\begin{table}%t4
\caption{Geometry of the arc structures in SW3 component B$^a$.}\label{arc_geometry}
\small%\centerline
 {
\begin{tabular}{cccccl}
\hline \hline 
Date        & Orient & Curv   & VerDist & MinExt & Comment \\
(UT)        &  (deg) &        & (km)    & (km)   & \\
\hline 
03/05/2006  & 125/325     & TW          & 1000   & 4000/5000    &  \\
08/05/2006  & 122/nd      & CC/nd       & 1700   & $>$12~500/nd  & single sided arc \\
            & 142/322     & CC/C        & 400    & $>$17~500/$>$13~500 & brighter western arc \\
            & 177/272     & CC/C        & 1300   & 3000/2700    & \\
09/05/2006  & 142/322     & CC/C        & 1000$-$3000 & $>$13~000/$>$18~000 &
diffuse area inbetween \\
            &             &             &        &                   & arc to 8500~km distance \\
\hline
\end{tabular}}
\medskip
$^a$ Notes: The table lists the observing date (Date), 
the orientation angle (Orient) measured North over East, the curvature (Curv), 
the distance of the arclet vertex 
from the nucleus (VerDist) and the minimum extension (MinExt) plus some
comments. Abbreviations: nd~= not detected, S~= straight, C~= clockwise, 
CC~= counterclockwise, TW~= tailward. The various structures are identified in Fig.~\ref{B_laplace}.
\end{table}