\begin{table}%t1
%\centering
\par
\caption{Journal of the spectroscopic observations.
The columns display the Heliocentric Julian Day, 
the exposure time (min), the length of the observation~(d), the number of spectra 
and the spectral line used for the radial velocities measurements.\label{journal}}
\begin{tabular}{rrccc}
\noalign{\smallskip}
\hline
\hline
\noalign{\smallskip}
\multicolumn{1}{c}{2~400~000+} &
\multicolumn{1}{c}{exposure} &
\multicolumn{1}{c}{length} &
\multicolumn{1}{c}{spectra} &
\multicolumn{1}{c}{line} \\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
48~538.4071 & 8.0--15.0 & 0.08 &   9  & SiIII 4567~\AA\ \\
48~539.5095 &     15.0 & 0.15 &  11  & SiIII 4567~\AA\ \\
48~851.5500 &      1.0 & 0.16 & 103  & SiIII 4567~\AA\ \\
48~854.7287 & 2.5--3.3 & 0.18 &  55  & SiIII 4567~\AA\ \\
48~857.5272 & 2.0--8.3 & 0.22 &  57  & SiIII 4567~\AA\ \\
48~884.5563 & 3.0--6.0 & 0.23 &  56  & SiIII 4567~\AA\ \\
48~887.4727 & 3.3--10.0 & 0.11 &   5  & SiIII 4567~\AA\ \\
49~201.5383 & 1.7--10.0 & 0.16 &  40  & SiIII 4567~\AA\ \\
49~202.5371 & 0.8--10.0 & 0.17 &  45  & SiIII 4828~\AA\ \\
49~203.5476 & 1.2--7.5 & 0.17 &  73  &   SII 5320~\AA\ \\
49~204.5271 & 2.8--10.0 & 0.17 &  19  & SiIII 4567~\AA\ \\
49~205.5616 & 1.7--10.0 & 0.14 &  29  & SiIII 4828~\AA\ \\
49~206.5616 & 1.7--10.0 & 0.15 &  34  & SiIII 4828~\AA\ \\
49~207.5367 & 2.0--6.7 & 0.18 &  44  &   SII 5453~\AA\ \\
49~208.5383 & 3.2--10.0 & 0.19 &  32  & SiIII 4567~\AA\ \\
49~969.4953 & 4.5--10.8 & 0.32 &  59  & SiIII 4567~\AA\ \\
49~970.4938 & 3.3--8.0 & 0.32 &  64  & SiIII 4567~\AA\ \\
49~974.5765 & 9.0--15.0 & 0.33 &  16  & SiIII 4567~\AA\ \\
49~975.5270 & 3.8--15.0 & 0.25 &  40  & SiIII 4567~\AA\ \\
49~976.5134 & 3.7--7.2 & 0.25 &  56  & SiIII 4567~\AA\ \\
49~977.5239 & 3.3--8.3 & 0.27 &  47  & SiIII 4567~\AA\ \\
49~978.5221 & 3.3--11.7 & 0.25 &  50  & SiIII 4567~\AA\ \\
49~981.4696 & 5.4--11.7 & 0.29 &  56  & SiIII 4567~\AA\ \\
53~418.2773 & 5.0--6.0 & 0.05 &  12  & SiIII 4567~\AA\ \\
53~536.5505 &      1.7 & 0.08 &  66  & SiIII 4567~\AA\ \\
\hline
\end{tabular}
\end{table}