\begin{table}%t2
\caption{Observation summary.\label{tab2}}
%\centerline
{\begin{tabular}{lcccc}
\hline
\hline
\multicolumn{1}{c}{Galaxy} &
\multicolumn{1}{c}{Start} &
\multicolumn{1}{c}{Obs.} &
\multicolumn{1}{c}{Exposure (s)} &
\multicolumn{1}{c}{Filter} \\
\multicolumn{1}{c}{name} &
\multicolumn{1}{c}{date (UT)} &
\multicolumn{1}{c}{orbit} &
\multicolumn{1}{c}{M1/M2/pn} &
\multicolumn{1}{c}{M1/M2/pn} \\
\multicolumn{1}{c}{(1)} &
\multicolumn{1}{c}{(2)} &
\multicolumn{1}{c}{(3)} &
\multicolumn{1}{c}{(4)} &
\multicolumn{1}{c}{(5)} \\
\hline
NGC 676  & 2002-07-14 & 475 & 17296/17578/15757 & thin/thin/thick \\  
NGC 1058 & 2002-02-01 & 393 & 11749/11798/6574  & thin/thin/med \\    
NGC 1068 & 2000-07-29 & 117 & 38351/34735/33521 & med/med/med\\     
NGC 2685 & 2001-10-15 & 339 & 6397/6687/4841    & thin/thin/thin \\  
NGC 3031 & 2001-04-22 & 251 & -/-/84400$^*$         & -/-/med$^*$\\  
NGC 3079 & 2001-04-13 & 246 & 21434/21776/10922 & med/med/thin\\  
NGC 3185 & 2001-05-07 & 258 & 11791/12117/8041  & thin/thin/thick \\ 
NGC 3227 & 2000-11-28 & 178 & 36514/36517/32579 & med/med/med\\   
NGC 3486 & 2001-05-09 & 259 & 4600/4663/5061    & thin/thin/med \\   
NGC 3941 & 2001-05-09 & 259 & 6233/6286/5302    & thin/thin/med \\  
%NGC 3982 &           &     & XMM public  & in September 2005 \\  
NGC 4051 & 2002-11-22 & 541 & 47814/48311/41889 & med/med/med  \\  
NGC 4138 & 2001-11-26 & 360 & 13575/13567/8856  & thin/thin/med \\  
NGC 4151 & 2000-12-21 & 190 & 29233/29253/21241 & med/med/med \\  
NGC 4168 & 2001-12-04 & 364 & 21886/21916/16009 & thin/thin/med \\  
NGC 4258 & 2000-12-08 & 183 & 20224/20246/13535 & med/med/med \\   
NGC 4388 & 2002-07-07 & 472 & 8768/8798/3866    & med/med/thin \\  
NGC 4395 & 2002-05-31 & 562 & 37096/30453/10873 & thin/thin/thin \\   
NGC 4472 & 2002-06-05 & 456 & 15181/15300/11043 & thin/thin/thin \\  
NGC 4477 & 2002-06-08 & 457 & 13329/13393/8457  & thin/thin/med \\  
NGC 4501 & 2001-12-04 & 364 & 12645/12637/2565  & thin/thin/med \\ 
NGC 4565 & 2001-07-01 & 286 & 14100/14113/8912  & thin/thin/med \\   
NGC 4579 & 2003-06-12 & 642 & 19568/20015/15396 & thin/thin/thin \\  
NGC 4639 & 2001-12-16 & 370 & 13672/13683/8863  & thin/thin/med \\  
NGC 4698 & 2001-12-16 & 370 & 14321/14427/8961  & thin/thin/med \\  
NGC 4725 & 2002-06-14 & 460 & 17062/17076/11941 & thin/thin/med \\  
NGC 5033 & 2001-07-02 & 286 & 7372/7232/869     & thin/thin/med \\  
NGC 5194 & 2003-01-15 & 568 & 20429/20465/17218 & thin/thin/thin \\   
NGC 5273 & 2002-06-14 & 460 & 15414/15474/9263  & thin/thin/med \\  
\hline
\end{tabular}}
\par
\smallskip
Notes: Col. (1): galaxy name; Col. (2): observation start date; Col. (3): observation 
orbital period; Col. (4): 
cleaned exposure of MOS1/MOS2/pn; Col. (5): filters used for MOS1/MOS2/pn;
"*'' means that MOS1 was not considered because it was operated in 
fast uncompressed mode, and MOS2 was not considered because it was 
operated in full-frame mode, so the data could thus be affected by pile-up.
\end{table}