\begin{table}%t1 \caption{\label{Tab1}Proper orbital elements and physical parameters for Pallas and 9 Pallas family members classified as B-types.} %\centering \par \begin{tabular}{l c c c c c c} \hline\hline\noalign{\smallskip} Ast. & $a$ & $e$ & $i$ & $H$ & $p_{\rm v}$ & $D$ \\ Num. & (AU) & & ($^{\circ}$) & & & (km)\\ \hline 2 & 2.771 & 0.281 & 33.198 & 3.93 & 0.16 $\pm$ 0.01 & 546.02 \\ 531 & 2.786 & 0.254 & 33.055 & 11.80 & 0.15 $\pm$ 0.01 & 15.19 \\ 2382 & 2.759 & 0.274 & 32.949 & 11.12 & 0.15\tablefootmark{a} & 26.00 \\ 3579 & 2.733 & 0.283 & 33.089 & 13.83 & 0.15\tablefootmark{a} & 5.88 \\ 5222 & 2.775 & 0.277 & 32.688 & 11.11 & 0.15 $\pm$ 0.01 & 21.92 \\ 5234 & 2.760 & 0.271 & 33.123 & 11.98 & 0.15\tablefootmark{a} & 13.78 \\ 5330 & 2.764 & 0.261 & 31.848 & 11.94 & 0.22 $\pm$ 0.04 & 12.00 \\ \hline 3200 & 1.271 & 0.889 & 22.184 & 14.51 & 0.11 $\pm$ 0.01 & 5.10 \\ \hline 3581$^b$ & 2.771 & 0.409 & 28.810 & 12.10 & 0.15$^a$ & 13.04 \\ 5690$^b$ & 2.804 & 0.379 & 28.956 & 12.50 & 0.15$^a$ & 20.85 \\ 6500$^b$ & 2.756 & 0.417 & 29.282 & 12.50 & 0.15$^a$ & 10.85 \\ \hline \end{tabular} \tablefoot{ \tablefoottext{a}{For those objects that do not have IRAS albedo information, we have used the nominal value 0.15. $^{(b)}$ Although classified as Mars-crossers, we show in the main text that these 3 asteroids belong in fact to the Pallas family. As in the case of Phaethon, osculating orbital elements have been used.}} \end{table}