Velocity gradients of the individual coherent structures (see Fig. 1). Top left: LA1.1 and LA1.2 are located close to the Magellanic Clouds. Their ensemble properties are unique, and they dislose a rising v_GSR velocity with increasing l_MS. Top right: LA1.3 shows the strongest velocity gradient, consistent with the impact hypothesis proposed by McClure-Griffiths et al. (2008). Middle panel: LA2 (left panel) and LA3 (right panel) are localized at large Magellanic stream longitudes. Bottom left: the newly classified feature LA4 shows a velocity gradient comparable to LA2 and LA3 despite its close location to the Magellanic Clouds. Bottom right: those cataloged objects not accounted to the coherent structures defined in Fig. 1 disclose the same overall velocity gradient implying their association with the LA.