Each row demonstrates the theoretical double-differential-imaging PI, Q, U, Q_ϕ, and U_ϕ products for a PSF with randomized noise, which is polarized to a specific degree (Pol Frac) in a specific direction (AoLP). The polarization fraction and AoLP applied to each model are measured from the calibrated CHAIRS data products and averaged across the 17 K-band wavelength channels. For plotting purposes, the fractions are scaled up by 10% to allow for better visibility of the patterns. However, the listed fractions on each plot are the true fractions for each target model. The measured polarization fraction in each stokes vector is listed as Q/IQ and U/IU.