\begin{table}%t4
%\centering
\par
\caption{Results for 46P/Wirtanen from 555 obs. 1991--2003.\label{tab4}}
{
\begin{tabular}{ccc}\hline\hline
Epoch & 2003 Dec. 27.0 TT \\
 & Model 1 & Model 2 \\\hline
$T$ & 2002 Aug. 26.67881 & Aug. 26.67877\\
$\omega$ & 356.37739 & 356.37734\\
$\Omega$ & 82.16756 & 82.16757\\
$I$ & 11.73852 & 11.73853\\
$q$ & 1.0586219 & 1.0586216\\
$e$ & 0.6577531 & 0.6577532\\
$A_1$ & +0.3427$\pm 0.0106$ & +0.3487$\pm 0.0096$\\
$A_2$ & --0.1404$\pm 0.0001$ & --0.1404$\pm 0.0001$\\
$A_3$ & +0.1000$\pm 0.0072$ & +0.1027$\pm 0.0072$\\
rms & $1''$37 & $1''$37\\\hline
\end{tabular} }
\end{table}