Distribution of the TNOs and Centaurs whose orbits were refined (red circles, orange diamonds, blue triangles, and magenta pentagons), along with others taken from the MPC (small back dots), in the a × e plane. Some mean motion resonances (MMR) with Neptune are also indicated. Objects discovered by the DES are given by orange diamonds (Centaurs) and magenta pentagons (TNOs). The black square shows the scattered disk object 2004 XR190, not observed by the DES.