\begin{table}
    \caption{Numerical summary of differential energy spectra for HESS~J1801$-$233 and HESS~J1800$-$240 (Fluxes $F$ and errors 
      $\Delta F$). 
      Results are derived using both {\em standard} and {\em hard} cuts. In cases where two flux points are extracted the weighted 
      average flux and error (with are 99\% correlated) is quoted. Statistical significances $S$ 
      (from Li \& Ma 1983, ApJ 272, ~317) from both
      {\em hard-cuts} and {\em standard cuts} 
      are given when available. A minimum significance $S\geq +2\sigma$ is required for a flux point otherwise 
      an upper limit is quoted.}
    %\centering
\par
    {\small 
    \begin{tabular}{cccc}\hline\hline
      Energy $E$ (TeV) & $^aF$ & $^a\Delta~F$ & $S$ ($\sigma$)\\ \hline
      \multicolumn{4}{c}{----- HESS~J1801$-$233 -----}\\
      0.41 & 74.23  & 20.57 & { +3.7,NA} \\ %std
      0.55 & 57.40  & 10.96 & { +6.2,+5.0} \\ %std&hard
      0.73 & 11.81  &  4.81 & {  NA,+2.6} \\ %hard
      0.97 &  6.51  &  2.65 & { +2.2,+3.0} \\ %std&hard
      1.30 &  3.11  &  1.41 & { +2.3,NA} \\ %std
      1.73 &  2.13  &  0.80 & { +2.7,+3.1} \\ %std&hard
      2.31 & $<$3.10 &       &            \\ %hard
      3.08 & $<$1.88 &       &            \\ %hard
      4.11 &  0.27  &  0.14 & { NA,+2.2} \\ %hard
      \multicolumn{4}{c}{----- HESS~J1800$-$240 A -----}\\
      0.31 & 138.59 & 40.20  & +3.5,NA \\
      0.41 & 87.60  & 19.41  & +4.7,NA\\
      0.55 & 26.29  & 9.57   & +3.6,+2.2\\
      0.73 & 26.07  & 4.97   & +5.8,+5.9\\
      0.97 & 6.82   & 2.43   & +3.3,+2.6\\
      1.30 & 2.79   & 1.23   & +2.5,+2.3 \\
      1.73 & 1.89   & 0.77   & +2.6,NA \\
      2.31 & $<$1.79\\
      3.08 & $<$1.70\\
      5.48 & 0.15   & 0.08   & NA,+2.2\\
      \multicolumn{4}{c}{----- HESS~J1800$-$240 B -----}\\
      0.31 & 117.92 & 40.09  & +3.0,NA\\
      0.41 & 87.83  & 19.82  & +4.6,NA\\
      0.55 & 38.74  & 10.24  & +4.3,+3.7 \\
      0.73 & 17.34  & 4.80   & +4.1,+3.6 \\
      0.97 & 6.27   & 2.49   & +2.7,NA\\
      1.30 & 2.91   & 1.29   & +2.6,+2.2\\
      1.73 & 2.04   & 0.72   & +2.9,+3.4\\
      2.31 & 1.10   & 0.44   & NA,+2.9\\
      3.08 & $<$2.25\\
      4.11 & 0.27   & 0.13   & NA,+2.4\\
      \multicolumn{4}{c}{----- HESS~J1800$-$240 C -----}\\
      0.55 & 19.87  & 7.62   & +2.8,NA \\
      0.73 & 8.95   & 3.70   & +2.6,NA \\
      1.30 & 2.68   & 1.06   & +2.6,+3.4\\
      1.73 & 1.09   & 0.52   & NA,+2.6\\
      2.31 & $<$2.09\\
      3.08 & 0.40   & 0.18   & NA,+2.9\\
      \multicolumn{4}{c}{----- HESS~J1800$-$240 -----}\\
      0.31 & 261.79 & 81.03  & +3.3,NA \\
      0.41 & 218.26 & 39.24  & +5.7,NA \\
      0.55 & 83.38  & 19.86  & +3.6,+4.9 \\
      0.73 & 49.45  & 9.45   & +5.2,+5.7\\
      0.97 & 18.24  & 5.00   & +3.5,+4.0\\
      1.30 & 7.53   & 2.56   & +2.5,+3.6\\
      1.73 & 3.88   & 1.30   & NA,+3.2\\
      2.31 & $<$6.28\\
      3.08 & 1.52   & 4.37   & NA,+3.8\\ \hline
      \multicolumn{4}{l}{\scriptsize a: $F$ and $\Delta~F$ in units $\times 10^{-13}$ ph cm$^{-2}$s$^{-1}$ TeV$^{-1}$}\\
      \multicolumn{4}{l}{\scriptsize b: Upper limits (99\% confidence) are derived using {\em hard cuts}}\\
    \end{tabular}
    }
    \label{tab:spectra}
  \end{table}