Influence of P0509 data uncertainty on the parameters of the previous K2 nominal orbit (solution “a9”). Black dots mark 8827 cases where the distance between K2 and P0509 is greater than 20 000 au while the 1149 orange dots show the opposite cases. Two black and 23 orange points are omitted as the extreme outliers: the maximum q_prev in this simulation is equal to 9510 au. The red marginal q_prev distribution was made for all 9976 plotted points.