\begin{table}%t2%t3
\caption{\label{tabn2hp10}Hyperfine components and $A_{ul}$ Einstein spontaneous emission coefficients of the \juzb transition of N$_2$H$^+$.}
\small%\centerline
 {
 \begin{tabular}{cccccccc}
 \hline \hline
  $J'$ & $F_1'$ & \multicolumn{2}{c}{$F' \rightarrow J$} & $F_1$ & $F$ & \multicolumn{1}{c}{Frequency$^{{a}}$} & \multicolumn{1}{c}{$A_{ul}$} \cr
  && \multicolumn{2}{c}{}&&&  \multicolumn{1}{c}{(MHz)}& \multicolumn{1}{c}{(s$^{-1}$)}\cr
 \hline
&&&&&&& \\[-8pt]
1&1&0&0&1&1&93~171.6081&$3.628(-5)^{{b}}$\\
1&1&2&0&1&2&93~171.9049&$2.721(-5)$ \\
1&1&2&0&1&1&93~171.9049&$9.069(-6)$\\
1&1&1&0&1&0&93~172.0398&$1.209(-5)$\\
1&1&1&0&1&2&93~172.0398&$1.512(-5)$\\
1&1&1&0&1&1&93~172.0398&$9.069(-6)$\\
1&2&2&0&1&1&93~173.4669&$2.721(-5)$\\
1&2&2&0&1&2&93~173.4669&$9.070(-6)$\\
1&2&3&0&1&2&93~173.7637&$3.628(-5)$\\
1&2&1&0&1&2&93~173.9540&$1.008(-6)$\\
1&2&1&0&1&1&93~173.9540&$1.512(-5)$\\
1&2&1&0&1&0&93~173.9540&$2.016(-5)$\\
1&0&1&0&1&1&93~176.2522&$1.209(-5)$\\
1&0&1&0&1&2&93~176.2522&$2.016(-5)$\\
1&0&1&0&1&0&93~176.2522&$4.031(-6)$\\
\hline
\end{tabular}}
\medskip
$^{{a}}$ The frequency uncertainty is $\pm$4.0~kHz for all hyperfine components; 
$^{{b}}$~3.628($-$5) means 3.628~\pdix{-5}.
\end{table}