\begin{table}%t1
%\centering
\par
\caption{\label{tab:sdp_obs} HerMES SPIRE SDP observations.} 
\begin{tabular}{l c rrrllrrrrrrrrrr} 
\hline\hline\noalign{\smallskip}
Name  &  Size &     RA & Dec & Roll & Mode & Scan  & Repeats & $t_{\rm AOR}$ & $\langle N_{\rm samp}\rangle$
& $S_{50\%}^{250~\mu{\rm m}}$
& $S_{50\%}^{350~\mu{\rm m}}$
& $S_{50\%}^{500~\mu{\rm m}}$\\  
&  &    /$^\circ$ & /$^\circ$& /$^\circ$ & &  rate & & /hr & & /mJy& /mJy& /mJy \\ 
\hline
A2218    &  $9^\prime\times9^\prime$ &  248.98   &    66.22      &  217 & Lrg. Map & 30$^{\prime\prime}$/s  &100 & 9.2 & 1622 & 13.8 & 16.0 & 15.1 \\
\par
FLS      &  $155^\prime\times135^\prime$  &  258.97 &      59.39  &     185 & Parallel & 20$^{\prime\prime}$/s  & 1 &16.8 & 30 & 17.5 & 18.9 & 21.4\\
Lockman-North  &    $35^\prime\times35^\prime$   &    161.50 &      59.02    &   91 & Lrg. Map & 30$^{\prime\prime}$/s  & 7 & 3.9 & 117 & 13.7 & 16.5 & 16.0 \\
Lockman-SWIRE & $218^\prime \times 218^\prime$ & 162.00   &    58.11  &     92 & Lrg. Map & 60$^{\prime\prime}$/s  & 2 & 13.4 & 16 & 25.7 & 27.5 & 33.4 \\
GOODS-N     &   $30^\prime\times30^\prime $  &189.23   &    62.24 &      132 & Lrg. Map & 30$^{\prime\prime}$/s & 30 &13.5 & 501 & 12.0 & 13.7 & 12.8 \\
\hline                                   %inserts single line
\end{tabular}\vspace*{-2mm}
\tablefoot{PACS observations will be discussed in Aussel et~al. (in prep.). Size is approximate extent of region with typical coverage. Roll angle is measured East of North. Repeats is total number of pairs of scans in both $A$ and $B$~directions. $t_{\rm AOR}$ is total time in execution of the observations. $\langle N_{\rm samp}\rangle$ is the mean number of bolometer samples per pixel in the same typical-coverage region of the 250~$\mu$m map ($6^{\prime\prime} \times 6^{\prime\prime}$~pixels). $S_{50\%}^{250\mu{\rm m}}$ is the flux density at which 50\% of sources injected into the 250~$\mu$m map are faithfully recovered.}\vspace*{-3mm}
\end{table}