Observational error distributions of the LightPred model vs. the ACF model. The left panel shows all of the samples (108,785 samples), and the right panel shows a subsample of 36,154 points with no planet-hosting stars, eclipsing binaries (EBs), and where ACF was able to predict all of the segments, i.e., the ACF effectively could not predict a rotation period for the majority of the data.