\begin{table}%t2
\caption{\label{tbl_vel}Radial velocity measurements of NLTT~11748.}
%\centering
\par
\begin{tabular}{cccc}
\hline\hline \noalign{\smallskip}
BJD  & $v_{\rm bary}$  & BJD  & $v_{\rm bary}$  \\
 (2~455~000+) & (km s$^{-1}$) & (2~455~000+) & (km s$^{-1}$) \\
\hline
\multicolumn{4}{c}{VLT/FORS2} \\
126.71404 & 151.4 &   126.79129 & 369.5  \\
126.72873 & 259.2 &   127.71352 & 412.2  \\
126.74520 & 354.1 &   127.72821 & 380.7  \\
126.75988 & 403.4 &   127.74863 & 286.5  \\
126.77660 & 410.7 &   127.76330 & 189.2  \\
\hline
\multicolumn{4}{c}{KPNO/R-C} \\
259.64754 &  87.1 &  260.67090 & $-$38.4   \\
259.66893 & $-$64.6 &   260.71593 & 269.0  \\
259.69331 & $-$131.7 &   261.62168 &  23.5  \\
260.62918 & $-$131.1 & &   \\
\hline
\end{tabular}
\end{table}