\begin{table}%t1
%\centering
\par
\caption{\label{tab:fits}Radiometric fits for~(136108) Haumea.}\vspace*{-1mm}
\par
\begin{tabular}{lcccc}
\hline \hline \noalign{\smallskip}
 Model & $\eta$ & $D$(km) & $p_v$ & Reduced $\chi^2$ \\
\hline
Fixed $\eta$ & 1.0 & $1230 \pm 18$ & $0.810 \pm 0.024$ & 1.14 \\ 
Fixed $\eta$ & 1.2 & $1276 \pm 20$ &  $0.752 \pm 0.024$ & 1.08 \\
Free $\eta$ & $1.38 \pm 0.71$   & $1324 \pm 167$ & $0.698  \pm 0.189$ & 1.06\\
\hline
\end{tabular}\vspace*{-4mm}
\end{table}