Twice the PDF of cos ϕ, the cosine of the angle between the spin of the central galaxy and the total orbital momentum of its satellites for 0.3 < z < 0.8 for different mass (left panel) and radius R_gs bins (middle panel). For massive central galaxies, the orbital angular momentum of satellites tends to align with the galactic spin of the central, especially in its vicinity. Right panel: excess PDF of for different radius bins, with and the circular velocities of the satellites system and of the central galaxy respectively. Satellites increase their circular velocity andsynchronize with their central as they reach the inner halo.