\begin{table}%t1
\caption {\label{tab_photom}SDSS DR7 $z$ (on the AB system) and UKIDSS DR6 ${\it YJHK}$ 
(on the Vega system using the MKO photometric system) photometry.}
%\centering
\par
\begin{tabular}{l c c c c c c c  } 
\hline\hline
object          & mean $z$       &  $Y$    & $J$     & $H$     & $K$     \\
                &(3971+3996)    &(2325240)&(2325252)&(1906043)&(1905923)\\ 
\hline
SDSS~J141624.08$+$134826.7 (object A) & 15.897~$\pm$~0.005 & 14.255~$\pm$~0.003 & 12.995~$\pm$~0.001 & 12.469~$\pm$~0.001 & 12.053~$\pm$~0.001 \\
ULAS~J141623.94$+$134836.3 (object B) & 21.13~$\pm$~0.32$^*$ & 18.162~$\pm$~0.027 & 17.259~$\pm$~0.017 & 17.581~$\pm$~0.030 & 18.933~$\pm$~0.244 \\
\hline
\end{tabular}
\par
\smallskip
\par
\tablefoot {
$^*$  Not detected in SDSS DR7 (see text).
$z$~magnitudes 
are mean values from two SDSS runs (given in brackets).
$YJHK$~magnitudes 
are {\it{aperMag3}} derived from the multi\-frames (given in brackets)
for point sources
(Dye et~al.~\cite{dye06}). A second set of ${\it YJHK}$ 
measurements was not used due to the location of objects~A and~B close to the edge of the frames.
}
\end{table}