Bolometric light curve for SN 2011fe (filled red circles). The open circles represent the integrated flux over the full SNIFS wavelength range and the dashed line is a cubic spline fit for determination of the date of maximum. The inset is a zoom of the area marked by a dashed box, where a quadratic rise is fit to the first 3 nights of SNIFS observations. The vertical dotted lines mark the time of observations presented by Nugent et al. (2011b).