  This means that an entire sweep always requires 32 seconds to preform.  To keep records consistent across both telemetry modes, in this data set 4 samples taken at a single frequency over the same second are averaged together during high rate telemetry operations.  When this flag = 1 each data point is a 4-sample average, when set to0 each data point represents a single A/D conversion on-board ISEE-1'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": " ",
          "FillValue": -1
        }
      ]
    }
  }
}