\begin{table}%t2 %\centering \par \caption{\label{tab2}Measured magnitudes of the transient in \object{Abell 1689}.} \begin{tabular}{lccc} \hline \hline \noalign{\smallskip} Date & Magnitude & Filter & Telescope/ \\ & [Vega] & & Instrument \\ \par \hline %\hline %\noalign{\smallskip} 2003 02 06 & 24.09 $\pm$ 0.20 & $I$ & VLT/FOSR2 \\ 2003-02-9/10 & 23.93 $\pm$ 0.08 & $z$ & VLT/FOSR2 \\ 2003-02-26/27 & 23.94 $\pm$ 0.09 & $z$ & VLT/FOSR2 \\ 2003 02 09 & 23.24 $\pm$ 0.08 & $SZ$ & VLT/ISAAC\\ 2003 04 27 & 23.73 $\pm$ 0.16 & $SZ$ & VLT/ISAAC\\ 2004 01/02 & $>$$24.3$--$24.4$ & $SZ$ & VLT/ISAAC\\ 2003 04 12 & 23.61 $\pm$ 0.15 & $J$ & VLT/ISAAC\\ \hline \end{tabular} \\ \end{table}