Distribution of the noise level of the angular momentum J_att at distinct attractor points calculated for grains with an effective radius a_eff = 400 nm and the different fractal dimensions of D_f = 1.6 (solid green), D_f = 2.0 (solid red), and D_f = 2.4 (solid blue), respectively, dependent on the number of collisions N_coll. All data points are normalized by the corresponding results at N_coll = 10⁴. Solid lines are the average of all J_att while the shaded areas represent the minima and maxima of the noise level per N_coll. Horizontal black lines indicate the range of ±2.6 %.