\begin{table}%t2
%\centering
\par
\caption{\label{tab2}Summary of the  \rxte\ observations.} 
\begin{tabular}{ccc} 
\hline 
\hline 
Name & Obs. Date & No. of Obs. \\ 
\hline 
Fairall 9 & 1996-11-03/2003-03-01 & 672 \\ 
PG~0804+761 & 1999-01-24/2004-12-23 & 259 \\ 
NGC~3227  & 1996-11-19/2005-12-04 & 1024 \\
NGC~3516  & 1997-03-16/2006-10-13 & 250 \\ 
NGC~3783  & 1996-01-31/2006-11-08 & 875 \\ 
NGC~4051  & 1996-04-23/2006-10-01 & 1268 \\ 
Mrk~766   & 1997-03-05/2006-11-07 & 221 \\
MCG~-6-30-15 & 1996-03-17/2006-12-24 & 1216 \\ 
NGC~5506  & 1996-03-17/2004-08-08 & 627 \\ 
NGC~5548  & 1996-05-05/2006-11-06 & 866 \\
Ark~564   & 1996-12-23/2003-03-04 & 517 \\ 
\hline                                     
\end{tabular} 
\end{table}