\begin{table}%t1
 \caption{Event excesses $s-\alpha b$ and significances $S$ derived using the template and displacement background models for a number of established TeV $\gamma$-ray sources. The source region is defined by the cut $\theta<\theta_{\rm cut}$. $s$: $\gamma$-ray-like events; $b$: background estimate; $\alpha$: normalisation. Datasets are from the HEGRA CT-System archive; Cas~A (212 hours), 
H1426+428 (42 hours, 1999/2000), 1ES1959+650 (94 hours, 2000/2001),
Crab (33~hours).}
  %\begin{center}
{\begin{tabular}{lcccccccr} \hline \hline
  Source  & RA [hr]$^a$ & Dec [deg]$^a$ & $\theta_{\rm cut}$ [deg] &  $s$ & $b$ & $\alpha$ & $s-\alpha b$ & $S$ [$\sigma$]$^b$ \\ \hline \\
  \multicolumn{9}{c}{-- Template background (full correction: Eq. (\ref{eq:bcorrz})) --}\\
 Cas-A & 23.390 & 58.82  & 0.12 & 1364 & 4649 & 0.258 & {\bf 165} & {\bf +4.2} \\   H1426+428   & 14.476 & 42.67  & 0.12 & 385  &  954 & 0.295 & {\bf 104} & {\bf +5.1} \\  
  1ES1959+650 & 20.000 & 65.15  & 0.12 & 571  & 2236 & 0.210 & {\bf 101} & {\bf +4.1} \\
  Crab        &  5.576 & 22.01  & 0.12 & 1756 &  884 & 0.282 & {\bf 1507}& {\bf +48.9} \\ \\
  \multicolumn{9}{c}{-- Displacement background --}\\         % ALL using ring Pos ang. 135 to 165 deg
  Cas-A       & && 0.12 & 1364 & 6092	  & 0.197 & {\bf 164} & {\bf +4.2} \\
  H1426+428   & && 0.12 & 385  &  997	  & 0.283 & {\bf 103} & {\bf +5.1} \\ 
  1ES1959+650 & && 0.12 & 571  & 2437	  & 0.201 & {\bf 81}  & {\bf +3.2} \\ 
  Crab        & && 0.12 & 1756 & 1281	  & 0.226 & {\bf 1466}& {\bf +48.2}  \\ \hline
\end{tabular}} \label{tab:results} 
  \parbox{13.cm}{
  $^{a}$ J2000 epoch.\\
  $^{b}$ Statistical significance from Eq. (\ref{eq:signif}).}
  %\end{center}
\end{table}