{
  "id": "ISS_SP_FPMU",
  "url": "http://hpde.io/NASA/NumericalData/ISS/FPMU/PT1S",
  "data-file": "./data/spase_hpde_io/info/ISS_SP_FPMU.json",
  "data": {
    "Spase": {
      "xmlns": "http://www.spase-group.org/data/schema",
      "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance",
      "xsi:schemaLocation": "https://www.spase-group.org/data/schema  https://www.spase-group.org/data/schema/spase-2.7.1.xsd",
      "Version": "2.7.1",
      "MetadataRightsList": {
        "Rights": {
          "SchemeURI": "https://spdx.org/licenses/",
          "RightsIdentifierScheme": "SPDX",
          "RightsIdentifier": "CC0-1.0",
          "RightsURI": "https://spdx.org/licenses/CC0-1.0.html",
          "RightsName": "Creative Commons Zero v1.0 Universal",
          "Note": "CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions"
        }
      },
      "NumericalData": {
        "ResourceID": "spase://NASA/NumericalData/ISS/FPMU/PT1S",
        "NamingAuthority": "NASA",
        "ResourceType": "NumericalData",
        "ResourceHeader": {
          "ResourceName": "ISS Floating Potential Measurement Unit (FPMU), Summary Parameter 1 s Data",
          "ReleaseDate": "2025-12-04T13:29:49Z",
          "RevisionHistory": {
            "RevisionEvent": [
              {
                "ReleaseDate": "2021-04-27T15:38:11Z",
                "Note": "Only known prior ReleaseDate of the metadata"
              },
              {
                "ReleaseDate": "2025-11-14T16:02:52Z",
                "Note": "Added PublicationInfo. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB"
              },
              {
                "ReleaseDate": "2025-12-04T13:29:49Z",
                "Note": "Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB"
              }
            ]
          },
          "Description": "International Space Station, ISS, Floating Potential Measurement Unit, FPMU, Ionosphere Summary Wide Langmuir Probe, WLP, Density and Narrow Langmuir Probe, NLP, Temperature Records 1 s Data. The Space Dynamics Laboratory, SDL, Utah State University, USU, developed the FPMU for the NASA Johnson Space Center. The FPMU was installed by ISS Crew Members during an Extra Vehicular Activity, EVA, on the Starboard, Sl, Truss of the ISS in early August 2006. The System is based on past USU SDL Space Instruments and incorporates a Floating Potential Probe, Multiple Langmuir Probes, and a Plasma Frequency Probe into one Sensor Suite. The FPMU is used to correct the Charging Models of the Station each time a New Section is added to the Structure. By providing Feedback on the Effectiveness of Steps taken to control Charging, the FPMU helps ensure a Safe Working Environment for the Astronauts.",
          "Acknowledgement": "R.M. Suggs, S.L. Koontz, NASA Johnson Space Center Contact Rob Suggs for support and use. Rob.Suggs@nasa.gov.",
          "PublicationInfo": {
            "Authors": "Suggs, Robert M.; Koontz, Steven L.",
            "PublicationDate": "2025-11-14T16:02:52Z",
            "PublishedBy": "Space Physics Data Facility"
          },
          "Contact": [
            {
              "PersonID": "spase://SMWG/Person/Robert.M.Suggs",
              "Role": "PrincipalInvestigator"
            },
            {
              "PersonID": "spase://SMWG/Person/Steven.L.Koontz",
              "Role": "PrincipalInvestigator"
            },
            {
              "PersonID": "spase://SMWG/Person/Robert.E.McGuire",
              "Role": "MetadataContact"
            },
            {
              "PersonID": "spase://SMWG/Person/Lee.Frost.Bargatze",
              "Role": "MetadataContact"
            }
          ],
          "InformationURL": {
            "Name": "Floating Potential Measurement Unit, FPMU, Home Page, SDL, USU",
            "URL": "http://www.sdl.usu.edu/programs/fpmu",
            "Description": "Floating Potential Measurement Unit, FPMU, Home Page, Space Dynamics Laboratory, Utah State University, per NASA Policy Directive 2200.1B, Section 1.a.5"
          },
          "PriorID": "spase://VSPO/NumericalData/ISS/FPMU/PT1S"
        },
        "AccessInformation": [
          {
            "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
            "Availability": "Online",
            "AccessRights": "Open",
            "RightsList": {
              "Rights": {
                "SchemeURI": "https://spdx.org/licenses/",
                "RightsIdentifierScheme": "SPDX",
                "RightsIdentifier": "CC0-1.0",
                "RightsURI": "https://spdx.org/licenses/CC0-1.0.html",
                "RightsName": "Creative Commons Zero v1.0 Universal",
                "Note": "CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products"
              }
            },
            "AccessURL": {
              "Name": "FTPS from SPDF (not with most browsers)",
              "URL": "ftps://spdf.gsfc.nasa.gov/pub/data/international_space_station_iss/sp_fpmu/",
              "Description": "Access to Data in CDF Format via ftp from SPDF"
            },
            "Format": "CDF",
            "Encoding": "None",
            "Acknowledgement": "R.M. Suggs, S.L. Koontz, NASA Johnson Space Center Contact Rob Suggs for support and use. Rob.Suggs@nasa.gov. Please acknowledge the data providers and CDAWeb when using these data."
          },
          {
            "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
            "Availability": "Online",
            "AccessRights": "Open",
            "RightsList": {
              "Rights": {
                "SchemeURI": "https://spdx.org/licenses/",
                "RightsIdentifierScheme": "SPDX",
                "RightsIdentifier": "CC0-1.0",
                "RightsURI": "https://spdx.org/licenses/CC0-1.0.html",
                "RightsName": "Creative Commons Zero v1.0 Universal",
                "Note": "CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products"
              }
            },
            "AccessURL": {
              "Name": "HTTPS from SPDF",
              "URL": "https://spdf.gsfc.nasa.gov/pub/data/international_space_station_iss/sp_fpmu/",
              "Description": "Access to Data in CDF Format via http from SPDF"
            },
            "Format": "CDF",
            "Encoding": "None",
            "Acknowledgement": "R.M. Suggs, S.L. Koontz, NASA Johnson Space Center Contact Rob Suggs for support and use. Rob.Suggs@nasa.gov. Please acknowledge the data providers and CDAWeb when using these data."
          },
          {
            "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
            "Availability": "Online",
            "AccessRights": "Open",
            "RightsList": {
              "Rights": {
                "SchemeURI": "https://spdx.org/licenses/",
                "RightsIdentifierScheme": "SPDX",
                "RightsIdentifier": "CC0-1.0",
                "RightsURI": "https://spdx.org/licenses/CC0-1.0.html",
                "RightsName": "Creative Commons Zero v1.0 Universal",
                "Note": "CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products"
              }
            },
            "AccessURL": {
              "Name": "CDAWeb",
              "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=ISS_SP_FPMU&index=sp_phys",
              "ProductKey": "ISS_SP_FPMU",
              "Description": "Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb"
            },
            "Format": "CDF",
            "Encoding": "None",
            "Acknowledgement": "R.M. Suggs, S.L. Koontz, NASA Johnson Space Center Contact Rob Suggs for support and use. Rob.Suggs@nasa.gov. Please acknowledge the data providers and CDAWeb when using these data."
          },
          {
            "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
            "Availability": "Online",
            "AccessRights": "Open",
            "RightsList": {
              "Rights": {
                "SchemeURI": "https://spdx.org/licenses/",
                "RightsIdentifierScheme": "SPDX",
                "RightsIdentifier": "CC0-1.0",
                "RightsURI": "https://spdx.org/licenses/CC0-1.0.html",
                "RightsName": "Creative Commons Zero v1.0 Universal",
                "Note": "CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products"
              }
            },
            "AccessURL": {
              "Name": "CDAWeb HAPI Server",
              "URL": "https://cdaweb.gsfc.nasa.gov/hapi",
              "Style": "HAPI",
              "ProductKey": "ISS_SP_FPMU",
              "Description": "Web Service to this product using the HAPI interface."
            },
            "Format": "CSV",
            "Acknowledgement": "R.M. Suggs, S.L. Koontz, NASA Johnson Space Center Contact Rob Suggs for support and use. Rob.Suggs@nasa.gov. Please acknowledge the data providers and CDAWeb when using these data."
          }
        ],
        "ProcessingLevel": "Calibrated",
        "InstrumentID": "spase://SMWG/Instrument/ISS/FPMU",
        "MeasurementType": "ThermalPlasma",
        "TemporalDescription": {
          "TimeSpan": {
            "StartDate": "2010-01-27T00:00:00.000",
            "StopDate": "2016-10-02T23:59:59.999"
          },
          "Cadence": "PT1S"
        },
        "ObservedRegion": [
          "Earth.NearSurface.Ionosphere.FRegion",
          "Earth.NearSurface.Thermosphere"
        ],
        "Parameter": {
          "Epoch": {
            "Name": "Epoch Time",
            "ParameterKey": "Epoch",
            "Description": "Epoch Time, Default",
            "Caveats": "Time, dd-mm-yyyy hh:mm:ss.mms, This parameter exhibits an increasing monotonic progression.",
            "Cadence": "PT1S",
            "Units": "d",
            "UnitsConversion": "86400>s^-1",
            "RenderingHints": {
              "AxisLabel": "Epoch",
              "ScaleType": "LinearScale"
            },
            "ValidMin": "01-Aug-2006 00:00:00.000",
            "ValidMax": "31-Dec-2059 23:59:59.999",
            "FillValue": "31-Dec-9999 23:59:59.999",
            "Support": {
              "SupportQuantity": "Temporal"
            }
          },
          "Latitude": {
            "Name": "ISS Longitude, GEO",
            "Set": "Time series defined by using: EPOCH",
            "ParameterKey": "Latitude",
            "Description": "International Space Station, ISS, Longitude, Geographic, GEO",
            "Caveats": "Geodetic Latitude",
            "Cadence": "PT1S",
            "Units": "°",
            "UnitsConversion": "0.0174532925>rad",
            "CoordinateSystem": {
              "CoordinateRepresentation": "Spherical",
              "CoordinateSystemName": "GEO"
            },
            "RenderingHints": {
              "DisplayType": "TimeSeries",
              "AxisLabel": "Latitude",
              "ValueFormat": "F7.3",
              "ScaleType": "LinearScale"
            },
            "ValidMin": "-90.0",
            "ValidMax": "90.0",
            "FillValue": "-1.0e+31",
            "Support": {
              "Qualifier": "DirectionAngle.AzimuthAngle",
              "SupportQuantity": "Positional"
            }
          },
          "Longitude": {
            "Name": "ISS Latitude, GEO",
            "Set": "Time series defined by using: EPOCH",
            "ParameterKey": "Longitude",
            "Description": "International Space Station, ISS, Latitude, Geographic, GEO",
            "Caveats": "Geodetic Longitude",
            "Cadence": "PT1S",
            "Units": "°",
            "UnitsConversion": "0.0174532925>rad",
            "CoordinateSystem": {
              "CoordinateRepresentation": "Spherical",
              "CoordinateSystemName": "GEO"
            },
            "RenderingHints": {
              "DisplayType": "TimeSeries",
              "AxisLabel": "Longitude",
              "ValueFormat": "F8.3",
              "ScaleType": "LinearScale"
            },
            "ValidMin": "-180.0",
            "ValidMax": "180.0",
            "FillValue": "-1.0e+31",
            "Support": {
              "Qualifier": "DirectionAngle.ElevationAngle",
              "SupportQuantity": "Positional"
            }
          },
          "Altitude": {
            "Name": "ISS Altitude",
            "Set": "Time series defined by using: EPOCH",
            "ParameterKey": "Altitude",
            "Description": "International Space Station, ISS, Altitude, Geographic, GEO",
            "Caveats": "Geodetic Altitude",
            "Cadence": "PT1S",
            "Units": "km",
            "UnitsConversion": "1e3>m",
            "RenderingHints": {
              "DisplayType": "TimeSeries",
              "AxisLabel": "Altitude",
              "ValueFormat": "F8.3",
              "ScaleType": "LinearScale"
            },
            "ValidMin": "0.0",
            "ValidMax": "500.0",
            "FillValue": "-1.0e+31",
            "Support": {
              "Qualifier": "Scalar",
              "SupportQuantity": "Other"
            }
          },
          "N_i": {
            "Name": "Total Ion Density",
            "Set": "Time series defined by using: EPOCH",
            "ParameterKey": "N_i",
            "Description": "Total Ion Density, equal to the Electron Density",
            "Caveats": "Ion Density derived from the FPMU Wide Langmuir Probe. It can be used also for Electron Density assuming Quasi-Neutrality",
            "Cadence": "PT1S",
            "Units": "m^-3",
            "RenderingHints": {
              "DisplayType": "TimeSeries",
              "AxisLabel": "Ion Density",
              "ValueFormat": "E10.3"
            },
            "ValidMin": "1.0e+08",
            "ValidMax": "1.0e+15",
            "FillValue": "-1.0e+31",
            "Particle": {
              "ParticleType": "Ion",
              "Qualifier": "Scalar",
              "ParticleQuantity": "NumberDensity"
            }
          },
          "T_e": {
            "Name": "Electron Temperature",
            "Set": "Time series defined by using: EPOCH",
            "ParameterKey": "T_e",
            "Description": "Electron Temperature",
            "Caveats": "Electron temperature derived from the FPMU Narrow Langmuir Probe",
            "Cadence": "PT1S",
            "Units": "°K",
            "RenderingHints": {
              "DisplayType": "TimeSeries",
              "AxisLabel": "Electron Temperature",
              "ValueFormat": "F9.3",
              "ScaleType": "LinearScale"
            },
            "ValidMin": "0.0",
            "ValidMax": "20000.0",
            "FillValue": "-1.0e+31",
            "Particle": {
              "ParticleType": "Electron",
              "Qualifier": "Scalar",
              "ParticleQuantity": "Temperature"
            }
          },
          "Angle": {
            "Name": "ISS Pitch Angle",
            "Set": "Time series defined by using: EPOCH",
            "ParameterKey": "Angle",
            "Description": "International Space Station, ISS, Pitch Angle",
            "Caveats": "This ISS Pitch Attitude Information is necessary for Proper Derivation of the NLP Density. The NLP is a Cylindrical Langmuir Probe which is symmetric about the Roll and Yaw Axes.",
            "Cadence": "PT1S",
            "Units": "°",
            "UnitsConversion": "0.0174532925>rad",
            "RenderingHints": {
              "DisplayType": "TimeSeries",
              "AxisLabel": "ISS Pitch Angle",
              "ValueFormat": "F8.3",
              "ScaleType": "LinearScale"
            },
            "ValidMin": "0.0",
            "ValidMax": "360.0",
            "FillValue": "-1.0e+31",
            "Support": {
              "Qualifier": "DirectionAngle.AzimuthAngle",
              "SupportQuantity": "Positional"
            }
          },
          "Sunlight": {
            "Name": "Solar Illumination, Percent",
            "Set": "Time series defined by using: EPOCH",
            "ParameterKey": "Sunlight",
            "Description": "Solar Illumination, Percent",
            "Caveats": "Percent Solar Illumination with no Correction for Atmospheric Refraction",
            "Cadence": "PT1S",
            "RenderingHints": {
              "DisplayType": "TimeSeries",
              "AxisLabel": "Sunlight",
              "ValueFormat": "F8.3",
              "ScaleType": "LinearScale"
            },
            "ValidMin": "0.0",
            "ValidMax": "100.0",
            "FillValue": "-1.0e+31",
            "Support": {
              "SupportQuantity": "Other"
            }
          },
          "TCC": {
            "Name": "Time Code Correction",
            "Set": "Time series defined by using: EPOCH",
            "ParameterKey": "TCC",
            "Description": "Time Code Correction",
            "Caveats": "Flag indicating that the Time Code was Correct in Original the File, 0, or that a Corrupt Time Code was corrected during Processing, 1",
            "Cadence": "PT1S",
            "RenderingHints": {
              "DisplayType": "TimeSeries",
              "AxisLabel": "Time Code Correction",
              "ValueFormat": "I2",
              "ScaleType": "LinearScale"
            },
            "ValidMin": "0",
            "ValidMax": "1",
            "FillValue": "-9223372036854775808",
            "Support": {
              "SupportQuantity": "InstrumentMode"
            }
          },
          "GS": {
            "Name": "Processing Ground Station",
            "Set": "Time series defined by using: EPOCH",
            "ParameterKey": "GS",
            "Description": "Processing Ground Station",
            "Caveats": "Processing Ground Station could be JSC, MSFC, or HSV.",
            "Cadence": "PT1S",
            "RenderingHints": {
              "AxisLabel": "ground_station",
              "ValueFormat": "A5"
            },
            "Support": {
              "SupportQuantity": "Other"
            }
          }
        }
      }
    }
  }
}