\begin{table}%t4
\caption{\label{mcmcresults}System parameters of WASP-11 derived from a simultaneous MCMC
  analysis of the available photometric and radial-velocity measurements.
  Quoted uncertainties define the $1\sigma$ confidence\protect intervals.}
\par
\small%\centering
\par
\begin{tabular}{lcc}
\hline\hline
Parameter & Value & Unit\\
\hline
Transit epoch (BJD), $T_0$ & $2~454~473.05588\pm 0.00020$ &\\
Orbital period, $P$ & $3.722465^{\rm +0.000006}_{-0.000008}$ & days \\
$(\rmsub{R}{p}/R_\star)^2$ & $0.0162^{\rm +0.0003}_{-0.0002}$ & \\
Transit duration & $2.556^{\rm +0.029}_{-0.007}$ & hours \\
Impact parameter, $b$ & $0.054^{\rm +0.168}_{-0.050}$ & ${R_*}$ \\
Reflex velocity, $K_1$ & $0.0821\pm 0.0074$ & km~s$^{-1}$ \\
Centre-of-mass velocity, $\gamma$ & $4.9077\pm 0.0015$ & km~s$^{-1}$ \\
Orbital eccentricity, $e$ & $\equiv$0.0 (adopted) & \\
Orbital inclination, $i$ & $89.8^{\rm +0.2}_{-0.8}$ & deg \\
Orbital separation, $a$ & $0.043\pm 0.002$ & AU \\
Planet radius, $\rmsub{R}{p}$ & $0.91^{\rm +0.06}_{-0.03}$ & ${R_{\rm J}}$ \\
Planet mass, $\rmsub{M}{p}$ & $0.53\pm 0.07$ & ${M_{\rm J}}$ \\
$\log \rmsub{g}{p}$ (cgs) & $3.16^{\rm +0.04}_{-0.05}$ & \\
Planet density, $\rmsub{\rho}{p}$ & $0.69^{\rm +0.07}_{-0.11}$ & $\rho_{\rm J}$ \\
Planet density, $\rmsub{\rho}{p}$ (cgs) & $0.92^{\rm +0.09}_{-0.15}$ & \\
Planet $\rmsub{T}{eql}$ ($A=0$; $f=1$) & $960\pm 70$ & K \\
\hline
\end{tabular} 
\end{table}