{
  "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/endurance_l2_slp_00000000_v01.json (from all.xml)",
    "NumericalData": {
      "ResourceID": null,
      "_ResourceID": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json",
      "ResourceHeader": {
        "ResourceName": "Calibrated L2 thermal plasma measurements from the Sweeping Langmuir Probe (SLP)",
        "_ResourceName": "Source: Master/CDFglobalAttributes/Logical_source_description",
        "AlternateName": "endurance_l2_slp",
        "_AlternateName": "Source: Master/CDFglobalAttributes/Logical_source",
        "Description": "The Endurance SLP was a needle probe mounted on the forward Fo’c’sle of the spacecraft. It measured thermal plasma density, electron temperature, the potential difference between the spacecraft and ambient plasma (plasma potential) and the relative potential of the spacecraft. SLP performed an active (20ms) sweep once every 5 seconds, wherein a sweeping +/- 5V voltage was applied to the needle. The data products here were derived from the I-V curves and intercalibrated with EISCAT Radar and the PES instrument.",
        "_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": "https://doi.org/10.1007/s11214-022-00908-0",
            "Name": "Space Science Review Paper",
            "Description": "Endurance Rocket Mission",
            "_Note": "URL also in all.xml. Using master."
          }
        ]
      },
      "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: A. Barjatya at Embry Riddle Aeronautical University",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "HTTPS from SPDF",
            "URL": "https://cdaweb.gsfc.nasa.gov/pub/data/sounding_rockets/endurance/endurance-2022/cdf",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "endurance_l2_slp_%Y%m%d_%Q.cdf",
            "ProductKey": "ENDURANCE_L2_SLP"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: A. Barjatya at Embry Riddle Aeronautical University",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "FTPS from SPDF",
            "URL": "ftps://cdaweb.gsfc.nasa.gov/pub/data/sounding_rockets/endurance/endurance-2022/cdf",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "endurance_l2_slp_%Y%m%d_%Q.cdf",
            "ProductKey": "ENDURANCE_L2_SLP"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: A. Barjatya at Embry Riddle Aeronautical University",
          "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": "ENDURANCE_L2_SLP"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: A. Barjatya at Embry Riddle Aeronautical University",
          "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=ENDURANCE_L2_SLP",
            "Style": "WebService",
            "ProductKey": "ENDURANCE_L2_SLP",
            "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: A. Barjatya at Embry Riddle Aeronautical University",
          "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/ENDURANCE_L2_SLP/clientLibraryExample/",
            "ProductKey": "ENDURANCE_L2_SLP",
            "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: A. Barjatya at Embry Riddle Aeronautical University",
          "Format": [
            "HTML"
          ],
          "AccessURL": {
            "Name": "4D Orbit Viewer",
            "URL": "https://sscweb.gsfc.nasa.gov/4dorbit/?sc=ENDURANCE_L2_SLP",
            "ProductKey": "ENDURANCE_L2_SLP",
            "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: A. Barjatya at Embry Riddle Aeronautical University",
          "Format": [
            "CSV",
            "JSON",
            "Binary"
          ],
          "AccessURL": {
            "Name": "CDAWeb HAPI Server",
            "URL": "https://hapi-server.org/servers/#server=CDAWeb&dataset=ENDURANCE_L2_SLP",
            "Style": "HAPI",
            "ProductKey": "ENDURANCE_L2_SLP",
            "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: A. Barjatya at Embry Riddle Aeronautical University",
          "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=ENDURANCE_L2_SLP&return=script",
            "Style": "HAPI",
            "ProductKey": "ENDURANCE_L2_SLP",
            "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: A. Barjatya at Embry Riddle Aeronautical University",
          "Format": [
            "PNG",
            "PDF",
            "SVG"
          ],
          "AccessURL": {
            "Name": "HAPI visualizations",
            "URL": "https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=ENDURANCE_L2_SLP&format=gallery",
            "Style": "x_Visualization",
            "ProductKey": "ENDURANCE_L2_SLP",
            "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": "2022-05-11T01:32:49Z",
          "StopDate": "2022-05-11T01:45:14Z"
        },
        "_TemporalDescription": "Generated from all.xml/@timerange_start and all.xml/@timerange_stop",
        "Cadence": "PT5.116S",
        "_Cadence": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/sounding_rockets/endurance/endurance-2022/cdf/endurance_l2_slp_20220511_v01.cdf. The most common cadence, 5116 [ms] = PT5.116S, occurred for 44.2953% of the 66 timesteps. "
      },
      "Keyword": [
        "Endurance (from all.xml/observatory/description/@short)",
        "Swept Langmuir Probe (SLP) Calibrated (L2) Data (from all.xml/instrument/description/@short)",
        "Space Physics (from Master/CDFglobalAttributes/Discipline)",
        "Ionospheric Science (from Master/CDFglobalAttributes/Discipline)",
        "Endurance (from Master/CDFglobalAttributes/Source_name)",
        "L2 (from Master/CDFglobalAttributes/Data_type)",
        "Level 2 (from Master/CDFglobalAttributes/Data_type)",
        "SLP (from all.xml/instrument/@ID)"
      ],
      "ObservedRegion": null,
      "_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": null,
      "MeasurementType": null,
      "Parameter2": [
        {
          "Name": "Time",
          "ParameterKey": "Epoch",
          "Description": "CATDESC: 'Time start of avg interval'. 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": "MET",
          "ParameterKey": "tof",
          "Description": "Master CDF CATDESC: 'Mission elapsed time in seconds'. Master CDF VAR_NOTES: 'Seconds from T-0, where T-0 is defined by ACS Umbi-pull, occurring at 2022-05-11T01:31:00.2207 UT'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "s",
          "FillValue": "NaN"
        },
        {
          "Name": "Alt",
          "ParameterKey": "alt",
          "Description": "Master CDF CATDESC: 'Altitude of Endurance during measurement'. Master CDF VAR_NOTES: 'Altitude measured by onboard GPS'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "km",
          "FillValue": "NaN"
        },
        {
          "Name": "Density",
          "ParameterKey": "slp_ni",
          "Description": "Master CDF CATDESC: 'Thermal Plasma (Electron & Ion) Density in particles per cubic centimeter'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "/m3",
          "FillValue": "NaN"
        },
        {
          "Name": "Error in Density",
          "ParameterKey": "slp_ni_error",
          "Description": "Master CDF CATDESC: 'Error in Plasma Density in particles per cubic centimeter'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "m3",
          "FillValue": "NaN"
        },
        {
          "Name": "Te",
          "ParameterKey": "slp_te",
          "Description": "Master CDF CATDESC: 'Thermal Electron Temperature in Kelvin'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "K",
          "FillValue": "NaN"
        },
        {
          "Name": "Error in Te",
          "ParameterKey": "slp_te_error",
          "Description": "Master CDF CATDESC: 'Thermal Electron Temperature Error in Kelvin'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "k",
          "FillValue": "NaN"
        },
        {
          "Name": "Abs. S/C Pot",
          "ParameterKey": "slp_vsc",
          "Description": "Master CDF CATDESC: 'Absolute potential difference between plasma and Endurance '. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "V",
          "FillValue": "NaN"
        },
        {
          "Name": "Abs. S/C Pot Err.",
          "ParameterKey": "slp_vsc_error",
          "Description": "Master CDF CATDESC: 'Plasma potential error in Volts'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "V",
          "FillValue": "NaN"
        }
      ]
    }
  }
}