Histogram for the deviation (in arcminute) between the ephemerides generated using the orbital parameters estimated from Fink-FAT trajectories (pure trajectories from full orbit determination), and the ephemerides generated using the orbital parameters taken from MPC for the corresponding objects. We vary the time from the last observation to the computed ephemeris for each trajectory: Δt = 7 days after the last observation (blue), Δt = 30 days (orange), Δt = 120 days (green), and Δt = 360 days (red). The median of each distribution is shown as dashed vertical line.