Spot filling factor maps for 2005 January–2010 April. In light curve plots, the crosses denote the observations and the solid line the inversion result. In the spot-filling factor maps, the darker colour means a larger spot filling-factor. In both plots, the x-axis is longitude in degrees, the y-axis in the light curve plots is V magnitude, and in the spot-filling factor maps latitude in degrees. The mean Julian Date (HJD−2 400 000) of the observations for each set is given above the light curve plots.