\begin{table}%T11
%\centering
\small
  \caption{The number of background stars expected {\em per field of view} for each of the three imaging surveys discussed in this paper, according to our model. The field of view size is 361.2~arcsec$^2$ for KO5, 196.0~arcsec$^2$ for KO6, and 280.1~arcsec$^2$ for SHT. We list the results for three different pointings: to the centers of the three subgroups US, UCL, and LCC, and for the intersection of LCC with the Galactic plane. Columns~4, 6, and 8 list the number of background stars brighter than $K_{\rm S}=12$~mag {\em per field of view}. Columns~5, 7, and 9 list the number of background stars brighter than $K_{\rm S}=18$~mag {\em per field of view}. The last column lists for each group the value of the normalization constant $C$ in Eq.~(\ref{equation:backgroundstarsformula}). \label{table: backgroundstarcounts}}
  \begin{tabular}{l cc cc cc cc l}
    \hline
    \hline\\[-3.2mm]
    Group            & $l$ & $b$                 & $N_{\rm KO5}$ & $N_{\rm KO5}$ & $N_{\rm KO6}$ & $N_{\rm KO6}$ & $N_{\rm SHT}$ & $N_{\rm SHT}$ & $C$ (arcsec$^{-2}$) \\
    \multicolumn{3}{l}{$K_{\rm S}$ limit}        & ${<} 12$ mag& ${<}18$ mag & ${<}12$ mag & ${<}18$ mag & ${<}12$ mag & ${<}18$ mag& \\ 
    \hline\\[-3.2mm]
    US               & $352^\circ$ & $20^\circ$  & 0.002 & 0.19  & 0.001 & 0.10  & 0.002 & 0.15 &  $1.93 \times 10^{-9}$  \\
    UCL              & $328^\circ$ & $13^\circ$  & 0.010 & 0.87  & 0.006 & 0.47  & 0.008 & 0.67 &  $8.71 \times 10^{-9}$  \\
    LCC              & $299^\circ$ & $6^\circ$   & 0.016 & 1.35  & 0.009 & 0.73  & 0.013 & 1.05 &  $13.5 \times 10^{-9}$  \\
    GP               & $300^\circ$ & $0^\circ$   & 0.057 & 4.78  & 0.031 & 2.59  & 0.044 & 3.70 &  $48.0 \times 10^{-9}$  \\
    \hline
  \end{tabular}
\end{table}