\begin{table}%t3
  %%\centering

\par
  \caption{Overview of the velocity fit coefficients for the Rayleigh distributions (shown in Figs.~\ref{figvel_smooth} and~\ref{figveldrift}) for both data sets.}
  \begin{tabular}{l l l l}
    \hline\hline
    Spat. sampling & Temp. cadence  & Fit parameter & Mean value \\
    ~[${\rm arcsec/pixel}$]  &$\Delta t$ [s] &$\sigma$ [${\rm km~s^{-1}}$]& $\mu$ [${\rm km~s^{-1}}$] \\
    \hline
    0.108 & 32 & 1.12&  $1.59\pm 1.20$   \\
     & 64 & 0.95&  $1.32\pm 0.91$   \\
     & 96 & 0.88&  $1.17\pm 0.76$  \\
     & 128 & 0.81&  $1.08\pm 0.67$   \\
    & 160 & 0.78&  $1.03\pm 0.61$   \\
     & 192 & 0.72&  $0.94\pm 0.56$   \\
    \hline
    0.054 & 11 & 1.36&  $1.77\pm 1.22$   \\
     & 22 & 1.14&  $1.49\pm 0.90$   \\
     & 33 & 1.04&  $1.35\pm 0.84$  \\
     & 44 & 1.01&  $1.29\pm 0.77$   \\
     & 55 & 0.98&  $1.25\pm 0.73$   \\
     & 66 & 0.94&  $1.21\pm 0.70$   \\
    \hline
  \end{tabular}
  \label{velocity108}
\end{table}