S2 star and known dusty objects close to its orbit. Left panel: position of S2 and the dusty source G1 close to the pericentre of S2 around 2002. We also show the orbit of the DSO (Dusty S-cluster Object, also known as G2). The points of the sources represent colour-coded radial velocities according to the axis on the right. The grey circle in the bottom left corner represents the diffraction limited FWHM of 98 mas corresponding to NACO L′-band. Right panel: position of S2 and dusty source G1 at the pericentre passage of S2 at 2018.38. The orbital parameters were adopted from Gravity Collaboration (2018a) (S2 star), Valencia-S et al. (2015) (DSO source), and Witzel et al. (2017) (G1 source).