\begin{table}%t1
\caption{\label{tab:obs}Journal of observations for 2008 and 2009 (2007 observations are described in P08).}
%\centerline
 \begin{tabular}{cccccc}
\hline\hline
Year & Julian date & Exp. time & $\sigma_{\rm LSD}$ & Rot. phase \\
 & (2~450~000+) & s & $10^{-5}I_{\rm c}$ & & \\
\hline
2008 & 4696.49 & 1600.0 & 6.7268   & 0.6133 \\
 &4701.41 & 1600.0 & 9.2876   & 0.1726 \\
 &4702.48 & 1600.0 & 3.8056   & 0.2936 \\
 &4703.45 & 1600.0 & 3.8787   & 0.4040 \\
 &4704.50 & 1600.0 & 4.0409   & 0.5237 \\
 &4725.39 & 960.0   & 5.0916   & 0.8975 \\
 &4725.41 & 960.0   & 5.1507   & 0.8991 \\
 &4725.42 & 960.0   & 5.1279   & 0.9006 \\
 &4725.43 & 960.0   & 5.1300   & 0.9021 \\
 &4726.38 & 1600.0 & 4.3341   & 0.0093 \\
 2009 &4984.61 & 1600.0 & 4.9114   & 0.3538 \\
 &4985.61 & 1600.0 & 4.8112   & 0.4673 \\
 &4986.57 & 1600.0 & 4.8541   & 0.5763 \\
 &4995.55 & 1600.0 & 11.8554 & 0.5970 \\
 &5002.59 & 1600.0 & 4.4350   & 0.3965 \\
 &5002.61 & 1600.0 & 9.0171   & 0.3988 \\
 &5005.58 & 2400.0 & 4.4490   & 0.7373 \\
 &5006.58 & 2400.0 & 14.8898 & 0.8504 \\
 &5010.54 & 2400.0 & 4.5288   & 0.3001 \\
 &5011.53 & 2400.0 & 4.8640   & 0.4129 \\
 &5013.57 & 1600.0 & 4.9603   & 0.6446 \\
 &5017.61 & 2400.0 & 5.1851   & 0.1043 \\
 &5018.62 & 2400.0 & 4.8179   & 0.2188 \\
\hline
\end{tabular}
\par
\smallskip
Notes: from left to right, we list the year of observation, the Julian date, the exposure time, the error-bar in Stokes $V$ LSD profiles, and the phase of the rotational cycle at which the observation was made, taking the same rotation period and phase origin as P08.
\end{table}