Left: distribution of the differential velocity vector between the alpha particles and proton core in the RT-plane. Middle: distribution of IMF vectors in the RT-plane. Right: distribution of the differential velocity vector between the alpha particles and proton core with respect to the IMF. The IMF points along the y-axis, the sign of the IMF (inward or outward from the Sun) is inconsequential. All observations were averaged over three-hour intervals, as done previously when calculating the AM flux. Data from the fast (F1 and F2) and slow (S1 and S2) wind streams are highlighted in orange and cyan, respectively.