Properties of the galaxy population in the vicinity of A963 and its infall region as a function of the azimuthal angle. Top panel: galaxy number density normalised to its maximum. The black curve shows the average K-band luminosity density in the infall region (between 1.5 R₂₀₀ and the edge of the field at ≲3 R₂₀₀). The lime green dashed line shows the mean galaxy number density between 10 and 20 R₂₀₀. Middle panel: H I deficiency in the infall region. Bottom panel: specific star formation rate (solid purple line), fraction of RQ (dashed green line), and fraction of RSF (red dotted line), expressed as a fraction of their maximum. The grey shaded areas represent the location and relative angular span of the three filaments suggested by J16.