Left panel: PDF of μ₁ = cos θ₁, the angle between the minor axis of the central galaxy and the vector separating it from its satellites, at 0.3 < z < 0.8 and for different colour bins. Right panel: PDF of ν = cos α, the angle between the satellite separation vector and the direction of the nearest filament. The average central galaxy mass in each colour bin is also indicated. For massive red central galaxies, the satellites tend to be distributed on the galactic plane. The filamentary trend is also recovered although degraded by projection for the bluest central colour range.