Typical illumination of the nucleus during the lander delivery phase of the Rosetta mission (Nov. 2015), calculated on the ellipsoid reference shape from Lamy et al. (2007). The dotted lines indicate the latitudes of active regions determined by COSSIM. Depending on how different the real shape is from an ellipsoid local illumination conditions will vary, but overall the northern hemisphere will be the most illuminated at that time.