Correlation between the median simulated Stokes I from two sky models and the median excess variance over LST. Top: correlation between the Cas A and Cyg A model and excess variance over LST. Bottom: correlation between the DI sky model (that accounts for ~99% of the power in the sky model) and Α-team sources and excess variance over LST. Different colors indicate different LST bins. The error bars on each data point indicate the RMS of the simulated Stokes I power and the excess variance between nights per LST bin, respectively (we note that they are not observation errors), to show the night-to-night spread of the data per LST bin. The correlation between the simulated power from the two models and the excess variance show a moderate correlation but it is not strong, due to the limited sample size and night-to-night spread of the data.