Contour plot showing the expected location of the rotation pole produced by inverting the lightcurves at each potential pole location. Darker colours here indicate lower chi-squared values. Ecliptic latitude and longitude are denoted by β and λ, respectively. The plot indicates that the pole is most likely located at high latitude, with two prominent and well-defined minima at λ = 78° and β =  + 58° and a 2nd unrelated solution at λ = 278° and β =  + 58°. (A colour version of this figure is available online.)