Depolarization models for the four sources at C and X bands with the L band data points over plotted. Shown for each source are behavior of the fractional Stokes parameters (q and u), the fractional polarization (p), and the polarization angle (χ) versus wavelength squared (λ²). Blue data points are for bands C and X, and red points are for L band. Black lines are the depolarization models fit considering bands C and X.