\begin{table}%t1 online
\par
%\centering
\par
\caption{\label{table:observations}Observation log.}
\par
\begin{tabular}{c c c c c c}        
\hline\hline                 
& Observation & Date       & Pos angle  & Duration & Filters  \\
\hline
SPIRE   & 1342187327 & 2009-11-30 & 154.96\degr & 3336~s & 250,350,500 \\
PACS       & 1342185457 & 2009-10-07 & 106.54\degr & 866~s &  100,160 \\
PACS       & 1342186613 & 2009-11-01 & 130.98\degr & 5506~s &  70, 160 \\
PACS       & 1342186612 & 2009-11-01 & 130.98\degr & 5506~s &  70, 160 \\
\hline     
\end{tabular}
\end{table}