\begin{table}%T2
%\centering
\small
\caption{Journal of TBL observations, with epochs, exposure times and a comparison (O$-$C) between the
measured radial velocities ($v_{\rm r, O}$) and predicted radial velocities ($v_{\rm r, C}$) based on the ephemeris and amplitudes of
Paper~III. Note that these values correspond reasonably well, provided that a constant difference of $14\pm1$~km~s$^{-1}$ for the system velocity is taken into account.}
\label{obs}
\begin{tabular}{l@{\ }l@{\ }ccrrr}
\hline
\hline
Nr.& \multicolumn{1}{c}{Date}     & Mid HJD    & Exp. & \multicolumn{1}{c}{$v_{\rm r, O}$} & \multicolumn{1}{c}{	$v_{\rm r, C}$} & \multicolumn{1}{c}{O$-$C}\\
   &          & $-$2~450~000 & s & \multicolumn{1}{c}{km~s$^{-1}$} & \multicolumn{1}{c}{km~s$^{-1}$} & \multicolumn{1}{c}{km~s$^{-1}$}\\
\hline
1a & 2003 Feb. 8 & 2679.300 & 600 & $-$9.7 & $-$20.5 & 10.8\\
1b &          & 2679.308 & 600 & $-$0.9 & $-$11.7 & 10.8\\
1c &          & 2679.316 & 600 &    7.4 &  $-$2.3 &  9.7\\
1d &          & 2679.323 & 600 &   16.7 &     6.1 & 10.6\\
2a & 2003 Oct. 25 & 2937.530 & 900 &   22.4 &     8.2 & 14.2\\
2b &          & 2937.548 & 900 &   31.2 &    16.6 & 14.6\\
2c &          & 2937.559 & 900 &   36.6 &    23.1 & 13.5\\
2d &          & 2937.570 & 900 &   43.4 &    31.5 & 11.9\\
3a & 2004 Feb. 4 & 3040.452 & 750 &   19.5 &     1.6 & 17.9\\
3b &          & 3040.461 & 750 &   14.3 &  $-$0.1 & 14.4\\
3c &          & 3040.471 & 750 &   12.3 &     1.6 & 10.7\\
3d &          & 3040.480 & 750 &   15.4 &     2.5 & 12.9\\
4a & 2004 Feb. 6 & 3042.412 & 750 & $-$3.3 & $-$16.6 & 13.3\\
4b &          & 3042.421 & 750 & $-$6.6 & $-$19.0 & 12.4\\
4c &          & 3042.430 & 750 & $-$7.6 & $-$20.7 & 13.1\\
4d &          & 3042.439 & 750 & $-$6.8 & $-$19.5 & 12.7\\
5a &  2004 Feb. 8 & 3044.445 & 750 &   50.5 &    27.8 & 22.7\\
5b &          & 3044.454 & 750 &   45.5 &    21.3 & 24.2\\
5c &          & 3044.464 & 750 &   32.3 &    10.1 & 22.2\\
5d &          & 3044.473 & 750 &   12.4 &  $-$3.5 & 15.9\\
6a & 2004 Feb. 10 & 3046.289 & 750 &    0.7 & $-$10.5 & 11.2\\
6b &          & 3046.298 & 750 &    8.3 &  $-$1.4 &  9.7\\
6c &          & 3046.308 & 750 &   15.9 &     8.0 &  7.9\\
6d &          & 3046.317 & 750 &   23.4 &    14.5 &  8.9\\
7a & 2004 Feb. 12 & 3048.413 & 750 &   27.6 &    14.2 & 13.4\\
7b &          & 3048.422 & 750 &   29.5 &    14.4 & 15.1\\
7c &          & 3048.431 & 750 &   30.9 &    14.9 & 16.0\\
7d &          & 3048.441 & 750 &   33.5 &    18.2 & 15.3\\
8a & 2004 Feb. 14 & 3050.272 & 750 &    9.8 &  $-$6.6 & 16.4\\
8b &          & 3050.282 & 750 &   13.6 &  $-$1.9 & 15.5\\
8c &          & 3050.291 & 750 &   18.3 &     3.6 & 14.7\\
8d &          & 3050.300 & 750 &   23.2 &     8.8 & 14.4\\
\hline
\end{tabular}
\end{table}