\begin{table}%t1
%\centering
\par
\caption{Values of the fitting parameters in Eq.~(\ref{eq:
approxd}) for some representative sets of $(\Omega_{\rm M}, \gamma,
z_Q)$. The first row refers to the best fit to SNeIa fit, while
the remaining rows refer to models providing a good fit to the
CMBR anisotropy spectrum.}
\begin{tabular}{ c c c c c }
\hline\hline
$\Omega_{\rm M}, \gamma, z_Q$ & $\alpha$ & $d_1$ & $d_2$ & $d_3$ \\
\hline  $0.28, 3.7, 0.1$ & $0.1355$ & $-0.5725$ & $-0.0471$
& $-0.0124$ \\ $0.24, 5.0, 4.0$ & $0.3371$ & $-0.6510$ & $-0.0878$
& $-0.0367$ \\ $0.24, 5.5, 5.0$ & $0.3474$ & $-0.6275$ & $-0.0814$
& $-0.0377$ \\ $0.24, 6.0, 7.0$ &
$0.3513$ & $-0.5983$ & $-0.0731$ & $-0.0372$ \\
\hline
\end{tabular} 
\end{table}