\begin{table}%t2
%\centering
\par
\caption {\label{tab_groundbased}List of the complementary data. }
\begin{tabular}{cccc}
\hline\hline
\noalign{\smallskip}
Tracer & IRS1  & Beam & Telescope\\
 & (K kms$^{-1}$) & (\arcsec) &  \\
\hline  
 CO(2--1) &  (130)  & 130 & KOSMA\tablefootmark{a} \\
 $^{13}$CO(2--1) &  (36.1) & 130 & KOSMA\tablefootmark{a}  \\
 C$^{18}$O(2--1) &8.2  & 11.2 & IRAM\tablefootmark{b} \\
 CO(3--2) &  112.2  & 11.4 & JCMT\tablefootmark{c}  \\
 $^{13}$CO(3--2) & 75.5  & 80 & KOSMA\tablefootmark{a}  \\
 CO(4--3) & 115.5 &  57 & KOSMA\tablefootmark{d} \\
 CO(7--6) & 54.0  & 42 & KOSMA\tablefootmark{d}  \\
 CI($^3P_1 - ^3P_0$) & 11.4 & 55 & KOSMA\tablefootmark{d}  \\
CI($^3P_2-^3P_1$) & 20.5  & 42 & KOSMA\tablefootmark{d} \\
HCO$^+$(3--2) & 45.2  & 19.7 & JCMT\tablefootmark{e} \\
H$^{13}$CO$^+$(3--2) & (1.46) &  130 & KOSMA\tablefootmark{f}  \\
HCO$^+$(4--3) & 20.12  & 13.2 & JCMT\tablefootmark{e}   \\
H$^{13}$CO$^+$(4--3) & 1.69 &  80 & KOSMA\tablefootmark{f} \\
\hline
\end{tabular}
\tablefoot {All fluxes have been scaled to $80\arcsec$ beam size. Values in brackets were not included in the fit.\\
\tablefoottext{a}{D. Bremaud, Diplomarbeit, ETH,}
 \tablefoottext{b}{Kramer et~al. (1998)} 
 \tablefoottext{c}{M. Thompson, JCMT archive,}
  \tablefoottext{d}{S. Heyminck, priv. comm.,}
  \tablefoottext{e}{S. Bruderer, priv. comm.,}
  \tablefoottext{f}{E. Buenzli, Diplomarbeit ETH.}}
\vspace*{-4mm}
\end{table}