{
  "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/im_electron_density_rpi_00000000_v01.json (from all.xml)",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/IMAGE/RPI/PT1M",
      "_ResourceID": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json",
      "ResourceHeader": {
        "ResourceName": "IMAGE RPI electron density along the spacecraft orbit, IMAGE Radio Plasma Imager (RPI)",
        "_ResourceName": "Source: Master/CDFglobalAttributes/Logical_source_description",
        "AlternateName": "im_electron_density_rpi",
        "_AlternateName": "Source: Master/CDFglobalAttributes/Logical_source",
        "Description": "The electron density values listed in this file are derived from the IMAGE Radio Plasma Imager (B.W. Reinisch, PI) data using an automatic fitting program written by Phillip Webb with manual correction.The electron number densities were produced using an automated procedure (with manual correction when necessary) which attempted to self-consistently fit an enhancement in the IMAGE RPI Dynamic Spectra to either 1) the Upper Hybrid Resonance band, 2) the Z-mode or 3) the continuum edge. The automatic algorithm works by rules determined by comparison of the active and passive RPI data [Benson et al., GRL, vol. 31, L20803, doi:10.1029/2004GL020847, 2004].The manual data points are not from frequencies chosen freely by a human. Rather the human specifies that the computer should search for a peak or continuum edge in a certain frequency region. Thus even the manual points are determined, in part, by the automatic algorithms. Of course that does not guarantee that the data points are right, but it does eliminate some human bias.For a more detailed description see http://ulcar.uml.edu/rpi.html.",
        "_Description": "Source: Master/CDFglobalAttributes/TEXT",
        "Acknowledgement": "Please acknowledge CDAWeb/SPDF, Phillip Webb, Yongli Wang, Bodo Reinisch and Richard Denton.",
        "_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": [
          {
            "URL": "http://image.gsfc.nasa.gov",
            "Name": "Science Center",
            "Description": "IMAGE",
            "_Note": "URL also in all.xml. Using master."
          },
          {
            "URL": "http://image.gsfc.nasa.gov/rpi/rpi_spec_cdf.html",
            "Name": "Program Specifications",
            "Description": "Description of the ",
            "_Note": "URL also in all.xml. Using master."
          },
          {
            "URL": "http://ulcar.uml.edu/rpi.html",
            "Name": "this web page.",
            "Description": "For a more detailed description see ",
            "_Note": "URL also in all.xml. Using master."
          },
          {
            "Name": "IMAGE RPI Instrument Page",
            "URL": "https://image.gsfc.nasa.gov/rpi/",
            "Description": "IMAGE RPI Instrument page maintained by NASA GSFC with RPI facts, description, team, data, documents, discoveries, and related links sections",
            "Language": "en",
            "_Note": "Source: InformationURL.json"
          },
          {
            "Name": "IMAGE RPI Instrument Page at UML",
            "URL": "https://ulcar.uml.edu/rpi.html",
            "Description": "IMAGE RPI Instrument page maintained by University of Massachusetts Lowell with RPI description, team, software downloads, software user guides, access to CORPRAL automated prospecting results, mission planning tools and commanding guide, data model descriptions for Level 0 and 1, sonification files of 2003 Halloween storm, and useful links",
            "Language": "en",
            "_Note": "Source: InformationURL.json"
          },
          {
            "Name": "IMAGE RPI Anywhere Download Page",
            "URL": "https://ulcar.uml.edu/Installation/BinBrowser/install.htm",
            "Description": "RPIAnywhere software download page, including BinBrowser (RPI data analysis tool) and EdRPI (RPI mission planning tool)",
            "Language": "en",
            "_Note": "Source: InformationURL.json"
          }
        ]
      },
      "Caveats": "This data file is a work in progress, and may be modified later. Be warned that the electron density values inferred from the continuum edge are especially tentative.",
      "_Caveats": "Source: Master/CDFglobalAttributes/Rules_of_use",
      "DOI": "https://doi.org/10.48322/awms-1e38",
      "_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: R. E. Denton & B.W. Reinisch at Dartmouth, UMLCAR",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "HTTPS from SPDF",
            "URL": "https://cdaweb.gsfc.nasa.gov/pub/data/image/rpi/rpi_Ne_fp_along_orbit/rpi_electron_density_CDF",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "im_electron_density_rpi_%Y%m%d_%Q.cdf",
            "AccessDirectoryTemplate": "%Y",
            "ProductKey": "IM_ELECTRON_DENSITY_RPI"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: R. E. Denton & B.W. Reinisch at Dartmouth, UMLCAR",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "FTPS from SPDF",
            "URL": "ftps://cdaweb.gsfc.nasa.gov/pub/data/image/rpi/rpi_Ne_fp_along_orbit/rpi_electron_density_CDF",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "im_electron_density_rpi_%Y%m%d_%Q.cdf",
            "AccessDirectoryTemplate": "%Y",
            "ProductKey": "IM_ELECTRON_DENSITY_RPI"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: R. E. Denton & B.W. Reinisch at Dartmouth, UMLCAR",
          "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": "IM_ELECTRON_DENSITY_RPI"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: R. E. Denton & B.W. Reinisch at Dartmouth, UMLCAR",
          "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=IM_ELECTRON_DENSITY_RPI",
            "Style": "WebService",
            "ProductKey": "IM_ELECTRON_DENSITY_RPI",
            "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: R. E. Denton & B.W. Reinisch at Dartmouth, UMLCAR",
          "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/IM_ELECTRON_DENSITY_RPI/clientLibraryExample/",
            "ProductKey": "IM_ELECTRON_DENSITY_RPI",
            "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: R. E. Denton & B.W. Reinisch at Dartmouth, UMLCAR",
          "Format": [
            "HTML"
          ],
          "AccessURL": {
            "Name": "4D Orbit Viewer",
            "URL": "https://sscweb.gsfc.nasa.gov/4dorbit/?sc=IM_ELECTRON_DENSITY_RPI",
            "ProductKey": "IM_ELECTRON_DENSITY_RPI",
            "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: R. E. Denton & B.W. Reinisch at Dartmouth, UMLCAR",
          "Format": [
            "CSV",
            "JSON",
            "Binary"
          ],
          "AccessURL": {
            "Name": "CDAWeb HAPI Server",
            "URL": "https://hapi-server.org/servers/#server=CDAWeb&dataset=IM_ELECTRON_DENSITY_RPI",
            "Style": "HAPI",
            "ProductKey": "IM_ELECTRON_DENSITY_RPI",
            "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: R. E. Denton & B.W. Reinisch at Dartmouth, UMLCAR",
          "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=IM_ELECTRON_DENSITY_RPI&return=script",
            "Style": "HAPI",
            "ProductKey": "IM_ELECTRON_DENSITY_RPI",
            "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: R. E. Denton & B.W. Reinisch at Dartmouth, UMLCAR",
          "Format": [
            "PNG",
            "PDF",
            "SVG"
          ],
          "AccessURL": {
            "Name": "HAPI visualizations",
            "URL": "https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=IM_ELECTRON_DENSITY_RPI&format=gallery",
            "Style": "x_Visualization",
            "ProductKey": "IM_ELECTRON_DENSITY_RPI",
            "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": "2001-01-01T00:06:37Z",
          "StopDate": "2005-12-18T06:45:56Z"
        },
        "_TemporalDescription": "Generated from all.xml/@timerange_start and all.xml/@timerange_stop",
        "Cadence": "PT1M57.995S",
        "_Cadence": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/image/rpi/rpi_Ne_fp_along_orbit/rpi_electron_density_CDF/2001/im_electron_density_rpi_20010101_v01.cdf. The most common cadence, 117995 [ms] = PT1M57.995S, occurred for 4.1527% of the 124 timesteps. "
      },
      "Keyword": [
        "Imager for Magnetopause to Aurora Global Exploration (from all.xml/observatory/description/@short)",
        "Radio Plasma Imager (from all.xml/instrument/description/@short)",
        "Space Physics (from Master/CDFglobalAttributes/Discipline)",
        "Magnetospheric Science (from Master/CDFglobalAttributes/Discipline)",
        "IMAGE (from Master/CDFglobalAttributes/Source_name)",
        "Imager for Magnetopause to Aurora Global Exploration (from Master/CDFglobalAttributes/Source_name)",
        "ELECTRON_PLASMA (from Master/CDFglobalAttributes/Data_type)",
        "Electron Plasma Parameters (from Master/CDFglobalAttributes/Data_type)",
        "RPI (from all.xml/instrument/@ID)"
      ],
      "ObservedRegion": [
        "Earth.Magnetosphere",
        "Earth.NearSurface.AuroralRegion",
        "Earth.NearSurface.Plasmasphere",
        "Heliosphere.Inner",
        "Earth.NearSurface.PolarCap"
      ],
      "_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/IMAGE/RPI",
      "MeasurementType": "Waves.Active",
      "Parameter2": [
        {
          "Name": "Time Line",
          "ParameterKey": "Epoch",
          "Description": "CATDESC: 'Time'. 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": "xsm",
          "ParameterKey": "xsm",
          "Description": "Master CDF CATDESC: 'x satellite position in sm coordinates'. Master CDF VAR_NOTES: 'Satellite location in SM coordinates in Re (1 RE=6378.14 km)'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "Re",
          "FillValue": -1e+30
        },
        {
          "Name": "ysm",
          "ParameterKey": "ysm",
          "Description": "Master CDF CATDESC: 'y satellite position in sm coordinates'. Master CDF VAR_NOTES: 'Satellite location in SM coordinates in Re (1 RE=6378.14 km)'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "Re",
          "FillValue": -1e+30
        },
        {
          "Name": "zsm",
          "ParameterKey": "zsm",
          "Description": "Master CDF CATDESC: 'z satellite position in sm coordinates'. Master CDF VAR_NOTES: 'Satellite location in SM coordinates in Re (1 RE=6378.14 km)'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "Re",
          "FillValue": -1e+30
        },
        {
          "Name": "magnetic local time",
          "ParameterKey": "mlt",
          "Description": "Master CDF CATDESC: 'magnetic local time'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "hours",
          "FillValue": -1e+30
        },
        {
          "Name": "magnetic latitude",
          "ParameterKey": "mlat",
          "Description": "Master CDF CATDESC: 'magnetic latitude'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "deg",
          "FillValue": -1e+30
        },
        {
          "Name": "L-shell",
          "ParameterKey": "L",
          "Description": "Master CDF CATDESC: 'L_dip - L-shell calculated from R and MLAT assuming a dipole magnetic field'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": " ",
          "FillValue": -1e+30
        },
        {
          "Name": "model gyrofrequency",
          "ParameterKey": "fce_model",
          "Description": "Master CDF CATDESC: 'model gyrofrequency'. Master CDF VAR_NOTES: 'Model electron cyclotron frequency in kHz. T96 model is used for the background magnetic field, which requires the solar wind dynamic pressure, IMF Bz, and the DST index as input.If these parameters were not available, default values of solar wind pressure of 2.1 nPa, IMF Bz of 0 nT, and DST of -10 nT were used '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "kHz",
          "FillValue": -1e+30
        },
        {
          "Name": "electron density",
          "ParameterKey": "den",
          "Description": "Master CDF CATDESC: 'electron density'. Master CDF VAR_NOTES: 'The electron number densities were derived from an automated procedure (with manual correction when necessary) which attempted to self-consistently fit an enhancement in the IMAGE RPI Dynamic Spectra to either 1) the Upper Hybrid Resonance band, 2) the Z-mode or 3) the continuum edge.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "1/cm3",
          "FillValue": -1e+30
        },
        {
          "Name": "electron plasma freq",
          "ParameterKey": "fpe",
          "Description": "Master CDF CATDESC: 'Electron plasma frequency from fits'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "kHz",
          "FillValue": -1e+30
        },
        {
          "Name": "day of year",
          "ParameterKey": "doy",
          "Description": "Master CDF CATDESC: 'day of year'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": " ",
          "FillValue": -32767
        },
        {
          "Name": "type",
          "ParameterKey": "type",
          "Description": "Master CDF CATDESC: 'Spectral feature for auto-fit, 1:Upper Hybrid, 2:Z-Mode, 3:Continuum Edge'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": " ",
          "FillValue": -127
        },
        {
          "Name": "num harmonics",
          "ParameterKey": "numHarmonics",
          "Description": "Master CDF CATDESC: 'number of n+1/2 harmonics recognized by automatic routine'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": " ",
          "FillValue": -127
        },
        {
          "Name": "electron cyclotron frequency",
          "ParameterKey": "fce",
          "Description": "Master CDF CATDESC: 'electron cyclotron frequency from the spacing of n+1/2 harmonics'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "kHz",
          "FillValue": -1e+30
        },
        {
          "Name": "st dev fce",
          "ParameterKey": "stdevFCE",
          "Description": "Master CDF CATDESC: 'standard deviation (kHz) of fce_n+1/2 based on individual frequencies'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "kHz",
          "FillValue": -1e+30
        },
        {
          "Name": "corr. flag",
          "ParameterKey": "am",
          "Description": "Master CDF CATDESC: '1: automatic fit, 2: manual fit'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": " ",
          "FillValue": -127
        }
      ]
    }
  }
}