Distribution of normalized magnitude differences between repeat observations in Pristine. The gray data corresponds to the reduced, calibrated data, while the black histogram also includes a systematics uncertainty floor of 13 mmag, added in quadrature to the photometric uncertainties coming out of the pipeline. The black histogram is a good approximation of the expected distribution (red line) but shows a small fraction of objects in the tails of the distribution produced by incompatible repeat observations (variable stars, artifacts, etc.). These represent ~7.5% of repeats.