Left: parameter maps of the 1−0 S(1) line obtained through regularized 3D fitting. Sgr A* is indicated by the cross. The line flux color bar is in 10^-19 W m^-2 arcsec^-2. Velocity and width color bars are in km s^-1. The white contour traces the Brγ emission of the minispiral at 2 × 10^-16 W m^-2 arcsec^-2. The dashed areas cover stars zones that have been interpolated. Red dots indicate the position of Wolf-Rayet stars: stars show type WN and triangles type WC (Paumard et al. 2006 catalog). The solid black areas indicate regions of which we lack observations. GCIRS 7 is covered by the central black square. The solid black line in the velocity maps indicates points at zero velocity. Right: signal-to-uncertainty ratio (S/U) maps for flux and width maps, uncertainty map for velocity.