\begin{table}%t2 
\caption {\label{tab:ulwobble}Derived upper limits on flux for the November and the
December 2007 data. }
%\centerline
 {\begin{tabular}{cccccc}
\hline\hline
$\langle E\rangle$ & \multicolumn{5}{c}{\textbf{U.L. Nov. 27, 30 and Dec. 1 2007}}\\
\textbf{[GeV]} & $N_{\rm ON}$ &$N_{\rm OFF}$& Sign. ($\sigma$) & C.U.  & 
[erg~cm$^{-2}$~s$^{-1}$]\\
\hline
 113 & 39~900 & 39~920 & --0.07 & 0.3 & $4.6\times 10^{-11}$\\
 235 & 385& 367& 0.66 & 0.09 & $0.9 \times 10^{-11}$\\
\hline
\end{tabular}}
\par
\smallskip
The columns represent respectively: the average
true energy, the number of ON source events, number of background
(OFF) events, the significance, the flux upper limit in Crab~Units
(C.U.) and in absolute flux units of [erg~cm$^{-2}$~s$^{-1}$].
\end{table}