Fig. 7
Distribution of the Q/S-complex group in the perihelion (q) versus diameter space. The Q-type (plotted with blue) asteroids which are considered to have fresh surfaces are shown in comparison with S/Sr/Sv/Sa-types (plotted with red) which have surfaces affected by space-weathering. The Sq-type (plotted with magenta) is an intermediate class between S-types and Q-type. For the clarity of the figure, the axis limits do not include Sq-type asteroid 25 916 (2001 CP44) which has a diameter of 5.6 km and a perihelion of 1.286 A.U.
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