\begin{table}%t1
\par
 \caption{\label{tab1}The observational log of SZ
Psc.}
\small%\centering
\par
\begin{tabular}{lcccccccc}
\hline \hline
 \multicolumn{1}{c}{Date} & \multicolumn{1}{c}{HJD} &
\multicolumn{1}{c}{Phase}  & \multicolumn{1}{c}{Exp.
time} & \multicolumn{5}{c}{$S/N$} \\
\cline{5-9} &2~450~000+&&(s)&$\mbox{Na~{\sc i}}$&H$_{\alpha}$&
$\lambda$8498&$\lambda$8542& $\lambda$8662
\\\hline
2004.11.20&3330.1056& 0.171&2400&122&169&146&172&158\\
2004.11.21&3331.1074&0.424& 2400 &72&102&104&121&111 \\
2004.11.27&3337.1254&0.941  &2400  &92&122&105&119&109 \\
2006.09.01&3980.1606&0.092  &3600&60&89&114&125&119\\
2006.09.04&3983.1945&0.857   &4200&107&137&136&146&137\\
2006.09.05&3984.1343&0.094&3600&121&161&159&173&162\\
2006.09.06&3985.1275&0.345&3600&148&197&191&210&195\\
2006.10.28&4036.9631&0.416&3600&159&208&190&211&198\\
2006.10.28&4037.0292&0.432&3600&174&231&216&241&225\\
2006.10.29&4037.9423&0.663&3600&105&137&130&141&131\\
2006.10.29&4037.9973&0.677&3600&101&134&130&141&131\\
2006.10.29&4038.0403&0.687&3600&105&139&138&149&141\\
2006.11.28&4067.9936&0.241&3000&105&136&135&150&140\\
2006.11.28&4068.1349&0.276&2400&76&107&110&122&114\\
2006.11.30&4069.9877&0.743&3000&110&142&135&148&138\\
2006.11.30&4070.1315&0.780&3000&92&136&133&152&140\\
2006.12.08&4077.9560&0.753&3600&82&108&106&118&110\\
2006.12.08&4078.1179&0.794&3600&37&52&55&61&58\\
2006.12.10&4079.9561&0.257&3600&123&162&157&173&161\\
2006.12.10&4080.1039&0.294&3600&92&136&136&152&141\\
\hline
\end{tabular}
\end{table}