\begin{table}%t3
%\centering
\par
{%\scriptsize
\caption{\label{IOMC:radialvtable}Radial velocities obtained for the primary (1) and the secondary components~(2).}
  \begin{tabular}{ccc}
    \hline \hline \noalign{\smallskip}
\multicolumn{1}{c}{HJD$-2~400~000$} & \multicolumn{1}{c}{$RV_{1}$~(km~s$^{-1}$)} &
\multicolumn{1}{c}{$RV_{2}$~(km~s$^{-1}$)}\\
\hline
   53271.6872 & $+$180.87 & $-$125.13 \\
   53272.7286 & $-$103.84 & $+$177.81 \\
   53273.7860 & $+$188.05 & $-$158.08 \\
   53275.6659 & $-$141.83 & $+$190.85 \\
   53278.6415 & $-$137.75 & $+$208.62 \\
   53280.7467 & $-$162.68 & $+$203.43 \\
   53281.6124 & $-$121.20 & $+$235.58 \\
   53281.7662 & $+$156.63 & $-$119.48 \\
   53282.6452 & $+$182.05 & $-$159.53 \\
   53301.6292 & $+$159.51 & $-$146.73 \\
   53308.6291 &  $-$71.43 & $+$160.49 \\
   53684.7073 & $+$201.79 & $-$176.26 \\
   53686.6018 & $-$107.92 & $+$226.31 \\
   53690.6289 & $+$188.68 & $-$152.36 \\
   53691.6825 &  $-$75.28 & $+$212.21 \\
   53693.5844 & $+$161.95 & $-$208.17 \\
   53873.9388 & $+$157.45 & $-$197.33 \\
   54044.5790 & $+$191.78 & $-$159.58 \\
\hline
\end{tabular}}
\end{table}