{
  "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://NASA/NumericalData/PUNCH/WFI/3/Level3/PF3/P4D",
      "NamingAuthority": "NASA",
      "ResourceType": "NumericalData",
      "ResourceHeader": {
        "ResourceName": "PUNCH Level 3 WFI-3 Polarized F-Corona Model",
        "ReleaseDate": "2026-08-17T00:08:46Z",
        "RevisionHistory": {
          "RevisionEvent": [
            {
              "ReleaseDate": "2026-08-17T00:08:46Z",
              "Note": "Initial release of the SPASE resource description. SY"
            },
            {
              "ReleaseDate": "2026-08-26T00:08:46Z",
              "Note": "Added a Supersedes association to the deprecated PFM product and an InformationURL for the former PFM DOI. Added the missing Metadata Rights identifier. SY"
            }
          ]
        },
        "Description": "PUNCH Level 3 polarized F-corona model derived from Wide Field Imager 3 (WFI-3) observations and represented in the PUNCH mosaic frame as an MZP (Minus, Zero, and Plus) polarization triplet, with a corresponding uncertainty array. The FITS file also includes a table containing file-processing provenance.\n\nThis dataset is a member of the collection “PUNCH NFI-WFI Level 3 Science Dataset.” Per instructions from the PUNCH team, reference to the entire Collection, including the DOI below, should be used when this and other member datasets in the Collection are cited:\n\nSouthwest Research Institute (2025). PUNCH NFI-WFI Level-3 Science images [Collection]. Solar Data Analysis Center. https://doi.org/10.48322/nnv7-bn21. Access date (assigned on date of landing page access).",
        "PublicationInfo": {
          "Authors": "Southwest Research Institute",
          "PublicationDate": "2026-03-31T00:00:00Z",
          "PublishedBy": "Solar Data Analysis Center"
        },
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Craig.E.DeForest",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/J.Marcus.Hughes",
            "Role": "TeamLeader"
          },
          {
            "PersonID": "spase://SMWG/Person/Chris.Lowder",
            "Role": "TeamMember"
          },
          {
            "PersonID": "spase://SMWG/Person/Derek.A.Lamb",
            "Role": "TeamMember"
          },
          {
            "PersonID": "spase://SMWG/Person/Samuel.J.VanKooten",
            "Role": "TeamMember"
          },
          {
            "PersonID": "spase://SMWG/Person/Ritesh.Patel",
            "Role": "TeamMember"
          },
          {
            "PersonID": "spase://SMWG/Person/Daniel.B.Seaton",
            "Role": "TeamMember"
          }
        ],
        "InformationURL": [
          {
            "Name": "The PUNCH Website",
            "URL": "https://punch.space.swri.edu/"
          },
          {
            "Name": "DOI for the Deprecated PUNCH Level 3 PFM Product",
            "URL": "https://doi.org/10.48322/dcpx-4r68",
            "Description": "DOI assigned to the deprecated PUNCH Level 3 Polarized Mosaic F-Corona Model in the MZP System, which was replaced by the PF1, PF2, and PF3 products."
          }
        ],
        "Association": [
          {
            "AssociationID": "spase://NASA/Collection/PUNCH/NFI_WFI/Level3/PT4M",
            "AssociationType": "PartOf"
          },
          {
            "AssociationID": "spase://NASA/NumericalData/PUNCH/NFI_WFI_Mosaic/Level3/PFM/PT24H",
            "AssociationType": "Supersedes",
            "Note": "This dataset is one of the PF1, PF2, and PF3 products that replaced the deprecated PUNCH Level 3 PFM dataset."
          }
        ]
      },
      "AccessInformation": {
        "RepositoryID": "spase://SMWG/Repository/SDAC",
        "Availability": "Online",
        "AccessRights": "Open",
        "RightsList": {
          "Rights": {
            "SchemeURI": "https://spdx.org/licenses/",
            "RightsIdentifierScheme": "SPDX",
            "RightsIdentifier": "CC-BY-4.0",
            "RightsURI": "https://spdx.org/licenses/CC-BY-4.0.html",
            "RightsName": "Creative Commons Attribution 4.0 International",
            "Note": "CC BY 4.0 is the license specified in the PUNCH PF3 FITS files"
          }
        },
        "AccessURL": {
          "Name": "Solar Data Analysis Center (SDAC)",
          "URL": "https://umbra.nascom.nasa.gov/punch/3/PF3/",
          "Style": "Listing"
        },
        "Format": "FITS",
        "Encoding": "None"
      },
      "InstrumentID": "spase://NASA/Instrument/PUNCH/WFI/3",
      "MeasurementType": "ImageIntensity",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "2025-07-24T00:00:00Z",
          "RelativeStopDate": "-P10D"
        },
        "Cadence": "P4D"
      },
      "ObservedRegion": [
        "Sun",
        "Sun.Corona"
      ],
      "InputResourceID": [
        "spase://NASA/NumericalData/PUNCH/WFI/3/Level1/PM3/PT4M",
        "spase://NASA/NumericalData/PUNCH/WFI/3/Level1/PZ3/PT4M",
        "spase://NASA/NumericalData/PUNCH/WFI/3/Level1/PP3/PT4M"
      ],
      "Parameter": [
        {
          "Name": "FITS Extension #1 Data Array",
          "Description": "PUNCH Level 3 polarized F-corona model derived from WFI-3 observations and represented in the PUNCH mosaic coordinate frame. The data are stored as a compressed 4096 by 4096 by 3 floating-point image cube containing the MZP polarization triplet: Minus (−60°), Zero (0°), and Plus (+60°). The image uses helioprojective longitude and latitude coordinates with an ARC projection and a pixel scale of 0.0225 degrees, or 81 arcsec, at the reference point. The nominal wavelength is 530 nm. The reference time of the model is specified by the DATE-OBS FITS keyword.",
          "Units": "2.009e+07 W m^-2 sr^-1",
          "Wave": {
            "WaveType": "Electromagnetic",
            "WaveQuantity": "Intensity",
            "WavelengthRange": {
              "Low": "530",
              "High": "530",
              "Units": "nm"
            }
          }
        },
        {
          "Name": "FITS Extension #2 Uncertainty Array",
          "Description": "Reciprocal fractional uncertainty associated pixel by pixel with the WFI-3 polarized F-corona model in FITS extension 1. The stored value is the model intensity divided by its absolute uncertainty. The array size is 4096 by 4096 by 3, corresponding to the Minus, Zero, and Plus polarization layers.",
          "Units": "Dimensionless",
          "Support": {
            "Qualifier": "Uncertainty",
            "SupportQuantity": "DataQuality"
          }
        }
      ]
    }
  }
}