\begin{table}%t1
\caption{\label{t1}Log of {\it Herschel}  observations.}
\small
\vspace{-2mm}
%\centering
\par
\begin{tabular}{lllrcc}
\hline\hline\noalign{\smallskip}
Cluster & $z$      & Instrument  &  $\lambda$ \ \ \  & Obsid  & Flux \\
        &          &              & ($\mu$m)   &        & (mJy)  \\
        \hline
A1068   & 0.1386   & PACS    &  70 & 1~342~187~051 &  542 $\pm$ 6 \\
        &          & PACS    & 100 & 1~342~187~053 &  757 $\pm$ 6 \\
        &          & PACS    & 160 &           &  769 $\pm$ 4 \\
        &          & SPIRE   & 250 & 1~342~187~321 &  376 $\pm$ 6 \\
        &          & SPIRE   & 350 &           &  135 $\pm$ 6 \\
        &          & SPIRE   & 500 &           &   56 $\pm$ 8 \\
        &          & SCUBA   & 450 &           &   39 $\pm$ 13 \\
        &          & SCUBA   & 850 &           &  5.3 $\pm$ 1.1 \\
        &          & {\it Spitzer} &  24 &           &  74.5 $\pm$ 2.0 \\
        &          & {\it Spitzer} &  70 &           &  941 $\pm$ 30 \\
        &          & {\it IRAS}    &  60 &           &  577 $\pm$ 52 \\
        &          & {\it IRAS}    & 100 &           &  958 $\pm$ 144 \\
A2597   & 0.0821   & PACS    &  70 & 1~342~187~118 &   57 $\pm$ 5 \\
        &          & PACS    & 100 & 1~342~187~120 &   67 $\pm$ 7 \\
        &          & PACS    & 160 &           &   86 $\pm$ 4 \\
        &          & SPIRE   & 250 & 1~342~187~329 &   30 $\pm$ 6 \\
        &          & SPIRE   & 350 &           &   15 $\pm$ 6 \\
        &          & SPIRE   & 500 &           &   $<$16 \\
        &          & SCUBA   & 850 &           &  14.5 $\pm$ 2.3 \\
        &          & {\it Spitzer} &  24 &           &   2.1 $\pm$ 0.2 \\
        &          & {\it Spitzer} &  70 &           &   49 $\pm$ 6 \\
        &          & {\it Spitzer} & 160 &           &   52 $\pm$ 3 \\
Zw3146  & 0.2906   & PACS    &  70 & 1~342~187~043 &   94 $\pm$ 6 \\
        &          & PACS    & 100 & 1~342~187~045 &  150 $\pm$ 6 \\
        &          & PACS    & 160 &           &  139 $\pm$ 5 \\
        &          & SPIRE   & 250 & 1~342~187~326 &   81 $\pm$ 6 \\
        &          & SPIRE   & 350 &           &   30 $\pm$ 6 \\
        &          & SPIRE   & 500 &           &  $<$16 \\
        &          & SCUBA   & 450 &           &  $<$48 \\
        &          & SCUBA   & 850 &           &  6.6 $\pm$ 2.6 \\
        &          & {\it Spitzer} &  24 &           &   4.1 $\pm$ 0.4 \\
        &          & {\it Spitzer} &  70 &           &   68 $\pm$ 14 \\
        &          & {\it Spitzer} & 160 &           &  157 $\pm$ 35 \\
\hline
 \end{tabular}
\tablefoot{The {\it Spitzer}
data are from Quillen et~al. (\cite{Quillen2008}), Donahue et~al. (\cite{Donahue2007}, priv. comm.) and Egami et~al. (\cite{Egami2006}).
The SCUBA data are from Edge (priv. comm.), Zemcov et~al. (\cite{Zemcov2007}) and Chapman et~al. (\cite{Chapman2002}).} 
\vspace{-5mm}
\end{table}