\begin{table}%T4
\caption{\label{tab:swcma_aps}
Apsidal motion parameters for SW~CMa derived from the\protect 
photoelectric times of minima. 
}
\small%\centering
\par
\begin{tabular}{ll} \hline
\hline 
Parameter    & Value and rms error                    \\
 \hline
$i$ (\degr)                & 88.6 (assumed)             \\           
$e$                        & 0.316 (assumed)            \\
$T_0$                      & $2~446~828.7512 \pm 0.0006 $  \\
$P_{\rm anomalistic}$ (d)      & $10.091997 \pm 0.000005$     \\ 
$P_{\rm sidereal}$    (d)      &  10.091978                  \\ 
$\omega_0$ (\degr)         & $163.52 \pm 0.10$           \\
$\omega_1$ (\degr/cycle) & $0.00067 \pm 0.00021$       \\
$U$ (yr)                   & $14~900 \pm 3600 $           \\
\hline
\end{tabular}
\end{table}