\begin{table}%t2
%\centering
\par
\caption{\label{tabrel}Mean of the relative distance between two quantities, measured along the jet line (see text).}
\vspace*{-1.5mm}
\small \begin{tabular}{lcccc}
\hline \hline
Quantities measured & Relative angular distance [$''$]\\
\hline \hline
On-pulse/Off-pulse, 20--40~keV & $2.28\pm0.15$\\
On-pulse/Off-pulse, 40--100~keV & $2.58\pm0.19$\\
On-pulse/Off-pulse, 100--200~keV & $3.65\pm0.98$\\
Total, 40--100/20--40~keV & $1.50\pm0.15$\\
Total, 100--200/20--40~keV & $2.14\pm0.49$\\
On-pulse, 40--100/20--40~keV & $1.25\pm0.19$\\
On-pulse, 100--200/20--40~keV & $2.84\pm0.63$\\
Off-pulse, 40--100/20--40~keV & $1.05\pm0.24$\\
Off-pulse, 100--200/20--40~keV & $1.51\pm0.84$\\
\hline
\end{tabular}
\vspace*{-1.5mm}
\end{table}