Left plot: light curve of GJ3470b gathered with the blue channel of LBC in the U_spec band, plotted with the original sampling cadence (upper panel; the black line corresponds to the best-fit model adopted in Table 1) and residuals from the best-fit model (lower panel). Right plot: same as the left plot, but in the F972N20 band of the red channel of LBC. The two light curves are simultaneous.