Total spotted area as derived from the ME best fits to the light curve de-trended with the method of Bonomo & Lanza (2012) vs. time (green filled circles). The error bars have an amplitude of 3σ, where σ is the standard deviation as derived from the photometric accuracy of the datapoints. Values for the intervals with δ >  0.2 have been excluded. The best fitting sinusoid with a period of 47.906 days is superposed to the time series (red solid line).