{
  "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/rs_k0_ipei_00000000_v01.json (from all.xml)",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/ROCSAT-1/IPEI/PT1s",
      "_ResourceID": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json",
      "ResourceHeader": {
        "ResourceName": "ROCSAT-1(FORMOSAT-1)/IPEI, Key Parameters",
        "_ResourceName": "Source: Master/CDFglobalAttributes/Logical_source_description",
        "AlternateName": "RS_K0_IPEI",
        "_AlternateName": "Source: Master/CDFglobalAttributes/Logical_source",
        "Description": "1-second averaged data***Important Notes*** on Accuracy of VperpM_MF (meridional),VperpZ_MF (zonal), and VparaMF (parallel) components.Geophysical flow components VperpM_MF, VperpZ_MF, and VparaMF are converted from flow velocities, Vx, Vy, and Vz measured in the S/C coordinate system. Vx points along the S/C trajectory vector, Vz is in the nadir direction, and Vy points to the right of the S/C trajectory vector (in the anti-angular momentum direction).1) Vx, Vy, and Vz are measured flow velocities at S/C coordinate in the Earth-centered Inertia Coordinate System (non-rotating) (ECI coordinate).2) VperZ_MF, VperM_MF, and VparaMF are geophysical flows in the Earth-centered Fixed Coordinated System (rotate with the Earth) (ECF coordinate).3) Uncertainty of +-(37.8-75.45) m/s in Vx based on 0.5% - 1% error in fitting could be introduced to all geophysical flow components.4) VperpM_MF at low latitude is almost identical to (-Vz). No Vx is included so that it is very reliable.5) Uncertainties from Vx could exist in VperpZ_MF and VparaMF.6) VperpZ_MF and VparaMF can be used to study the relative changes in flow velocity due to  geophysical effects.But can not be used to study the long-term variations because the result could be biased by the uncertainty in Vx.",
        "_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://www.eoportal.org/satellite-missions/formosat-1",
            "Name": "FormoSat-1 Mission catalog",
            "_Note": "Source: all.xml"
          },
          {
            "URL": "https://spacesciences.utdallas.edu/2025/02/10/rocsat-1-republic-of-china-satellite-1/",
            "Name": "ROCSAT-1 UT Dallas Description",
            "_Note": "Source: all.xml"
          },
          {
            "URL": "http://tao.cgu.org.tw/index.php/articles/archive/space-science/item/338-199910s7rocsat",
            "Name": "Terrestrial, Atmospheric and Ocean science journal article",
            "_Note": "Source: all.xml"
          }
        ]
      },
      "ProviderResourceName": "ROCSAT-1(FORMOSAT-1)/IPEI CDF FORMAT",
      "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: Shin-Yi Su at Institute of Space Science, National Central University, Taiwan, R.O.C.",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "HTTPS from SPDF",
            "URL": "https://cdaweb.gsfc.nasa.gov/pub/data/formosat-rocsat/formosat-1/ipei",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "rs_k0_ipei_%Y%m%d_%Q.cdf",
            "AccessDirectoryTemplate": "%Y",
            "ProductKey": "RS_K0_IPEI"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Shin-Yi Su at Institute of Space Science, National Central University, Taiwan, R.O.C.",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "FTPS from SPDF",
            "URL": "ftps://cdaweb.gsfc.nasa.gov/pub/data/formosat-rocsat/formosat-1/ipei",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "rs_k0_ipei_%Y%m%d_%Q.cdf",
            "AccessDirectoryTemplate": "%Y",
            "ProductKey": "RS_K0_IPEI"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Shin-Yi Su at Institute of Space Science, National Central University, Taiwan, R.O.C.",
          "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": "RS_K0_IPEI"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Shin-Yi Su at Institute of Space Science, National Central University, Taiwan, R.O.C.",
          "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=RS_K0_IPEI",
            "Style": "WebService",
            "ProductKey": "RS_K0_IPEI",
            "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: Shin-Yi Su at Institute of Space Science, National Central University, Taiwan, R.O.C.",
          "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/RS_K0_IPEI/clientLibraryExample/",
            "ProductKey": "RS_K0_IPEI",
            "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: Shin-Yi Su at Institute of Space Science, National Central University, Taiwan, R.O.C.",
          "Format": [
            "HTML"
          ],
          "AccessURL": {
            "Name": "4D Orbit Viewer",
            "URL": "https://sscweb.gsfc.nasa.gov/4dorbit/?sc=RS_K0_IPEI",
            "ProductKey": "RS_K0_IPEI",
            "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: Shin-Yi Su at Institute of Space Science, National Central University, Taiwan, R.O.C.",
          "Format": [
            "CSV",
            "JSON",
            "Binary"
          ],
          "AccessURL": {
            "Name": "CDAWeb HAPI Server",
            "URL": "https://hapi-server.org/servers/#server=CDAWeb&dataset=RS_K0_IPEI",
            "Style": "HAPI",
            "ProductKey": "RS_K0_IPEI",
            "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: Shin-Yi Su at Institute of Space Science, National Central University, Taiwan, R.O.C.",
          "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=RS_K0_IPEI&return=script",
            "Style": "HAPI",
            "ProductKey": "RS_K0_IPEI",
            "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: Shin-Yi Su at Institute of Space Science, National Central University, Taiwan, R.O.C.",
          "Format": [
            "PNG",
            "PDF",
            "SVG"
          ],
          "AccessURL": {
            "Name": "HAPI visualizations",
            "URL": "https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=RS_K0_IPEI&format=gallery",
            "Style": "x_Visualization",
            "ProductKey": "RS_K0_IPEI",
            "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": "1999-03-11T00:00:00Z",
          "StopDate": "2004-06-11T23:59:56Z"
        },
        "_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/formosat-rocsat/formosat-1/ipei/1999/rs_k0_ipei_19990311_v01.cdf. The most common cadence, 1000 [ms] = PT1S, occurred for 99.9364% of the 73910 timesteps. "
      },
      "Keyword": [
        "Ionospheric Plasma and Electrodynamics Instrument (from all.xml/observatory/description/@short)",
        "Ionospheric Plasma and Electrodynamics Instrument (from all.xml/instrument/description/@short)",
        "Space Physics (from Master/CDFglobalAttributes/Discipline)",
        "Ionospheric Studies (from Master/CDFglobalAttributes/Discipline)",
        "ROCSAT-1(FORMOSAT-1) (from Master/CDFglobalAttributes/Source_name)",
        "Ionospheric Plasma and Electrodynamics Instrument (from Master/CDFglobalAttributes/Source_name)",
        "K0 (from Master/CDFglobalAttributes/Data_type)",
        "Key Parameter (from Master/CDFglobalAttributes/Data_type)",
        "IPEI (from all.xml/instrument/@ID)"
      ],
      "ObservedRegion": [
        "Earth.NearSurface.Ionosphere"
      ],
      "_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/ROCSAT-1/IPEI",
      "MeasurementType": "IonComposition",
      "Parameter2": [
        {
          "Name": "Time Line",
          "ParameterKey": "Epoch",
          "Description": "CATDESC: 'Time, centered, in NSSDC Epoch'. 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 Line",
          "ParameterKey": "Time_PB5",
          "Description": "Master CDF CATDESC: 'Time, centered, in GSFC PB5 Format (yr, day, ms)'. 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": "Vx_s/c_LVLH",
          "ParameterKey": "vx_rpy",
          "Description": "Master CDF CATDESC: 'Ion drift in S/C LVLH coordinates > x component = along the S/C trajectory vector'. Master CDF VAR_NOTES: 'Ion drift in S/C LVLH coordinates (in ECI Frame of Reference):   x: along the S/C trajectory vector. y: opposite to angular momentum. z: toward the Earth Center.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "m/sec",
          "FillValue": -1e+31
        },
        {
          "Name": "Vy_s/c_LVLH",
          "ParameterKey": "vy_rpy",
          "Description": "Master CDF CATDESC: '--------------------------> y component = opposite to angular momentum'. Master CDF VAR_NOTES: 'Ion drift in S/C LVLH coordinates (in ECI Frame of Reference):   x: along the S/C trajectory vector. y: opposite to angular momentum. z: toward the Earth Center.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "m/sec",
          "FillValue": -1e+31
        },
        {
          "Name": "Vz_s/c_LVLH",
          "ParameterKey": "vz_rpy",
          "Description": "Master CDF CATDESC: '--------------------------> z component = toward the Earth Center'. Master CDF VAR_NOTES: 'Ion drift in S/C LVLH coordinates (in ECI Frame of Reference):   x: along the S/C trajectory vector. y: opposite to angular momentum. z: toward the Earth Center.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "m/sec",
          "FillValue": -1e+31
        },
        {
          "Name": "VparaMF",
          "ParameterKey": "v1",
          "Description": "Master CDF CATDESC: 'Ion drift in Magnetic Field Coordinates > Component parallel to MF'. Master CDF VAR_NOTES: 'Ion drift in Magnetic Field coordinates (in ECF Frame of Reference) (parallel component)'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "m/sec",
          "FillValue": -1e+31
        },
        {
          "Name": "VperpMF_merd",
          "ParameterKey": "v2m",
          "Description": "Master CDF CATDESC: '--------------------------> Meridional component perpendicular to MF'. Master CDF VAR_NOTES: 'Ion drift in Magnetic Field coordinates (in ECF Frame of Reference) (perpendicular, meridional component, positive outward(upward)).'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "m/sec",
          "FillValue": -1e+31
        },
        {
          "Name": "VperpMF_zonal",
          "ParameterKey": "v2z",
          "Description": "Master CDF CATDESC: '--------------------------> Zonal component perpendicular to MF'. Master CDF VAR_NOTES: 'Ion drift in Magnetic Field coordinates (in ECF Frame of Reference) (perpendicular,zonal component, positive eastward).'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "m/sec",
          "FillValue": -1e+31
        },
        {
          "Name": "Ni",
          "ParameterKey": "Ni",
          "Description": "Master CDF CATDESC: 'Total ion density in cm^-3'. Master CDF VAR_NOTES: 'Total ion number density in cm^-3'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": " ",
          "FillValue": -1e+31
        },
        {
          "Name": "Log(Ni)",
          "ParameterKey": "logN",
          "Description": "Master CDF CATDESC: 'Logarithm (base 10) of total ion density in cm^-3'. Master CDF VAR_NOTES: 'Logarithm (Base 10) of total ion number density in cm^-3'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": " ",
          "FillValue": -1e+31
        },
        {
          "Name": "Ti",
          "ParameterKey": "temp",
          "Description": "Master CDF CATDESC: 'Ion Temperature (K)'. Master CDF VAR_NOTES: 'Ion Temperature (K)'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "K",
          "FillValue": -1e+31
        },
        {
          "Name": "O+(%)",
          "ParameterKey": "O",
          "Description": "Master CDF CATDESC: 'Ion Composition > percentage of O+ ions'. Master CDF VAR_NOTES: 'Ion Composition, percentage of O+ ions'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "%",
          "FillValue": -1e+31
        },
        {
          "Name": "H+(%)",
          "ParameterKey": "H",
          "Description": "Master CDF CATDESC: '---------------> percentage of H+ ions'. Master CDF VAR_NOTES: 'Ion Composition, percentage of H+ ions'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "%",
          "FillValue": -1e+31
        },
        {
          "Name": "He+(%)",
          "ParameterKey": "He",
          "Description": "Master CDF CATDESC: '---------------> percentage of He+ ions'. Master CDF VAR_NOTES: 'Ion Composition, percentage of He+ ions'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "%",
          "FillValue": -1e+31
        },
        {
          "Name": "NO+(%)",
          "ParameterKey": "NO",
          "Description": "Master CDF CATDESC: '---------------> percentage of NO+ ions'. Master CDF VAR_NOTES: 'Ion Composition, percentage of NO+ ions'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "%",
          "FillValue": -1e+31
        },
        {
          "Name": "GeogLat",
          "ParameterKey": "glat",
          "Description": "Master CDF CATDESC: 'Geographic Latitude'. Master CDF VAR_NOTES: 'Geographic Latitude'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "degree",
          "FillValue": -1e+31
        },
        {
          "Name": "GLong",
          "ParameterKey": "glon",
          "Description": "Master CDF CATDESC: 'Geographic Longitude'. Master CDF VAR_NOTES: 'Geographic Longitude'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "degree",
          "FillValue": -1e+31
        },
        {
          "Name": "DipLat",
          "ParameterKey": "dlat",
          "Description": "Master CDF CATDESC: 'Dip Latitude'. Master CDF VAR_NOTES: 'Dip Latitude'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "degree",
          "FillValue": -1e+31
        },
        {
          "Name": "Altitude",
          "ParameterKey": "alt",
          "Description": "Master CDF CATDESC: 'Altitude'. Master CDF VAR_NOTES: '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": "LT(hr)",
          "ParameterKey": "lhr",
          "Description": "Master CDF CATDESC: 'Local Time (hr)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'",
          "Units": "hr",
          "FillValue": -1e+31
        }
      ]
    }
  }
}