\begin{table}%t4
\caption{\label{t:dcop-par}Derived hyperfine parameters$^a$ (kHz) of \dcop\ in comparison to
  previous experimental and present quantum-chemically calculated values.}
%\centerline
{
\begin{tabular}{lcccc}
\hline \hline
Parameter   & \multicolumn{3}{c}{Value} \\
\hline
            & \multicolumn{1}{c}{This work} & \multicolumn{1}{c}{This work} & \multicolumn{1}{c}{\citet{caselli:dco+}} & \multicolumn{1}{c}{calculated} \\
\hline
$eQq$         & +150.00~(266) & +151.12~(288) & +147.8~(35)  & +156.0  \\
$C_I$         & $-$0.69$^b$   & $-$1.12~(43)  & $-$1.59~(78) & $-$0.69 \\
\hline
\end{tabular}}
\medskip
\par
$^a$ Numbers in parentheses are one standard deviation in units 
of the least significant figures.\\
$^b$ Kept fixed in the analysis.
\end{table}