{
  "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/iss_sp_fpmu_00000000_v01.json (from all.xml)",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/ISS/FPMU/PT1S",
      "_ResourceID": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json",
      "ResourceHeader": {
        "ResourceName": "ISS FPMU 1-sec Summary Plasma Densities, Temperatures, Spacecraft Potentials.",
        "_ResourceName": "Source: Master/CDFglobalAttributes/Logical_source_description",
        "AlternateName": "iss_sp_fpmu",
        "_AlternateName": "Source: Master/CDFglobalAttributes/Logical_source",
        "Description": "ISS FPMU Summary Ionosphere Wide Langmuir Probe (WLP) density and temperature records, Floating Potential Probe (FPP) spacecraft potential records.",
        "_Description": "Source: Master/CDFglobalAttributes/TEXT",
        "Acknowledgement": "Space Environments, NASA Johnson Space Center",
        "_Acknowledgement": "Source: Master/CDFglobalAttributes/Acknowledgement",
        "_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": [
          {
            "Name": "Floating Potential Measurement Unit, FPMU, Home Page, SDL, USU",
            "URL": "http://www.sdl.usu.edu/programs/fpmu",
            "Description": "Floating Potential Measurement Unit, FPMU, Home Page, Space Dynamics Laboratory, Utah State University, per NASA Policy Directive 2200.1B, Section 1.a.5",
            "_Note": "Source: InformationURL.json"
          }
        ]
      },
      "Caveats": "Contact Emily Willis for support and use.  Emily.Willis@nasa.gov",
      "_Caveats": "Source: Master/CDFglobalAttributes/Rules_of_use",
      "DOI": null,
      "_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: E. Willis at NASA Marshall Space Flight Center",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "HTTPS from SPDF",
            "URL": "https://cdaweb.gsfc.nasa.gov/pub/data/international_space_station_iss/sp_fpmu",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "iss_sp_fpmu_%Y%m%d_%Q.cdf",
            "AccessDirectoryTemplate": "%Y",
            "ProductKey": "ISS_SP_FPMU"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: E. Willis at NASA Marshall Space Flight Center",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "FTPS from SPDF",
            "URL": "ftps://cdaweb.gsfc.nasa.gov/pub/data/international_space_station_iss/sp_fpmu",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "iss_sp_fpmu_%Y%m%d_%Q.cdf",
            "AccessDirectoryTemplate": "%Y",
            "ProductKey": "ISS_SP_FPMU"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: E. Willis at NASA Marshall Space Flight Center",
          "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": "ISS_SP_FPMU"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: E. Willis at NASA Marshall Space Flight Center",
          "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=ISS_SP_FPMU",
            "Style": "WebService",
            "ProductKey": "ISS_SP_FPMU",
            "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: E. Willis at NASA Marshall Space Flight Center",
          "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/ISS_SP_FPMU/clientLibraryExample/",
            "ProductKey": "ISS_SP_FPMU",
            "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: E. Willis at NASA Marshall Space Flight Center",
          "Format": [
            "HTML"
          ],
          "AccessURL": {
            "Name": "4D Orbit Viewer",
            "URL": "https://sscweb.gsfc.nasa.gov/4dorbit/?sc=ISS_SP_FPMU",
            "ProductKey": "ISS_SP_FPMU",
            "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: E. Willis at NASA Marshall Space Flight Center",
          "Format": [
            "CSV",
            "JSON",
            "Binary"
          ],
          "AccessURL": {
            "Name": "CDAWeb HAPI Server",
            "URL": "https://hapi-server.org/servers/#server=CDAWeb&dataset=ISS_SP_FPMU",
            "Style": "HAPI",
            "ProductKey": "ISS_SP_FPMU",
            "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: E. Willis at NASA Marshall Space Flight Center",
          "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=ISS_SP_FPMU&return=script",
            "Style": "HAPI",
            "ProductKey": "ISS_SP_FPMU",
            "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: E. Willis at NASA Marshall Space Flight Center",
          "Format": [
            "PNG",
            "PDF",
            "SVG"
          ],
          "AccessURL": {
            "Name": "HAPI visualizations",
            "URL": "https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=ISS_SP_FPMU&format=gallery",
            "Style": "x_Visualization",
            "ProductKey": "ISS_SP_FPMU",
            "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": "2006-08-03T16:08:07Z",
          "StopDate": "2020-09-14T18:00:58Z"
        },
        "_TemporalDescription": "Generated from all.xml/@timerange_start and all.xml/@timerange_stop",
        "Cadence": "PT1S",
        "_Cadence": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/iss/sp_fpmu/2006/iss_sp_fpmu_20060803_v02.cdf. The most common cadence, 1000 [ms] = PT1S, occurred for 65.0054% of the 2387 timesteps. "
      },
      "Keyword": [
        "International Space Station (from all.xml/observatory/description/@short)",
        "Floating Potential Measurement Unit (from all.xml/instrument/description/@short)",
        "Space Physics (from Master/CDFglobalAttributes/Discipline)",
        "Ionospheric Science (from Master/CDFglobalAttributes/Discipline)",
        "ISS (from Master/CDFglobalAttributes/Source_name)",
        "International Space Station (from Master/CDFglobalAttributes/Source_name)",
        "SP (from Master/CDFglobalAttributes/Data_type)",
        "Summary Parameter (from Master/CDFglobalAttributes/Data_type)",
        "FPMU (from all.xml/instrument/@ID)"
      ],
      "ObservedRegion": [
        "Earth.NearSurface.Ionosphere.FRegion",
        "Earth.NearSurface.Thermosphere"
      ],
      "_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/ISS/FPMU",
      "MeasurementType": "ThermalPlasma",
      "Parameter2": [
        {
          "Name": "Epoch",
          "ParameterKey": "Epoch",
          "Description": "CATDESC: 'Time (UT)'. 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": "UT",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Latitude",
          "ParameterKey": "Latitude",
          "Description": "Master CDF CATDESC: 'Latitude'. Master CDF VAR_NOTES: 'Geodetic Latitude '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "deg",
          "FillValue": -1e+31
        },
        {
          "Name": "Longitude",
          "ParameterKey": "Longitude",
          "Description": "Master CDF CATDESC: 'Longitude'. Master CDF VAR_NOTES: 'Geodetic Longitude'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "deg",
          "FillValue": -1e+31
        },
        {
          "Name": "Altitude",
          "ParameterKey": "Altitude",
          "Description": "Master CDF CATDESC: 'Altitude'. Master CDF VAR_NOTES: 'Geodetic Altitude'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "km",
          "FillValue": -1e+31
        },
        {
          "Name": "Electron Temperature",
          "ParameterKey": "T_e",
          "Description": "Master CDF CATDESC: 'Electron Temperature'. Master CDF VAR_NOTES: 'Electron temperature derived from FPMU Wide Langmuir Probe. '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "K",
          "FillValue": -1e+31
        },
        {
          "Name": "Ion Density",
          "ParameterKey": "N_i",
          "Description": "Master CDF CATDESC: 'Total Ion Density'. Master CDF VAR_NOTES: 'Total Ion density derived from FPMU Wide Langmuir Probe's ion saturation region.  If quasi-neutrality can be assumed, this value should be approximate to the electron density.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "m-3",
          "FillValue": -1e+31
        },
        {
          "Name": "Oxygen Ion Percent",
          "ParameterKey": "Oxygen_Ion_Percent",
          "Description": "Master CDF CATDESC: 'Ratio of O+/Total Ion Density'. Master CDF VAR_NOTES: 'O+/Total Ion Density Ratio.  Secondary variable derived from the FPMU Wide Langmuir Probe ion saturation region. The ratio of  O+ ions to the total ion density.  Assumes that the ionospheric plasma at the ISS altitudes is made up of only two species H+ and O+.  See Debchoudhury et. al., JGR, 2021 for details.   '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "%",
          "FillValue": -1e+31
        },
        {
          "Name": "Spacecraft Potential",
          "ParameterKey": "Spacecraft_Potential",
          "Description": "Master CDF CATDESC: 'Spacecraft Potential'. Master CDF VAR_NOTES: 'The floating potential derived from FPMU Floating Potential Probe.  The value is the potential of the spacecraft relative to the plasma.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "V",
          "FillValue": -1e+31
        },
        {
          "Name": "Spacecraft Potential Uncertainty",
          "ParameterKey": "Spacecraft_Potential_Uncertainty",
          "Description": "Master CDF CATDESC: 'Spacecraft Potential Uncertainty'. Master CDF VAR_NOTES: 'Uncertainty between the WLP spacecraft potential and the FPP spacecraft potential.   |WLP SP - FPP SP|'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "V",
          "FillValue": -1e+31
        },
        {
          "Name": "Sunlight Illumination",
          "ParameterKey": "Sunlight",
          "Description": "Master CDF CATDESC: 'Sunlight Illuminiation'. Master CDF VAR_NOTES: 'Percent of solar Intensity (0 or 100%) with no correction for atmospheric refraction.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "%",
          "FillValue": -1e+31
        },
        {
          "Name": "Time Code Flag",
          "ParameterKey": "TCC",
          "Description": "Master CDF CATDESC: 'Time Code Flag'. Master CDF VAR_NOTES: 'Flag indicating time code was correct in original file (0) or a corrupt time code was corrected during processing (1)'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "\u0000",
          "FillValue": -128
        }
      ]
    }
  }
}