The coordinates of the two vector peaks in the Patterson map are (u = 0.167, v = 0.365, w = 0.431) and (u = 0.833, v = 0.635, w = 0.569). It is customary to refer to Patterson map coordinates as u, v, w to distinguish them from x, y, z coordinates of a Fourier map:

If the vector peak at (0.833, 0.635, 0.569) is identified as the Patterson 2x, 2y, 2z peak, the coordinates of Br1 would be x = 0.417, y = 0.317, z = 0.284 (Br2 is at 0.583, 0.683, 0.716).