\begin{table}%ta1
\caption{\label{tab:feros_bwaqr}
Log of the FEROS observations of BW~Aqr.}
%\centering
\par
%\renewcommand{\footnoterule}{}  % to avoid a line before footnotes
\begin{tabular}{ccrrr}
\hline
\hline\noalign{\smallskip}
HJD$-$2~400~000\tablefootmark{a}  & phase &$t_{\rm exp}$\tablefootmark{b} & S/N\tablefootmark{c}\\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
51393.82092& 0.1290 & 3600 & 140 \\ %    f8942  
51394.70920& 0.2612 & 3600 & 200 \\ %    f9002  
\hline
\end{tabular}
\tablefoot{\tablefoottext{a}{Refers to mid-exposure.}
\tablefoottext{b}{Exposure time in seconds.}
\tablefoottext{c}{Signal-to-noise ratio measured around 6070 {\AA}.}} 
\end{table}