Asymmetry of the Brγ-emitting region of S CrA N. Left : Pure-line differential phases. The pure line differential phases are depicted by blue-to-red color coded symbols for August 19 (circles) and August 20 (squares), while the observed phases for each individual observation (similar to Fig. 2) are depicted in solid lines, with their color corresponding to their baseline. Right : On-sky photocenter shifts with respect to the continuum photocenter (in (0, 0) as a function of velocity (coded from blue to red colors). The light-yellow cones correspond to the uncertainties on the major axis orientation of the inner dusty disk. The background symbols are the displacements obtained from individual files.