Number of convergent solutions at the ΔV′≤ 6 m s⁻¹ limit from the backward integration of six small members with Yarkovsky clones and the nominal orbit of (525) Adelaide. The blue histogram provides differential distribution using 2 kyr bins (maximum normalised to unity); the red curve is the respective cumulative distribution. The thin vertical red line shows the median epoch of the cumulative distribution, the vertical dashed lines are 5 and 95% limits. The time is at the abscissa to the past.