Photometric calibration of J-VAR DR1 on J-PLUS system. Shown in this plot are the results for the rSDSS filter. Left panel: difference between the median magnitude of each J-VAR light curve and the corresponding J-PLUS magnitude. Right panels: gaussian fits to the distribution of J-VAR minus J-PLUS values for different magnitude bins, identified at the top of each panel. We also provide the mean, μ, and the standard deviation, σ, of the fitted Gaussians.