\begin{table}%t1 \caption{\label{tab:observations}Journal of observations.} %\centering \par \begin{tabular}{llccrr} \hline \hline \noalign{\smallskip} Date & MJD\tablefootmark{a} & Phase\tablefootmark{b} & Elapsed orbits\tablefootmark{b} & RV$_{\rm abs}$ (km~s$^{-1}$) & RV$_{\rm em}$ (km~s$^{-1}$) \\ \hline 29/06/2008 & 54~646.1846 & 0.33 & 0.33 & $+$54 $\pm$ $9$ & $-$232 $\pm$ $7$ \\ 18/07/2008 & 54~665.0356 & 0.37 & 2.37 & $+$39 $\pm$ $8$ & $-$246 $\pm$ $18$ \\ 24/07/2008 & 54~671.1343 & 0.03 & 3.03 & $-$50 $\pm$ $11$ & -- \\ 14/08/2008 & 54~692.0423 & 0.28 & 5.28 & $+$74 $\pm$ $13$ & $-$224 $\pm$ $14$ \\ 04/09/2008 & 54~713.0107 & 0.55 & 7.55 & $-$120 $\pm$ $5$ & $+$127 $\pm$ $29$\tablefootmark{c} \\ 15/09/2008 & 54~724.0818 & 0.74 & 8.74 & $-$200 $\pm$ $9$ & $+$163 $\pm$ $11$ \\ 19/09/2008 & 54~728.0554 & 0.17 & 9.17 & $+$56 $\pm$ $4$ & $-$225 $\pm$ $17$ \\ 25/09/2008 & 54~734.0613 & 0.82 & 9.82 & $-$173 $\pm$ $7$ & $+$164 $\pm$ $9$ \\ 14/05/2009 & 54~965.1768 & 0.76 & 34.76 & $-$214 $\pm$ $14$ & $+$137 $\pm$ $8$ \\ 18/05/2009 & 54~969.3198 & 0.21 & 35.21 & $+$76 $\pm$ $13$ & $-$242 $\pm$ $7$ \\ 20/08/2009 & 55~063.0575 & 0.32 & 45.32 & $+$78 $\pm$ $11$ & $-$217 $\pm$ $16$ \\ \hline \end{tabular} \tablefoot {\tablefoottext{a}{Modified Julian day at the midpoint of two 600~s integrations (2~$\times$ 500~s, 04/09/2008; 1~$\times$ 600~s~+ 1~$\times$ 700~s, 19/09/2008).} \tablefoottext{b}{Phase taking $T_0$~= 54~643.080, elapsed orbits for an orbital period of 9.271d (see Sect.~\ref{sec:rv}).} \tablefoottext{c}{Unreliable due to the appearance of a central reversal in the emission line, and excluded from the fit to the RV~curve.}} \end{table}