\begin{table}%t2
\caption{\label{tab:obslog}Observing log.}
%\centering
\par
\begin{tabular}{lcrr}
\hline\hline
Target         & Obs-ID & \multicolumn{1}{c}{UT Start [hh:mm:ss]} & Expo [ks] \\ \hline
Gl~569~Bab   & 4470 & 2004-06-18~~05:59:44 & 25.2 \\
HD~130948~BC & 4471 & 2004-11-24~~07:45:33 & 42.5 \\
               & 6166 & 2004-11-27~~09:22:07 &  7.3 \\
HR7329~B      & 4472 & 2004-08-06~~12:44:55 & 47.0 \\ \hline
\end{tabular}
\end{table}