\begin{table}%t2
\caption{\label{tab.clouds}Properties for the clouds identified by eye (\emph{Top}), and by the {\tt CPROPS} package (\emph{Bottom}).}
The clouds whose numbers are in bold face correspond to our final sample of clouds\\
%\centering
\begin{tabular}{lrrrrrrrrr}
\hline  \hline \noalign{\smallskip} 
Cloud & $\alpha_{\rm off}$\tablefootmark{a} & $\delta_{\rm off}$\tablefootmark{a} & $V_{\rm LSR}$ & $FWHM$ & ${R_{\rm e}}$ & ${I}_{\rm CO}$ & $ {M}_{{\rm \rm vir}} $\tablefootmark{b}& $ {M}_{{\rm H}_{2}}$\tablefootmark{c} & $\X$\tablefootmark{d}\\ 
& arsec & arcsec & $\kms$ & $\kms$ & pc & K$\kms$ & $M_{\sun}$ & $ {M}_{\sun}$ & $\frac{{\rm cm}^{-2}}{{\rm K}\kms}$\\[0.5em] 
\hline\noalign{\smallskip} 
{\bf GMC NGC6822~1}&$-48$& 330&$-43.2$&$1.5 \pm 0.9$&$22_{\rm -14}^{+9}$& $0.92_{\rm -0.10}^{+0.10}$ & $9.3_{\rm -8.7}^{+24}\times 10^3$ & $3.6_{\rm -0.8}^{+1.4}\times 10^4$ & $1.4_{\rm -0.2}^{+0.2} \times 10^{21}$\\
GMC NGC6822~2\tablefootmark{e} &  $-68.5$ & 299 & $-42.4$ & $5.1\pm 0.4$ & $29_{\rm -6}^{+5}$ & $2.47_{\rm -0.13}^{+0.14}$ & $1.9_{\rm -0.5}^{+0.5} \times 10^5$ & $3.1_{\rm -0.6}^{+0.3} \times 10^4$ & $3.0_{\rm -0.3}^{+0.3} \times 10^{20}$\\
GMC~NGC6822~3 & 80& 58& $-38.0$ & $2.4\pm 0.5$ & $38_{\rm -21}^{+15}$&    $0.36_{\rm -0.06}^{+0.07}$ & $ 4.1_{\rm -3}^{+4.2}\times 10^4$ & $9.5_{\rm -3.7}^{+3.5}\times 10^4$ & $4.3_{\rm -1.1}^{+1.6}\times 10^{21}$\\
GMC NGC6822~4 & 39 & 25 & $-39.9$ & $2.0\pm 0.6$& $18_{\rm -10}^{+6}$ & $1.34_{\rm -0.09}^{+0.10}$ & $1.2_{\rm -0.3}^{+0.1}\times 10^5$ & $1.2_{\rm -0.3}^{+0.1}\times 10^5$ & $ 3.1_{\rm -0.3}^{+0.4} \times 10^{21}$\\
{\bf GMC~NGC6822~5} &    35 &    24 & $-43.2$ & $ 3.4\pm 1.1$ & $19_{\rm -9}^{+8}$ & $1.52_{\rm -0.13}^{+0.11}$ & $ 4.1_{\rm -0.3}^{+0.6}\times 10^4$ & $1.2_{\rm -0.3}^{+0.2} \times 10^5$ & $2.5_{\rm -0.2}^{+0.5} \times 10^{21}$\\
GMC~NGC6822~6 &30 &16 & $-48.3$ & $1.6\pm 0.4$ & $12_{\textrm{\ldots}}^{+15}$ & $0.82_{\rm -0.07}^{+0.05}$ & $5.8_{\textrm{\ldots}}^{+14}\times 10^3$ & $4.7_{\rm -1.4}^{+1.4} \times 10^4$ & $2.4_{\rm -0.2}^{+0.3}\times 10^{21}$\\
GMC NGC6822~7& $-10$ &  364 & $-38.1$ & $3.2\pm 0.4$ & $27_{\rm -15}^{+11}$ & $0.48_{\rm -0.07}^{+0.06}$ & $5.2_{\rm -3.4}^{+4.1} \times 10^4$ & $4.9_{\rm -1.0}^{+0.2}\times 10^3$ & $2.8_{\rm -1.2}^{+1.6} \times 10^{20}$\\
{\bf GMC NGC6822~8} & 31 &   61 &$-44.8$ & $2.4\pm 1.4$ &  $14_{\textrm{ \ldots}}^{+28}$ & $0.58_{\rm -0.14}^{+0.13}$ & $ 1.5_{\textrm{\ldots}}^{+9.9}\times 10^4$ & $4.1_{\rm -2.5}^{+5.1}\times 10^4$ & $2.8_{\rm -0.5}^{+1.0} \times 10^{21}$\\
GMC NGC6822~9& 7& 54 & $-56.0$ & $1.4\pm 0.4$ & $\textrm{\ldots}_{\textrm{ \ldots}}^{+13} $ & $0.57_{\rm -0.10}^{+0.04}$ & $\textrm{\ldots}_{\textrm{ \ldots}}^{+7.9} \times 10^3$ & $7.6_{\rm -1.6}^{+4.2}\times 10^3$ & $8.2_{\rm -0.7}^{+1.7}\times 10^{20}$\\
GMC NGC6822~10& 0& 26 & $-60.1$ & $3.9\pm 1.0$ & $33_{\rm -17}^{+17}$ &     $0.59_{\rm -0.10}^{+0.07}$ & $9.4_{\rm -6.9}^{+13}\times 10^4$ & $  7.6_{\rm -2.9}^{+3.4}\times 10^4$ & $2.6_{\rm -0.7}^{+1.0} \times 10^{21}$\\
GMC NGC6822~11  & $-358$  &  208 &$-70.3$ & $2.0\pm 0.9$ & $28_{\textrm{ \ldots}}^{43}$ & $0.23_{\rm -0.07}^{+0.07}$ & $ 2.1_{\textrm{ \ldots}}^{+9.1}\times 10^4$ & $\textrm{ \ldots}_{\textrm{ \ldots}}^{\textrm{ \ldots}}$\tablefootmark{h} & $\textrm{ \ldots}_{\textrm{ \ldots}}^{\textrm{ \ldots}}$\tablefootmark{h}\\
%\hline  
{\bf GMC NGC6822~12}&$ 55$ & $ 287$&$-37.6$&$2.6\pm 0.5$&$23_{\textrm{ \ldots}}^{+28}$&$0.23_{\rm -0.02}^{+0.06}$&$2.9_{\textrm{ \ldots}}^{+6.3}\times 10^4$&$\textrm{ \ldots}_{\textrm{ \ldots}}^{+3.0}\times 10^3$&$\textrm{ \ldots}_{\textrm{ \ldots}}^{+1.7}\times 10^{20}$\\
{\bf GMC NGC6822~13}&$    49$&$   364$&$   -54.7$&$    1.7\pm 0.4$&$\textrm{ \ldots}_{\textrm{ \ldots}}^{+34}$&$0.26_{\rm -0.07}^{+0.05}$&$\textrm{ \ldots}_{\textrm{ \ldots}}^{+2.7}\times 10^4$&$\textrm{ \ldots}_{\textrm{ \ldots}}^{\textrm{ \ldots}}$\tablefootmark{h}&$\textrm{ \ldots}_{\textrm{ \ldots}}^{\textrm{ \ldots}}$\tablefootmark{h}\\
{\bf GMC NGC6822~14}&$  -331$&$   372$&$   -76.0$&$    3.0\pm 1.0$&$\textrm{ \ldots}_{\textrm{ \ldots}}^{+15}$&$0.32_{\rm -0.08}^{+0.08}$&$\textrm{ \ldots}_{\textrm{ \ldots}}^{+4.5}\times 10^4$&$\textrm{ \ldots}_{\textrm{ \ldots}}^{\textrm{ \ldots}}$\tablefootmark{h}&$\textrm{ \ldots}_{\textrm{ \ldots}}^{\textrm{ \ldots}}$\tablefootmark{h}\\
{\bf GMC NGC6822~15}&$  -386$&$    57$&$   -73.8$&$    3.6\pm 0.8 $&$24_{\rm -16}^{+21}$&$0.53_{\rm -0.12}^{+0.06}$&$5.8_{\rm -4.7}^{+11}\times 10^4$&$5.5_{\rm -1.4}^{+1.3}\times 10^4$&$2.9_{\rm -01.2}^{+1.7}\times 10^{21}$\\
\noalign{\smallskip} \hline 
\end{tabular}  

{
\par
\begin{tabular}{lrrrrrrrrrr} 
\hline  \hline  \noalign{\smallskip}
Cloud & $\alpha_{\rm off}$\tablefootmark{a}& $\delta_{\rm off}$ \tablefootmark{a} & $V_{\rm LSR}$ & $FWHM$ & $R_{\rm e}$ & $R_{\rm ex}$ & $I_{\rm CO}$ & $M_{\rm vir}$\tablefootmark{b} & $M_{H_2}$\tablefootmark{c} & $\X$ \tablefootmark{d}\\ 
& arsec & arcsec & $\kms$ & $\kms$ & pc & pc & K$\kms$ & $M_{\sun}$ & $M_{\sun}$ & $\frac{{\rm cm}^{-2}}{{\rm K}\kms}$\\[0.5em] 
\hline \noalign{\smallskip} 
GMC NGC6822~1& $-50$ & $331$ & $-40.2$ & $5.5 \pm3.5$\tablefootmark{g}&$     15 \pm 14$ & $38$ & $0.9 \pm 0.3$ & $8.5 \pm 9.2 \times 10^4$\tablefootmark{g} &$5.1\times 10^4$ & $9.9 \times 10^{20}$\\
{\bf GMC NGC6822~2}&$    -71$&$    301$&$   -41.3$&$     6.2\pm     1.4$&$     32\pm      4$&$     86$&$     1.2\pm     0.1$&$       2.3\pm       0.5\times 10^4$&$       9.8 \times 10^4$&$       4.2 \times 10^{20}$\\
{\bf GMC NGC6822~3}&$ 83$&$     59$&$   -37.0$&$     2.2\pm     1.9$&$     32\pm     13$&$     54$&$     0.2\pm     0.1$&$       2.8\pm       2.6\times 10^4$&$       1.1\times 10^5$&$       6.4\times 10^{21}$\\
{\bf GMC NGC6822~4}&$     38$&$     25$&$   -39.2$&$     2.1\pm     3.2$&$     15\pm     21$&$     12$&$     1.0\pm     1.3$&$       1.3\pm       2.3\times 10^4$&$       1.2\times 10^5$&$       4.0\times 10^{21}$\\
GMC NGC6822~5&$     35$&$     24$&$   -42.6$&$     3.9\pm     6.2$&$     10\pm     22$&$     \ldots^{{\rm ~i}}$&$     1.4\pm     2.2$&$       2.9\pm       7.6\times 10^4$&$       8.8\times 10^4$&$       2.8\times 10^{21}$\\
{\bf GMC NGC6822~6}&$     30$&$     17$&$   -47.1$&$     3.2\pm     3.0$&$     15\pm     29$&$     33$&$     0.7\pm     0.2$&$       2.8\pm       6.3\times 10^4$&$       9.9\times 10^4$&$       3.0\times 10^{21}$\\
{\bf GMC NGC6822~7}&$    -17$&$    359$&$   -38.1$&$     2.1\pm     1.8$&$     31\pm     17$&$     47$&$     0.3\pm     0.2$&$       2.5\pm       2.4\times 10^4$&$\ldots$\tablefootmark{h}&$\ldots$\tablefootmark{h}\\
GMC NGC6822~8&$     33$&$     62$&$   -43.2$&$     4.6\pm     6.0$&$     19\pm     20$&$     37$&$     0.3\pm     0.2$&$       7.5\pm       14\times 10^4$&$       9.5\times 10^4$&$       4.7\times 10^{21}$\\
{\bf GMC NGC6822~9}&$      7$&$     54$&$   -55.3$&$     2.1\pm     1.8$&$     10\pm     31$&$     31$&$     0.3\pm     0.1$&$       0.8\pm       2.3\times 10^4$&$       3.6\times 10^4$&$       2.6\times 10^{21}$\\
{\bf GMC NGC6822~10}&$      0$&$     27$&$   -59.4$&$     4.6\pm     2.7$&$     25\pm      7$&$     55$&$     0.5\pm     0.1$&$       9.6\pm       6.1\times 10^4$&$       1.4\times 10^5$&$       3.1\times 10^{21}$\\
{\bf GMC NGC6822~11}&$   -365$&$    210$&$   -69.4$&$     1.7\pm     1.8$&$     11\pm     27$&$     16$&$     0.2 \pm     0.2$&$ 0.6\pm 1.7 \times 10^4$&$\ldots$\tablefootmark{h}&$\ldots$\tablefootmark{h}\\
\hline 
\end{tabular}}
\tablefoot{\tablefoottext{a}{Offsets with respect to the reference position $(\alpha_{\rm o},\delta_{\rm o})=(19^{\rm h}44^{\rm m}57\ \fs8,-14\degr48\arcmin11\arcsec)$.} \tablefoottext{b}{Virial mass following \citet{Solomon:1987} using ${R_{\rm e}}$ and $\Delta V$ (see Sect.~\ref{sec.clouds}).} 
\tablefoottext{c}{${\rm H}_{2}$ mass estimate from ${\rm 8~\mu m}$ emission (see Sect.~\ref{sec.mass8mu}).} 
\tablefoottext{d}{X conversion factor for individual clouds using $\NHmol$ estimated from ${\rm 8~\mu m}$ emission (see Sect.~\ref{sec.mass8mu}).}
\tablefoottext{e}{Hubble~V \citep{Hubble:1925}.} 
\tablefoottext{f}{See Sect.~\ref{sec.clouds}.}
\tablefoottext{g}{The {\tt CPROPS} computed~$FWHM$ is clearly overestimated compared to the one computed by hand by a factor of about~3. ${M_{\rm vir}}$ being proportional to $FWHM^2$, this explains the order of magnitude difference between the computed virial masses for this cloud.}
\tablefoottext{h}{The computed ${\rm H_{2}}$ mass for these clouds was found to be negative.}  \tablefoottext{i}{The deconvolved size was not defined.}}
\end{table}