Probability distribution of Solution 8 in the cross-section of parameters K_d (in km s⁻¹) and Q. The small cross in the centre of the figure corresponds to the highest probability which is in the values given in Table 2, the axes are labeled in differences from these values. The centre of the probability ellipse obtained from the moments of the distribution is shifted to a higher value of Q. The three isolines give limits of 1, 2, and 3-σ probability, which admits even higher values of Q.