{
  "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/l4_k0_mpa_00000000_v01.json (from all.xml)",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/LANL/1994/MPA/PT86S",
      "_ResourceID": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json",
      "ResourceHeader": {
        "ResourceName": "LANL 1994 Magnetospheric Plasma Analyzer Key Parameters",
        "_ResourceName": "Source: Master/CDFglobalAttributes/Logical_source_description",
        "AlternateName": "l4_k0_mpa",
        "_AlternateName": "Source: Master/CDFglobalAttributes/Logical_source",
        "Description": "This file contains numerical moments computed from measurements of the Los Alamos Magnetospheric Plasma Analyzer (MPA) [Bame et al., Rev. Sci. Inst., in press 1993]. The moments are presented in s/c coordinates: the z-axis is aligned with the spin axis, which points radially toward the center of the Earth; the x-axis is in the plane containing the spacecraft spin axis and the spin axis of the Earth, with +X generally northward; and the y-axis points generally eastward. Polar angles are measured relative to the spin axis (+Z), and azimuthal angles are measured around the z-axis, with zero along the +X direction. The moments are computed for three 'species': lop (low-ener. ions, ~1eV/e-~130eV/e); hip (hi-ener. ions, ~130eV/e-~45keV/e); alle (electrons, ~30eV - ~45keV ). The electron measurements are obtained 21.5 secs after the ion measurements. Epoch is the measurement time appropriate for the ions. The moments are computed after the fluxes are corrected for background and s/c potential. Algorithms for these corrections are relatively unsophisticated, so the moments are suspect during times of high background and/or high spacecraft potential. Because the determined  spacecraft potential is not very precise, the magnitude of the low-energy ion flow velocity is probably not accurate, but the flow direction is well determined.  Tperp and Tpara are obtained from diagonalization of the  3-dimensional temperature matrix, with the parallel direction assigned to the eigenvalue which is most different from the other two. The corresponding eigenvector is the symmetry axis of the distribution and should be equivalent to the magnetic field direction. The eigenvalue ratio Tperp/Tmid, which is provided for each species, is a measure of the symmetry of the distribution and should be ~1.0 for a good determination. Several of  the parameters have a fairly high daily dynamic range and for survey purposes are best displayed logarithmically. These parameters are indicated by  non-zero 'SCALEMIN' values in this file. A quality flag value of 1  indicates that the values are  preliminary and have not been checked in detail. ",
        "_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://cdaweb.gsfc.nasa.gov/Recent_LANL_Data.html",
            "Name": "Accessing more recent LANL SOPA and MPA data",
            "Description": " ",
            "_Note": "URL also in all.xml. Using master."
          },
          {
            "URL": "https://www.ncei.noaa.gov/products/space-weather/partners/lanl-products-data",
            "Name": "overview",
            "Description": "LANL products and data",
            "_Note": "URL also in all.xml. Using master."
          },
          {
            "Name": "Los Alamos National Laboratory Spacecraft Magnetospheric Plasma Analyzer",
            "URL": " https://doi.org/10.1029/93JA00726",
            "Description": "Journal of Geophysical Research article on the LANL MPA instrument.",
            "_Note": "Source: InformationURL.json"
          }
        ]
      },
      "ProviderResourceName": "LANL MPA 1994-084",
      "DOI": "https://doi.org/10.48322/8y0b-0s77",
      "_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: Mike Henderson at LANL",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "HTTPS from SPDF",
            "URL": "https://cdaweb.gsfc.nasa.gov/pub/data/lanl/94_mpa",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "l4_k0_mpa_%Y%m%d_%Q.cdf",
            "AccessDirectoryTemplate": "%Y",
            "ProductKey": "L4_K0_MPA"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Mike Henderson at LANL",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "FTPS from SPDF",
            "URL": "ftps://cdaweb.gsfc.nasa.gov/pub/data/lanl/94_mpa",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "l4_k0_mpa_%Y%m%d_%Q.cdf",
            "AccessDirectoryTemplate": "%Y",
            "ProductKey": "L4_K0_MPA"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Mike Henderson at LANL",
          "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": "L4_K0_MPA"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Mike Henderson at LANL",
          "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=L4_K0_MPA",
            "Style": "WebService",
            "ProductKey": "L4_K0_MPA",
            "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: Mike Henderson at LANL",
          "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/L4_K0_MPA/clientLibraryExample/",
            "ProductKey": "L4_K0_MPA",
            "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: Mike Henderson at LANL",
          "Format": [
            "HTML"
          ],
          "AccessURL": {
            "Name": "4D Orbit Viewer",
            "URL": "https://sscweb.gsfc.nasa.gov/4dorbit/?sc=L4_K0_MPA",
            "ProductKey": "L4_K0_MPA",
            "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: Mike Henderson at LANL",
          "Format": [
            "CSV",
            "JSON",
            "Binary"
          ],
          "AccessURL": {
            "Name": "CDAWeb HAPI Server",
            "URL": "https://hapi-server.org/servers/#server=CDAWeb&dataset=L4_K0_MPA",
            "Style": "HAPI",
            "ProductKey": "L4_K0_MPA",
            "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: Mike Henderson at LANL",
          "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=L4_K0_MPA&return=script",
            "Style": "HAPI",
            "ProductKey": "L4_K0_MPA",
            "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: Mike Henderson at LANL",
          "Format": [
            "PNG",
            "PDF",
            "SVG"
          ],
          "AccessURL": {
            "Name": "HAPI visualizations",
            "URL": "https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=L4_K0_MPA&format=gallery",
            "Style": "x_Visualization",
            "ProductKey": "L4_K0_MPA",
            "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": "1996-01-01T00:01:40Z",
          "StopDate": "2008-01-03T02:25:58Z"
        },
        "_TemporalDescription": "Generated from all.xml/@timerange_start and all.xml/@timerange_stop",
        "Cadence": "PT1M26.016S",
        "_Cadence": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/lanl/94_mpa/1996/l4_k0_mpa_19960101_v03.cdf. The most common cadence, 86016 [ms] = PT1M26.016S, occurred for 75.1788% of the 736 timesteps. "
      },
      "Keyword": [
        "Los Alamos National Laboratory 1994 (from all.xml/observatory/description/@short)",
        "Magnetospheric plasma analyzer (from all.xml/instrument/description/@short)",
        "Space Physics (from Master/CDFglobalAttributes/Discipline)",
        "Magnetospheric Science (from Master/CDFglobalAttributes/Discipline)",
        "Lanl1994_084 (from Master/CDFglobalAttributes/Source_name)",
        "Los Alamos National Laboratory 1994 (from Master/CDFglobalAttributes/Source_name)",
        "K0 (from Master/CDFglobalAttributes/Data_type)",
        "Key Parameter (from Master/CDFglobalAttributes/Data_type)",
        "MPA (from all.xml/instrument/@ID)"
      ],
      "ObservedRegion": [
        "Earth.Magnetosphere.Main",
        "Earth.Magnetosphere.RadiationBelt",
        "Earth.NearSurface.Plasmasphere"
      ],
      "_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/LANL/1994/MPA",
      "MeasurementType": "EnergeticParticles",
      "Parameter2": [
        {
          "Name": "Time",
          "ParameterKey": "Epoch",
          "Description": "CATDESC: 'Time of proton collection (electrons 21.5 seconds later)'. 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": "Time",
          "ParameterKey": "Time_PB5",
          "Description": "Master CDF CATDESC: 'Time of proton collection (electrons 21.5 seconds later)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": [
            "year",
            "day",
            "msec"
          ],
          "FillValue": -2147483648,
          "Structure": {
            "Size": [
              3
            ]
          }
        },
        {
          "Name": "partial density low-E p",
          "ParameterKey": "dens_lop",
          "Description": "Master CDF CATDESC: 'Partial density of low energy ions (1-130 eV/e)'. 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": "velocity vector low-E p",
          "ParameterKey": "vel_lop",
          "Description": "Master CDF CATDESC: 'Velocity, 3 comp. in s/c coord., of low energy ions (1-130 eV/e)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "km/sec",
          "FillValue": -1e+31,
          "Structure": {
            "Size": [
              3
            ]
          }
        },
        {
          "Name": "partial density high-E e",
          "ParameterKey": "dens_hip",
          "Description": "Master CDF CATDESC: 'Partial density of high energy ions (.13-45 keV/e)'. 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": "temperature high-E p",
          "ParameterKey": "temp_hip",
          "Description": "Master CDF CATDESC: 'Temperatures, parallel & perp. for high energy ions (.13-45 keV/e)'. 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": [
              2
            ]
          }
        },
        {
          "Name": "polar,azim ang high-E p symm axis",
          "ParameterKey": "theta_phi_hip",
          "Description": "Master CDF CATDESC: 'Proton symmetry axis: polar ang. relative to Earth direction, azim. ang. from north'. 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+31,
          "Structure": {
            "Size": [
              2
            ]
          }
        },
        {
          "Name": "Ratio of temperature eigenvalue for high-E p",
          "ParameterKey": "tratio_hip",
          "Description": "Master CDF CATDESC: 'Ratio Tperp/Tmid for high energy ions, (.13-45 keV/e)'. 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+31
        },
        {
          "Name": "partial density electrons",
          "ParameterKey": "dens_e",
          "Description": "Master CDF CATDESC: 'Partial density of electrons (.03-45 keV/q)'. 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": "temperature electrons",
          "ParameterKey": "temp_e",
          "Description": "Master CDF CATDESC: 'Temperatures, parallel & perp. for electrons (.03-45 keV/q)'. 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": [
              2
            ]
          }
        },
        {
          "Name": "polar,azim ang e symm axis",
          "ParameterKey": "theta_phi_e",
          "Description": "Master CDF CATDESC: 'Electron symmetry axis: polar ang. relative to Earth direction azim. ang. from north'. 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+31,
          "Structure": {
            "Size": [
              2
            ]
          }
        },
        {
          "Name": "Ratio of temperature eigenvalues for electrons",
          "ParameterKey": "tratio_e",
          "Description": "Master CDF CATDESC: 'Ratio Tperp/Tmid for electrons (.03-45 keV/q)'. 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+31
        },
        {
          "Name": "spacecraft potential",
          "ParameterKey": "sc_pot",
          "Description": "Master CDF CATDESC: 'Spacecraft potential'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "volts",
          "FillValue": -1e+31
        },
        {
          "Name": "background count rate",
          "ParameterKey": "bkgd",
          "Description": "Master CDF CATDESC: 'Background count rate'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "cts/9ms",
          "FillValue": -1e+31
        },
        {
          "Name": "S/C position, Polar Geographic coordinates",
          "ParameterKey": "sc_pos_geo",
          "Description": "Master CDF CATDESC: 'S/C position, Geographic coordinates (radius,lat,long)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": [
            "earth radii",
            "deg",
            "deg"
          ],
          "FillValue": -1e+31,
          "Structure": {
            "Size": [
              3
            ]
          }
        },
        {
          "Name": "S/C position polar magnetic coordinates",
          "ParameterKey": "sc_pos_mag",
          "Description": "Master CDF CATDESC: 'S/C position, Magnetic coordinates (radius,mlat,mlt)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": [
            "earth radii",
            "deg",
            "hours"
          ],
          "FillValue": -1e+31,
          "Structure": {
            "Size": [
              3
            ]
          }
        },
        {
          "Name": "data qual flag",
          "ParameterKey": "qual_flag",
          "Description": "Master CDF CATDESC: 'Data quality flag, 0 = ok, 1 = Results preliminary'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": " ",
          "FillValue": -2147483648
        },
        {
          "Name": "data gap flag",
          "ParameterKey": "gap_flag",
          "Description": "Master CDF CATDESC: 'Data gap flag, 0 = No Gap, 10 = No data available'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": " ",
          "FillValue": -2147483648
        },
        {
          "Name": "Time offset for electron measurements",
          "ParameterKey": "offset_time",
          "Description": "Master CDF CATDESC: 'Time offset for electron measurements, electron time 21.5 seconds after that of ions'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "ms",
          "FillValue": -1e+31
        },
        {
          "Name": "S/C position, Cartesian GCI coordinates",
          "ParameterKey": "sc_pos_syngci",
          "Description": "Master CDF CATDESC: '[SPECIALIZED USE ONLY] [Computed 3-min vector] S/C position, GCI coordinates (X, Y, Z)'. Master CDF VAR_NOTES: 'This is a virtual variable generated by read_myCDF w/ useof the data in the sc_pos_geo variable and a conversion routinespecified in the function attribute, namely conv_pos'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": [
            "Re",
            "Re",
            "Re"
          ],
          "FillValue": -1e+31,
          "Structure": {
            "Size": [
              3
            ]
          }
        },
        {
          "Name": "S/C position, Cartesian GEO coordinates",
          "ParameterKey": "sc_pos_syngeo",
          "Description": "Master CDF CATDESC: '[SPECIALIZED USE ONLY] [Computed 3-min vector] S/C position, GEO coordinates (Radius, Lat, Lon)'. Master CDF VAR_NOTES: 'This is a virtual variable generated by read_myCDF w/ useof the data in the sc_pos_geo variable and a conversion routinespecified in the function attribute, namely conv_pos'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": [
            "earth radii",
            "deg",
            "deg"
          ],
          "FillValue": -1e+31,
          "Structure": {
            "Size": [
              3
            ]
          }
        }
      ]
    }
  }
}