{
  "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-2.7.2.xsd",
    "Version": "2.7.2",
    "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://NOAA/NumericalData/GOES/17/EXIS/XRS/Science/L2/PT1S",
      "NamingAuthority": "NOAA",
      "ResourceType": "NumericalData",
      "ResourceHeader": {
        "ResourceName": "GOES-17 EXIS/XRS Science Level 2 1-second X-ray Irradiance",
        "AlternateName": "GOES-17 XRS L2 Science-Quality 1-second Fluxes (flx1s)",
        "ReleaseDate": "2026-10-20T00:08:46Z",
        "RevisionHistory": {
          "RevisionEvent": [
            {
              "ReleaseDate": "2026-10-20T00:08:46Z",
              "Note": "Initial metadata creation. SY"
            },
            {
              "ReleaseDate": "2026-10-22T00:08:46Z",
              "Note": "Updated ResourceHeader Description and User Guide description. SY"
            }
          ]
        },
        "Description": "GOES-17 EXIS/XRS science-quality Level 2 one-second irradiance (flx1s) product distributed in daily NetCDF-4 files. The product provides irradiance in the XRS-A (0.05–0.4 nm) and XRS-B (0.1–0.8 nm) bands from individual low- and high-irradiance sensors, as well as primary-channel merged irradiance values for each band. The processing also includes quality/status flags, corrected quadrant currents, and spacecraft/instrument ancillary information. Electron contamination correction is not applied to the 1-second irradiance data; this correction is available in the 1-minute average Level 2 product. This science-quality Level 2 stream is generated using retrospectively reprocessed data and updated calibrations and corrections; it is distributed separately from the operational Level 2 series used for real-time space-weather operations. NOAA recommends the science-quality XRS Level 2 series for scientific analysis; consult the XRS L2 ReadMe and User Guide for details.",
        "PublicationInfo": {
          "Title": "GOES-R Series Extreme Ultraviolet and X-ray Irradiance Sensors (EXIS) Level 2 Products",
          "Authors": "Machol, Janet; Codrescu, Stefan; Viereck, Rodney",
          "PublicationDate": "2018-09-01T00:00:00Z",
          "PublishedBy": "NOAA National Centers for Environmental Information"
        },
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Janet.L.Machol",
            "Role": "InstrumentScientist",
            "Note": "NOAA NCEI Instrument Scientist and scientific contact for GOES-R EXIS/XRS."
          },
          {
            "PersonID": "spase://SMWG/Person/NOAA.GOES-R.EXIS",
            "Role": "GeneralContact",
            "Note": "NOAA GOES-R EXIS Team"
          }
        ],
        "InformationURL": [
          {
            "Name": "NOAA NCEI GOES-R EXIS Level 2 Dataset Metadata",
            "URL": "https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.ncei.swx%3Aexis-l2-goesr",
            "Description": "Official NOAA dataset description, citation, access details and lineage."
          },
          {
            "Name": "NOAA GOES-R XRS Level 2 Data ReadMe",
            "URL": "https://data.ngdc.noaa.gov/platforms/solar-space-observing-satellites/goes/goes16/l2/docs/GOES-R_XRS_L2_Data_ReadMe.pdf",
            "Description": "NOAA product descriptions, operational/science processing differences, and data caveats."
          },
          {
            "Name": "NOAA GOES-R XRS Level 2 Data User Guide",
            "URL": "https://data.ngdc.noaa.gov/platforms/solar-space-observing-satellites/goes/goes16/l2/docs/GOES-R_XRS_L2_Data_Users_Guide.pdf",
            "Description": "The User Guide describes the algorithms, parameters, time conventions, and interpretation of the XRS Level 2 products."
          }
        ]
      },
      "AccessInformation": {
        "RepositoryID": "spase://SMWG/Repository/NOAA/NCEI",
        "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": "NOAA-produced data are publicly available under NOAA's open data policy. Users should cite the NOAA NCEI dataset as specified in the dataset metadata."
          }
        },
        "AccessURL": {
          "Name": "NOAA NCEI GOES-17 EXIS/XRS Science-Quality Level 2 1-second NetCDF Archive",
          "URL": "https://data.ngdc.noaa.gov/platforms/solar-space-observing-satellites/goes/goes17/l2/data/xrsf-l2-flx1s_science/",
          "Style": "Listing",
          "Description": "Daily science-quality GOES-17 XRS Level 2 1-second (flx1s) NetCDF files; browse by year and month."
        },
        "Format": "NetCDF",
        "Encoding": "None"
      },
      "ProviderResourceName": "Geostationary Operational Environmental Satellite, R-Series (GOES-R) Extreme Ultraviolet X-Ray Irradiance Sensors (EXIS) Level 2 Products",
      "ProviderProcessingLevel": "Science-Quality Level 2",
      "InstrumentID": "spase://NOAA/Instrument/GOES/17/EXIS/XRS",
      "MeasurementType": "Irradiance",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "2018-06-01T00:00:00Z",
          "StopDate": "2023-01-10T18:20:08Z"
        },
        "Cadence": "PT1S"
      },
      "ObservedRegion": [
        "Sun",
        "Sun.Corona"
      ],
      "Parameter": [
        {
          "Name": "Time",
          "ParameterKey": "time",
          "Description": "Record start time of each 1-second XRS L2 sample, expressed as seconds since 2000-01-01 12:00:00 UTC, neglecting leap seconds.",
          "Cadence": "PT1S",
          "Units": "s",
          "FillValue": "-9999",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "XRS-A Primary Irradiance",
          "ParameterKey": "xrsa_flux",
          "Description": "One-second solar X-ray irradiance in the XRS-A band (0.05-0.4 nm), selected from the primary detector according to the xrsa_primary_chan indicator. This is the merged primary-channel irradiance.",
          "Cadence": "PT1S",
          "Units": "W/m^2",
          "FillValue": "-9999",
          "Wave": {
            "WaveType": "Photon",
            "WaveQuantity": "EnergyFlux",
            "WavelengthRange": {
              "Low": "0.05",
              "High": "0.4",
              "Units": "nm"
            }
          }
        },
        {
          "Name": "XRS-A1 Irradiance",
          "ParameterKey": "xrsa1_flux",
          "Description": "One-second solar X-ray irradiance from the XRS-A1 low-irradiance high-sensitivity single photodiode.",
          "Cadence": "PT1S",
          "Units": "W/m^2",
          "FillValue": "-9999",
          "Wave": {
            "WaveType": "Photon",
            "WaveQuantity": "EnergyFlux",
            "WavelengthRange": {
              "Low": "0.05",
              "High": "0.4",
              "Units": "nm"
            }
          }
        },
        {
          "Name": "XRS-A2 Irradiance",
          "ParameterKey": "xrsa2_flux",
          "Description": "One-second solar X-ray irradiance from the XRS-A2 high-irradiance lower-sensitivity quadrant photodiode.",
          "Cadence": "PT1S",
          "Units": "W/m^2",
          "FillValue": "-9999",
          "Wave": {
            "WaveType": "Photon",
            "WaveQuantity": "EnergyFlux",
            "WavelengthRange": {
              "Low": "0.05",
              "High": "0.4",
              "Units": "nm"
            }
          }
        },
        {
          "Name": "XRS-A Primary Channel Selection",
          "ParameterKey": "xrsa_primary_chan",
          "Description": "Primary detector choice for XRS-A: 1 indicates detector A1, 2 indicates detector A2, and 255 indicates unknown. Refer to NetCDF flag_values and flag_meanings.",
          "Cadence": "PT1S",
          "FillValue": "255",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "XRS-B Primary Irradiance",
          "ParameterKey": "xrsb_flux",
          "Description": "One-second solar X-ray irradiance in the XRS-B band (0.1-0.8 nm), selected from the primary detector according to the xrsb_primary_chan indicator. This is the merged primary-channel irradiance.",
          "Cadence": "PT1S",
          "Units": "W/m^2",
          "FillValue": "-9999",
          "Wave": {
            "WaveType": "Photon",
            "WaveQuantity": "EnergyFlux",
            "WavelengthRange": {
              "Low": "0.1",
              "High": "0.8",
              "Units": "nm"
            }
          }
        },
        {
          "Name": "XRS-B1 Irradiance",
          "ParameterKey": "xrsb1_flux",
          "Description": "One-second solar X-ray irradiance from the XRS-B1 low-irradiance high-sensitivity single photodiode.",
          "Cadence": "PT1S",
          "Units": "W/m^2",
          "FillValue": "-9999",
          "Wave": {
            "WaveType": "Photon",
            "WaveQuantity": "EnergyFlux",
            "WavelengthRange": {
              "Low": "0.1",
              "High": "0.8",
              "Units": "nm"
            }
          }
        },
        {
          "Name": "XRS-B2 Irradiance",
          "ParameterKey": "xrsb2_flux",
          "Description": "One-second solar X-ray irradiance from the XRS-B2 high-irradiance lower-sensitivity quadrant photodiode.",
          "Cadence": "PT1S",
          "Units": "W/m^2",
          "FillValue": "-9999",
          "Wave": {
            "WaveType": "Photon",
            "WaveQuantity": "EnergyFlux",
            "WavelengthRange": {
              "Low": "0.1",
              "High": "0.8",
              "Units": "nm"
            }
          }
        },
        {
          "Name": "XRS-B Primary Channel Selection",
          "ParameterKey": "xrsb_primary_chan",
          "Description": "Primary detector choice for XRS-B: 1 indicates detector B1, 2 indicates detector B2, and 255 indicates unknown. Refer to NetCDF flag_values and flag_meanings.",
          "Cadence": "PT1S",
          "FillValue": "255",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "XRS-A Flux Quality Flags",
          "ParameterKey": "xrsa_flags",
          "Description": "Bit-field quality flags for xrsa_flux. Interpret flags using NetCDF flag_masks, flag_values, and flag_meanings; a value of 0 indicates good data.",
          "Cadence": "PT1S",
          "FillValue": "65535",
          "Support": {
            "SupportQuantity": "DataQuality"
          }
        },
        {
          "Name": "XRS-A1 Flux Quality Flags",
          "ParameterKey": "xrsa1_flags",
          "Description": "Bit-field quality flags for xrsa1_flux. Interpret flags using NetCDF flag_masks, flag_values, and flag_meanings; a value of 0 indicates good data.",
          "Cadence": "PT1S",
          "FillValue": "65535",
          "Support": {
            "SupportQuantity": "DataQuality"
          }
        },
        {
          "Name": "XRS-A2 Flux Quality Flags",
          "ParameterKey": "xrsa2_flags",
          "Description": "Bit-field quality flags for xrsa2_flux. Interpret flags using NetCDF flag_masks, flag_values, and flag_meanings; a value of 0 indicates good data.",
          "Cadence": "PT1S",
          "FillValue": "65535",
          "Support": {
            "SupportQuantity": "DataQuality"
          }
        },
        {
          "Name": "XRS-B Flux Quality Flags",
          "ParameterKey": "xrsb_flags",
          "Description": "Bit-field quality flags for xrsb_flux. Interpret flags using NetCDF flag_masks, flag_values, and flag_meanings; a value of 0 indicates good data.",
          "Cadence": "PT1S",
          "FillValue": "65535",
          "Support": {
            "SupportQuantity": "DataQuality"
          }
        },
        {
          "Name": "XRS-B1 Flux Quality Flags",
          "ParameterKey": "xrsb1_flags",
          "Description": "Bit-field quality flags for xrsb1_flux. Interpret flags using NetCDF flag_masks, flag_values, and flag_meanings; a value of 0 indicates good data.",
          "Cadence": "PT1S",
          "FillValue": "65535",
          "Support": {
            "SupportQuantity": "DataQuality"
          }
        },
        {
          "Name": "XRS-B2 Flux Quality Flags",
          "ParameterKey": "xrsb2_flags",
          "Description": "Bit-field quality flags for xrsb2_flux. Interpret flags using NetCDF flag_masks, flag_values, and flag_meanings; a value of 0 indicates good data.",
          "Cadence": "PT1S",
          "FillValue": "65535",
          "Support": {
            "SupportQuantity": "DataQuality"
          }
        },
        {
          "Name": "XRS-A2 Corrected Quadrant Currents",
          "ParameterKey": "corrected_current_xrsa2",
          "Description": "Corrected electric currents of four quadrants of the XRS-A2 detector, stored as a two-dimensional NetCDF variable indexed by time and quadrant.",
          "Cadence": "PT1S",
          "Units": "A",
          "FillValue": "-9999",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "XRS-B2 Corrected Quadrant Currents",
          "ParameterKey": "corrected_current_xrsb2",
          "Description": "Corrected electric currents of four quadrants of the XRS-B2 detector, stored as a two-dimensional NetCDF variable indexed by time and quadrant.",
          "Cadence": "PT1S",
          "Units": "A",
          "FillValue": "-9999",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "1-AU Distance Correction Factor",
          "ParameterKey": "au_factor",
          "Description": "Factor used for conversion of measured solar X-ray flux to the reference distance of 1 AU. Consult the product documentation for the correction convention.",
          "Cadence": "PT1S",
          "FillValue": "-9999",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Spacecraft Roll Angle",
          "ParameterKey": "roll_angle",
          "Description": "Angular offset of the solar position pointing reference relative to the celestial north rotational pole, measured counterclockwise.",
          "Cadence": "PT1S",
          "Units": "degrees",
          "FillValue": "-9999",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "Spacecraft Yaw Flip Flag",
          "ParameterKey": "yaw_flip_flag",
          "Description": "Spacecraft orientation indicator with NetCDF flag meanings upright (0), neither (1), and inverted (2).",
          "Cadence": "PT1S",
          "FillValue": "255",
          "Support": {
            "SupportQuantity": "Other"
          }
        }
      ]
    }
  }
}