2.7.2 https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions spase://NASA/NumericalData/PUNCH/NFI_WFI_Mosaic/Level3/PSM/P7D NASA NumericalData PUNCH Level 3 Polarized Mosaic Starfield Model 2026-08-18T00:08:46Z PUNCH Level 3 polarized mosaic starfield model in celestial coordinates, resolved into total brightness (B), polarized brightness (pB), and conjugate polarized brightness (pB') image layers, with a corresponding uncertainty array. This dataset is a member of the Collection of PUNCH Level-3 Science Image datasets. Per instructions from the PUNCH team, reference to the entire Collection (including the DOI, see below) should be used when this and other member datasets in the Collection are needed for citation purposes: Southwest 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). Southwest Research Institute 2026-04-03T00:00:00Z Solar Data Analysis Center spase://SMWG/Person/Craig.E.DeForest PrincipalInvestigator spase://SMWG/Person/J.Marcus.Hughes TeamLeader spase://SMWG/Person/Chris.Lowder TeamMember spase://SMWG/Person/Derek.A.Lamb TeamMember spase://SMWG/Person/Samuel.J.VanKooten TeamMember spase://SMWG/Person/Ritesh.Patel TeamMember spase://SMWG/Person/Daniel.B.Seaton TeamMember The PUNCH Website https://punch.space.swri.edu/ spase://NASA/Collection/PUNCH/NFI_WFI/Level3/PT4M PartOf spase://SMWG/Repository/SDAC Online Open https://spdx.org/licenses/ SPDX CC-BY-4.0 https://spdx.org/licenses/CC-BY-4.0.html Creative Commons Attribution 4.0 International CC BY 4.0 is the license specified in the PUNCH PSM FITS files Solar Data Analysis Center (SDAC) https://umbra.nascom.nasa.gov/punch/3/PSM/ FITS None spase://NASA/Instrument/PUNCH/NFI spase://NASA/Instrument/PUNCH/WFI/1 spase://NASA/Instrument/PUNCH/WFI/2 spase://NASA/Instrument/PUNCH/WFI/3 ImageIntensity 2025-07-08T00:00:00Z -P2M P7D Sun Sun.Corona FITS Extension #1 Data Array PUNCH Level 3 polarized mosaic starfield model stored as a compressed three-dimensional floating-point image cube with three image layers: total brightness (B), polarized brightness (pB), and the conjugate polarized brightness component (pB'). The image dimensions may vary between files. The FITS header provides helioprojective longitude and latitude coordinates with a CAR projection and an alternate ICRS right ascension and declination coordinate system with a STOKES third axis. The pixel scale is 0.02 degrees, or 72 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. 2.009e+07 W m^-2 sr^-1 Electromagnetic Intensity 530 530 nm FITS Extension #2 Uncertainty Array Uncertainty array associated pixel by pixel with the PSM starfield model in FITS extension 1. Uncertainty DataQuality