{
  "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/mvn_swi_l2_onboardsvymom_00000000_v01.json (from all.xml)",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/MAVEN/SWIA/Level2/OnboardMoments/Survey/PT4S",
      "_ResourceID": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json",
      "ResourceHeader": {
        "ResourceName": "DERIVED FROM: MAVEN SWIA (Solar Wind Ion Analyzer) Onboard Moment Survey Telemetry",
        "_ResourceName": "Source: Master/CDFglobalAttributes/Logical_source_description",
        "AlternateName": "mvn_swi_l2_onboardsvymom",
        "_AlternateName": "Source: Master/CDFglobalAttributes/Logical_source",
        "Description": "MAVEN SWIA Onboard Moments",
        "_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": [
          {
            "Name": "MAVEN Data Archive at PDS PPI Node",
            "URL": "https://pds-ppi.igpp.ucla.edu/search/?sc=MAVEN&facet=SPACECRAFT_NAME",
            "_Note": "URL also in all.xml, master. Using InformationURL.json."
          },
          {
            "URL": "http://lasp.colorado.edu/home/maven/",
            "Name": "at LASP",
            "Description": "MAVEN home page ",
            "_Note": "URL also in all.xml. Using master."
          },
          {
            "URL": "https://science.nasa.gov/mission/maven",
            "Name": "at NASA.gov",
            "Description": "MAVEN home page ",
            "_Note": "URL also in all.xml. Using master."
          },
          {
            "Name": "MAVEN home page at LASP",
            "URL": "https://lasp.colorado.edu/maven/",
            "_Note": "Source: InformationURL.json"
          },
          {
            "Name": "MAVEN home page at NASA.gov",
            "URL": "https://science.nasa.gov/mission/maven/",
            "_Note": "Source: InformationURL.json"
          }
        ]
      },
      "ProviderResourceName": "MAVEN SWIA Onboard Moments",
      "DOI": "https://doi.org/10.17189/1414246",
      "_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: J.S. Halekas at U Iowa",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "HTTPS from SPDF",
            "URL": "https://cdaweb.gsfc.nasa.gov/pub/data/maven/swia/l2/onboardsvymom",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "mvn_swi_l2_onboardsvymom_%Y%m%d_v02_r00.cdf",
            "AccessDirectoryTemplate": "%Y/%m",
            "ProductKey": "MVN_SWI_L2_ONBOARDSVYMOM"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: J.S. Halekas at U Iowa",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "FTPS from SPDF",
            "URL": "ftps://cdaweb.gsfc.nasa.gov/pub/data/maven/swia/l2/onboardsvymom",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "mvn_swi_l2_onboardsvymom_%Y%m%d_v02_r00.cdf",
            "AccessDirectoryTemplate": "%Y/%m",
            "ProductKey": "MVN_SWI_L2_ONBOARDSVYMOM"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: J.S. Halekas at U 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": "MVN_SWI_L2_ONBOARDSVYMOM"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: J.S. Halekas at U 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=MVN_SWI_L2_ONBOARDSVYMOM",
            "Style": "WebService",
            "ProductKey": "MVN_SWI_L2_ONBOARDSVYMOM",
            "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: J.S. Halekas at U 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/MVN_SWI_L2_ONBOARDSVYMOM/clientLibraryExample/",
            "ProductKey": "MVN_SWI_L2_ONBOARDSVYMOM",
            "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: J.S. Halekas at U Iowa",
          "Format": [
            "HTML"
          ],
          "AccessURL": {
            "Name": "4D Orbit Viewer",
            "URL": "https://sscweb.gsfc.nasa.gov/4dorbit/?sc=MVN_SWI_L2_ONBOARDSVYMOM",
            "ProductKey": "MVN_SWI_L2_ONBOARDSVYMOM",
            "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: J.S. Halekas at U Iowa",
          "Format": [
            "CSV",
            "JSON",
            "Binary"
          ],
          "AccessURL": {
            "Name": "CDAWeb HAPI Server",
            "URL": "https://hapi-server.org/servers/#server=CDAWeb&dataset=MVN_SWI_L2_ONBOARDSVYMOM",
            "Style": "HAPI",
            "ProductKey": "MVN_SWI_L2_ONBOARDSVYMOM",
            "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: J.S. Halekas at U 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=MVN_SWI_L2_ONBOARDSVYMOM&return=script",
            "Style": "HAPI",
            "ProductKey": "MVN_SWI_L2_ONBOARDSVYMOM",
            "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: J.S. Halekas at U Iowa",
          "Format": [
            "PNG",
            "PDF",
            "SVG"
          ],
          "AccessURL": {
            "Name": "HAPI visualizations",
            "URL": "https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=MVN_SWI_L2_ONBOARDSVYMOM&format=gallery",
            "Style": "x_Visualization",
            "ProductKey": "MVN_SWI_L2_ONBOARDSVYMOM",
            "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": "2014-03-19T14:19:43Z",
          "StopDate": "2025-12-06T00:00:43Z"
        },
        "_TemporalDescription": "Generated from all.xml/@timerange_start and all.xml/@timerange_stop",
        "Cadence": "PT4S",
        "_Cadence": "Counts based on variable 'epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/maven/swia/l2/onboardsvymom/2014/03/mvn_swi_l2_onboardsvymom_20140319_v02_r00.cdf. The most common cadence, 4000000000 [ns] = PT4S, occurred for 93.7608% of the 8175 timesteps. "
      },
      "Keyword": [
        "Mars Atmosphere and Volatile EvolutioN Mission (from all.xml/observatory/description/@short)",
        "Solar Wind Ion Analyzer (from all.xml/instrument/description/@short)",
        "Planetary Physics (from Master/CDFglobalAttributes/Discipline)",
        "Particles (from Master/CDFglobalAttributes/Discipline)",
        "MAVEN (from Master/CDFglobalAttributes/Source_name)",
        "Mars Atmosphere and Volatile EvolutioN Mission (from Master/CDFglobalAttributes/Source_name)",
        "CAL (from Master/CDFglobalAttributes/Data_type)",
        "Calibrated (from Master/CDFglobalAttributes/Data_type)",
        "SWIA (from all.xml/instrument/@ID)"
      ],
      "ObservedRegion": [
        "Mars"
      ],
      "_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/MAVEN/SWIA",
      "MeasurementType": "ThermalPlasma",
      "Parameter2": [
        {
          "Name": "epoch",
          "ParameterKey": "epoch",
          "Description": "CATDESC: 'Time, start of sample, in TT2000 time base'. 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": "ns",
          "Support": {
            "Qualifier": "Scalar",
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "time_met",
          "ParameterKey": "time_met",
          "Description": "Master CDF CATDESC: 'Time, start of sample, in raw mission elapsed time'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.'",
          "Units": "s",
          "FillValue": -1e+31
        },
        {
          "Name": "time_unix",
          "ParameterKey": "time_unix",
          "Description": "Master CDF CATDESC: 'Time, start of sample, in Unix time'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.'",
          "Units": "s",
          "FillValue": -1e+31
        },
        {
          "Name": "density",
          "ParameterKey": "density",
          "Description": "Master CDF CATDESC: 'Onboard density moment, assuming 100% protons'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.'",
          "Units": "cm^-3",
          "FillValue": -1e+31
        },
        {
          "Name": "pressure (IC)",
          "ParameterKey": "pressure",
          "Description": "Master CDF CATDESC: 'Onboard pressure moment (Inst. Coords), assuming 100% protons'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.'",
          "Units": "eV/cm^-3",
          "FillValue": -1e+31,
          "Structure": {
            "Size": [
              6
            ]
          }
        },
        {
          "Name": "velocity (IC)",
          "ParameterKey": "velocity",
          "Description": "Master CDF CATDESC: 'Onboard velocity moment (Inst. Coords), assuming 100% protons'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.'",
          "Units": "km/s",
          "FillValue": -1e+31,
          "Structure": {
            "Size": [
              3
            ]
          }
        },
        {
          "Name": "velocity_mso",
          "ParameterKey": "velocity_mso",
          "Description": "Master CDF CATDESC: 'Onboard velocity moment (MSO [Mars-Sun Orbit] Coords), assuming 100% protons'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.'",
          "Units": "km/s",
          "FillValue": -1e+31,
          "Structure": {
            "Size": [
              3
            ]
          }
        },
        {
          "Name": "temperature",
          "ParameterKey": "temperature",
          "Description": "Master CDF CATDESC: 'Onboard temperature moment (Inst. Coords), assuming 100% protons'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.'",
          "Units": "eV",
          "FillValue": -1e+31,
          "Structure": {
            "Size": [
              3
            ]
          }
        },
        {
          "Name": "temperature_mso",
          "ParameterKey": "temperature_mso",
          "Description": "Master CDF CATDESC: 'Onboard temperature moment (MSO [Mars-Sun Orbit] Coords), assuming 100% protons'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.'",
          "Units": "eV",
          "FillValue": -1e+31,
          "Structure": {
            "Size": [
              3
            ]
          }
        },
        {
          "Name": "atten_state",
          "ParameterKey": "atten_state",
          "Description": "Master CDF CATDESC: 'Attenuator state, 1 = open, 2 = closed, 3 = cover closed'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.'",
          "FillValue": 255
        },
        {
          "Name": "telem_mode",
          "ParameterKey": "telem_mode",
          "Description": "Master CDF CATDESC: 'Telemetry Mode: 1 = Sheath, 0 = Solar Wind'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.'",
          "FillValue": 255
        },
        {
          "Name": "quality_flag",
          "ParameterKey": "quality_flag",
          "Description": "Master CDF CATDESC: 'Quality Flag: 0 = bad, 1 = good'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.'",
          "FillValue": -1e+31
        },
        {
          "Name": "decom_flag",
          "ParameterKey": "decom_flag",
          "Description": "Master CDF CATDESC: 'Decommutation Flag: 0 = uncertain mode/attenuator flags, 1 = known mode/attenuator flags'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.'",
          "FillValue": -1e+31
        }
      ]
    }
  }
}