\begin{table}%t2
%\centering
\par
\caption{\label{tab2}Journal of the X-ray observations of WR~22.}
\begin{tabular}{lcccccccccc}
\hline\hline
No. & Orbit & Obs. ID & Date & HJD & Phase & Observ.\ & 
\multicolumn{3}{c}{Effective exposure} & Pos. Angle \\
&&& (yyyy-mm-dd) & (2450000+) && Duration & (s) & (s) &
(s) & (ddd:am:as.s) \\
&&&&&& (s) & MOS1 & MOS2 & pn & \\
\hline
I & 287 & 0109470101 & 2001-07-04 & 2095.15202 & 0.497 & 13239 &
2568 & 2571 & 0 & 307:19:30.7 \\
II & 291 & 0109470201 & 2001-07-11 & 2101.99880 & 0.582 & 13254 &
12392 & 12394 & 9066 & 315:32:04.5 \\
III & 301 & 0109470301 & 2001-07-31 & 2121.76809 & 0.828 & 13239 &
12316 & 12323 & 8986 & 332:01:21.2 \\
IV & 304 & 0109470501 & 2001-08-06 & 2127.74921 & 0.903 & 13335 &
10205 & 10514 & 6459 & 337:06:12.6 \\
V & 307 & 0109470601 & 2001-08-13 & 2135.04586 & 0.994 & 16039 &
7523 & 7520 & 4792 & 000:42:34.5 \\
VI & 375 & 0109470701 & 2001-12-27 & 2270.52715 & 0.680 & 13319 &
12156 & 12151 & 8611 & 120:52:46.3 \\
VII & 379 & 0109471001 & 2002-01-02 & 2277.36437 & 0.765 & 16033 &
14223 & 13940 & 8954 & 129:44:49.6 \\
\hline
\end{tabular} 
\end{table}