Differential size distribution of the identified features’ volume in logarithmic scale. Two powerlaws are fitted to the data, which have slopes equal to α = 1.53 ± 0.03 with a goodness-of-fit χ² = 3.43 and α = 2.53 ± 0.22 with a goodness-of-fit χ² = 1.28. The first slope is fitted over 3542 data points in the range between 1.85 × 10²¹ and 10²³ cm³, whereas the second over 137 data points in the range between 10²² and 10²⁴ cm³. In the right corner the cumulative of the resolved volume is plotted, that is, N( <x) = f(x).