PUNCH Level2 Polarized Mosaics (Trefoil) Data

PUNCH Polarized science mosaics (Trefoil) in output coordinates, resolved into MZP polarization triplets and uncertainty layer.

These are rectified NFI images and full-constellation mosaic trefoil images, resampled to output projection coordinates (gnomonic projection for NFI and azimuthal-equidistant projection for the mosaics). Polarization is given in the virtual-polarizer M,Z,P system. The images are intended to be photometric, astrometrically regularized images of the celestial sphere with all light sources included.

This dataset is a member of the Collection of PUNCH Level-2 Science Image dataset. 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-2 Science images [Collection]. Solar Data Analysis Center. https://doi.org/10.48322/stqs-j385. Access date (assigned on date of landing page access).

输出坐标系下的PUNCH偏振科学拼接图（三叶形），已分解为MZP偏振三元组（MZP polarization triplets）与不确定度层（uncertainty layer）。
本数据集包含经过校正的NFI图像与全星座拼接三叶形图像，所有图像均已重采样至输出投影坐标系（其中NFI适配球心投影（gnomonic projection），拼接图适配方位等距投影（azimuthal-equidistant projection））。偏振参数基于虚拟偏振片M、Z、P系统（virtual-polarizer M,Z,P system）给出。本数据集的图像为经过光度校准、天体测量正则化处理的全天球图像，涵盖所有天体光源。
本数据集隶属于PUNCH二级科学图像数据集合集。根据PUNCH团队的规范，若需引用本数据集或合集中的其他成员数据集，应引用整个合集（包含下述DOI）：西南研究所（2025）。《PUNCH NFI-WFI二级科学图像[合集]》。太阳数据分析中心。https://doi.org/10.48322/stqs-j385。访问日期以着陆页实际访问当日为准。