(Top) Heliocentric orbit of (19192) 1992 DY5 and close encounters experienced within its data arc. (Bottom) Correlated estimates of the masses of 106 Dione and 380 Fiducia given by (19192) 1992 DY5 as test asteroid (yellow), estimates from other test asteroids (blue, orange if rejected) and the final estimates (black). The ellipse and error bars correspond to 1σ levels of uncertainty.