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).

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.

Uncertainty array associated pixel by pixel with the PSM starfield model in FITS extension 1.