\begin{table}%T5
\caption{\label{tab:hd137949}Mean longitudinal magnetic field for the time series of~HD~137949.
}
%\centering
\par
\begin{tabular}{crr|crr}
\hline\hline
MJD &\multicolumn{1}{c}{$\left<{\cal B}_z\right>$}&\multicolumn{1}{c}{$\sigma{}_z$} 
&MJD&\multicolumn{1}{c}{$\left<{\cal B}_z\right>$} &\multicolumn{1}{c}{$\sigma{}_z$}\\
&\multicolumn{1}{c}{[G]}&\multicolumn{1}{c}{[G]} & &\multicolumn{1}{c}{[G]}&\multicolumn{1}{c}{[G]} \\
\hline
52~383.341268 & 2111 & 47 &	52~383.371795 & 2193 & 51 \\
52~383.343093 & 2161 & 47 &	52~383.373714 & 2003 & 54 \\
52~383.344925 & 2204 & 51 &	52~383.375634 & 2092 & 51 \\
52~383.346754 & 2078 & 51 &	52~383.377559 & 2279 & 54 \\
52~383.348591 & 2154 & 54 &	52~383.379490 & 2107 & 54 \\
52~383.350428 & 2132 & 51 &	52~383.381451 & 2105 & 54 \\
52~383.352264 & 2154 & 57 &	52~383.383430 & 2108 & 51 \\
52~383.354154 & 2121 & 51 &	52~383.385404 & 2140 & 57 \\
52~383.356050 & 2246 & 51 &	52~383.387515 & 2190 & 54 \\
52~383.357898 & 2154 & 54 &	52~383.389743 & 2164 & 47 \\
52~383.359796 & 2159 & 47 &	52~383.391962 & 2139 & 47 \\
52~383.361710 & 2223 & 47 &	52~383.394179 & 2072 & 47 \\
52~383.363619 & 2162 & 47 &	52~383.396398 & 2168 & 47 \\
52~383.365523 & 2138 & 47 &	52~383.398609 & 2113 & 47 \\
52~383.367434 & 2198 & 51 &	52~383.400823 & 2132 & 47 \\
\hline
\end{tabular}
\end{table}