\begin{table}%t1 \caption{\label{table:fields}Positions and total integration times of the observed ON and OFF~fields.} \par \small%\centerline { \begin{tabular}{llllll} \hline\hline Field & centre position & $t$($J$) & $t$($H$) & $t$($K$s) & $A_{\rm V}$ \\ & (J2000) & (min) & (min) & (min) & (mag) \\ \hline ON-1 & $19^{\rm h}0^{\rm m}42^{\rm s}$, $-37\degr 0\arcmin 54\arcsec$ & 26 & 37.5 & 97.5 & -- \\ ON-2 & $19^{\rm h}0^{\rm m}47^{\rm s}$, $-36\degr 57\arcmin 54\arcsec$ & 25.5 & 37.5 & 97.5 & -- \\ OFF-1 & $18^{\rm h}58^{\rm m}14^{\rm s}$, $-36\degr 50\arcmin 11\arcsec$ & 11 & 16 & 35 & 0.45 \\ OFF-2 & $18^{\rm h}58^{\rm m}15^{\rm s}$, $-36\degr 34\arcmin 43\arcsec$ & 12 & 16 & 35 & 0.35 \\ OFF-3 & $18^{\rm h}56^{\rm m}59^{\rm s}$, $-36\degr 53\arcmin 5\arcsec$ & 5.5 & 8 & 35 & 0.33 \\ \hline \end{tabular}} \medskip The last column gives list for the OFF~fields the extinction estimates of Schlegel et~al. (\cite{SFD}). \end{table}