\begin{table}%t1
\caption {\label{tab:res}Observational results for SMMJ163555, SMMJ163541, SMMJ163556.}
%\centerline
 {\begin{tabular}{ccccccccc}
\hline
\hline
 & & & RA & Dec & $\sigma_{\rm pos}$$^\diamond$ & $I_{\rm CO}$ & Flux$^\dagger$ & Line width \\
Source & Transition & $z_{\rm CO}$ & (J2000.0) & (J2000.0) & [$''$] & [Jy km~s$^{-1}$] & [mJy] & [km~s$^{-1}$] \\ 
\hline
SMMJ163555 & CO(2--1) & $1.0313\pm0.0012$ & 16 35 55.05& +66 11 50.7 &
$\sim$$0.5$ & $1.2\pm0.2$ & $2.6\pm0.7$ & $410\pm120$ \\
 & 3~mm &     &     &    &  &     & $<$1.4 &     \\
SMMJ163541 & CO(3--2) & $3.1824\pm0.0017$ & 16 35 40.86 & +66 11 44.4 & $\sim$0.4 & $1.0\pm0.1$ & $3.3\pm0.4$ & $284\pm50$ \\
           & CO(3--2) & $3.1883\pm0.0006$ & 16 35 41.33 & +66 11 46.4 & $\sim$0.8 & $0.3\pm0.1$ & $2.6\pm0.7$ & $106\pm44$ \\
 & 3~mm &     &     &   &   &     & $<$0.6 &     \\
SMMJ163556 & CO(4--3) & $4.035{-}4.082$$^{\ddagger}$ &            &     &              &  $<$$0.45^\star$ & &  \\
 & 3~mm &     &     &  &    &     & $<$$0.44$ &     \\
\hline
\end{tabular}}
\par
\smallskip
$^\dagger$ For line emission this refers to the peak flux, for continuum this
refers to the flux density;  
$^\ddagger$ the corresponding redshift ranged in which the CO(4--3) transition
would have been detectable;  
$^\star$ $3\sigma$ upper limit estimated assuming a line width of 400~km~s$^{-1}$.
$^\diamond$ $\sigma_{\rm pos}$ refers to the uncertainty on the position. 
\end{table}