\begin{table}%T4
\caption{\label{stat}Spearman correlation.}
\small%\centerline
{
\begin{tabular}{lccc}
 \hline\hline
 Class & $\rho$ & $P_{\rm r}$ & $n$\\ 
 \hline
 {\bf Centaurs} & & & \\
$S$ vs. $i$ &   --0.00451293  &   0.98495& 20 \\
$S$ vs. $e$ &  0.430989  &  0.0578041& 20\\
$S$ vs. $a$ & 0.0691989  &   0.771903& 20\\
$S$ vs. $H$ &  0.398494  &  0.0818076& 20\\
$S$ vs. $q$ &  --0.0910117  &   0.702757& 20\\
 {\bf Classicals} & & &\\
{\boldmath{$S$ vs. $i$}} & {\bf --0.641537}  & {\bf 0.000176407} & {\bf 29} \\
{\boldmath{$S$ vs. $e$}} & {\bf --0.510963}  & {\bf 0.00461781}   & {\bf 29} \\
$S$ vs. $a$ &  --0.109633 &   0.571303 & 29 \\
$S$ vs. $H$ & --0.0892836 &  0.64510& 29 \\
$S$ vs. $q$ &  0.430648   & 0.0196961 & 29 \\
 {\bf Resonants} & & &\\
$S$ vs. $i$ & --0.393407   &  0.164032 & 14 \\
{\boldmath{$S$ vs $e$}}&  {\bf 0.767033}   & {\bf 0.00136768} & {\bf 14} \\
$S$ vs. $a$ &   0.560440   &  0.0371045& 14 \\
$S$ vs. $H$ & 0.382838   & 0.176678 & 14 \\
$S$ vs. $q$ &   0.142857  &  0.626118 & 14 \\
 {\bf SDOs} & &  &\\
$S$ vs. $i$ &   --0.542857  &   0.265703 & 6 \\
{\boldmath{$S$ vs $e$}} &  {\bf --0.885714}   & {\bf 0.0188455} & {\bf 6} \\
$S$ vs. $a$ &  --0.657143   &  0.156175 & 6 \\
$S$ vs. $H$ & 0.0857143    & 0.871743 & 6 \\
$S$ vs. $q$ &  --0.0857143  &   0.871743 & 6 \\
 {\bf Detached Objs} & & &\\
$S$ vs. $i$ &   --0.200000  &   0.800000 & 4 \\
$S$ vs. $e$ &   0.00000    &  1.00000 & 4 \\
$S$ vs. $a$ &  --0.400000   &  0.600000 & 4\\
$S$ vs. $H$ & 0.800000     & 0.200000 & 4 \\
$S$ vs. $q$ &  --0.400000   &  0.600000 &  4 \\
 \hline
\end{tabular}}
\smallskip
  Spearman correlation results of the spectral slope $S$, orbital parameters (inclination $i$, eccentricity $e$, semimajor axis $a$, perihelion $q$), and absolute magnitude $H$. $\rho$ is the Spearman rank correlation, $P_{\rm r}$ is the significance level, and $n$ the number of objectsused in the statistical analysis. Strongest correlations are in bold.  
\end{table}