\begin{table}%t5 \par \caption {\label{tab:photJ1807}Upper limits ($3\sigma$) on the presence of a source at the X-ray position of XTE J1807$-$294. } %\centerline {\begin{tabular}{ccccc} \hline\hline Filter &${\lambda}_{\rm c}$& Limiting magnitude & $A_{\lambda}$ & Absolute mag \\ & (\AA) & & (mag) & \\ \hline $V$ & 5270 & $> $$24.3$ & $2.38 \pm 0.05$ & $>$$ 7.4$ \\ $R$ & 6440 & $> $$24.2$ & $1.86 \pm 0.05$ & $> $$7.8$ \\ $J$ & 12500 & $> $$19.7$ & $0.63 \pm 0.05$ & $> $$4.6$ \\ \hline \end{tabular}} \par \smallskip Values in column three are uncorrected for reddening. In column four the dereddening parameters used to correct our optical photometry computed assuming $E(B-V)=0.79 \pm 0.05$~mag are reported. The absolute magnitudes are computed assuming a distance of 8~kpc (Campana et~al. 2005; see Sect.~4.2.1 for details). \end{table}