\begin{table}%t2
  \caption{Main parameters used for the globular clusters \citep[from][]{Gra2001,Carr2004}.}
  \label{ClusterData}
 %\centerline
 { \begin{tabular}{lcccc}
    \hline\hline
    \noalign{\smallskip}
Cluster ID   & Type$^{a}$ & $T_{\rm eff}$ (K)& $\log g$ & $\xi$ (km s$^{-1}$)  \\
    \noalign{\smallskip}
    \hline
    \noalign{\smallskip}
NGC~104 / 47~Tuc & SG &  5134  & 3.65  & 0.90 \\
                 & TO &  5832  & 4.05  & 1.07 \\
NGC~6752         & SG &  5347  & 3.54  & 1.10 \\
                 & TO &  6226  & 4.28  & 0.70 \\
NGC~6397         & SG &  5478  & 3.42  & 1.32 \\
                 & TO &  6476  & 4.10  & 1.32 \\
    \hline
  \end{tabular}}
$^{a}$ SG = subgiants, TO = turnoff stars.
\end{table}