\begin{table}%t1
\caption{This table presents the sample of
cooling flow clusters of galaxies observed with the IRAM 30~m
telescope. Central frequencies of the CO(1--0) and CO(2--1) lines
observed, as the exposure time are indicated for each galaxy. Sources
observed in the second run (August) are with indicated by a star. The
others were observed during the first run (July). Several sources were
not observed in CO(2--1) since the redshifted $J=2$--1 transition lines
were out of the 30~m telescope receiver's
band.} 
\label{prop1}
%\centering
\par
\begin{tabular}{lccccccc}
\hline
\hline 
\multicolumn{1}{l}{Source }& \multicolumn{1}{c}{Redshift} & \multicolumn{1}{c}{RA (2000)} & \multicolumn{1}{c}{Decl (2000)} & \multicolumn{1}{c}{Central Freq.} &\multicolumn{1}{c}{Exposure}& \multicolumn{1}{c}{Central Freq.  } &\multicolumn{1}{c}{Exposure} \\
\multicolumn{1}{l}{}& \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{in CO(1--0)} &\multicolumn{1}{c}{time (min)}& \multicolumn{1}{c}{in CO(2--1)} &\multicolumn{1}{c}{time (min)} \\ 
\hline
A85$^{*}$ & 0.05567 & 00 41 50.4 & --09 18 11 & 109.19 GHz & 152 & -- &-- \\ 
Z235 & 0.08300 & 00 43 52.1 & +24 24 21 & 106.43 GHz & 128 & 212.87 GHz & 128 \\ 
A262$^{*}$ & 0.01620 & 01 52 46.5 & +36 09 07 & 113.43 GHz & 160 & -- &-- \\
A291$^{*}$ & 0.19590 & 02 01 43.1 & --02 11 48 & 96.38 GHz & 304 & -- & -- \\ 
A496 & 0.03281 & 04 33 37.8 & --13 15 43 & 111.60 GHz & 248 & 223.21 GHz & 256 \\ 
RX~J0439+05 & 0.20800 & 04 39 02.2 & +05 20 44 & 95.42 GHz & 300 & -- & -- \\ 
PKS~0745-191 & 0.10280 & 07 47 31.3 & --19 17 40 & 104.52 GHz & 304 & 209.04 GHz & 376 \\ 
A644$^{*}$ & 0.07040 & 08 17 25.5 & --07 30 44 & 107.69 GHz & 144 & 215.37 GHz & 88 \\ 
RX~J0821+07 & 0.11000 & 08 21 02.4 & +07 51 47 & 103.84 GHz & 96 & 207.69 GHz & 96 \\ 
A646 & 0.12680 & 08 22 09.6 & +47 05 53 & 102.30 GHz & 304 & 204.59 GHz & 312 \\ 
A780 & 0.05384 & 09 18 05.7 & --12 05 44 & 109.38 GHz & 268 & 218.76 GHz & 352 \\ 
A1068$^{*}$ & 0.13860 & 10 40 44.5 & +39 57 11.1 & 101.23 GHz & 180 & -- &-- \\ 
A978 & 0.05425 & 10 20 26.5 & --06 31 36 & 109.34 GHz & 96 & 218.67 GHz & 96 \\ 
A1668 & 0.06368 & 13 03 46.6 & +19 16 18 & 108.37 GHz & 80 & 216.73 GHz & 80 \\ 
%A1704$^{*}$ & 0.21993 & 13 14 24.6 & +64 34 31 & 94.49 GHz & 320 & -- &-- \\ 
A1795 & 0.06326 & 13 48 52.4 & +26 35 34 & 108.41 GHz & 68 & 216.82 GHz & 129 \\ 
A2029 & 0.07795 & 15 10 56.1 & +05 44 41 & 106.93 GHz & 112 & 213.86 GHz & 168 \\ 
MKW3s & 0.04531 & 15 21 51.9 & +07 42 32 & 110.27 GHz & 144 & 220.54 GHz & 144 \\ 
A2146 & 0.23370 & 15 56 13.8 & +66 20 55 & 93.43 GHz & 272 &-- & -- \\ 
A2142$^{*}$ & 0.09037 & 15 58 20.0 & +27 14 02 & 105.71 GHz & 128 &-- &-- \\ 
A2147 & 0.03532 & 16 02 17.0 & +15 58 28 & 111.33 GHz & 152 & 222.67 GHz & 152 \\ 
A2151 & 0.03533 & 16 04 35.8 & +17 43 18 & 111.33 GHz & 152 & 222.67 GHz & 152 \\ 
A2199 & 0.03035 & 16 28 38.5 & +39 33 06 & 111.87 GHz & 128 & 223.74 GHz & 120 \\ 
%A2256$^{*}$ & 0.05940 & 17 04 27.1 & +78 38 25 & 108.80 GHz & 144 &- &- \\ 
Z8193$^{*}$ & 0.18290 & 17 17 19.2 & +42 27 00 & 97.44 GHz & 304 &-- &-- \\ 
A2261$^{*}$ & 0.2240 & 17 22 27.1 & +32 07 58 & 94.17 GHz & 256 &-- &-- \\ 
A2319$^{*}$ & 0.05459 & 19 21 10.0 & +43 56 44 & 109.30 GHz & 136 & 218.60 GHz & 88 \\ 
CygA & 0.05607 & 19 59 28.3 & +40 44 02 & 109.15 GHz & 228 & 218.29 GHz & 232 \\ 
A2462 & 0.07437 & 22 39 11.4 & --17 20 28 & 107.29 GHz & 144 & 214.58 GHz & 144 \\ 
A2597 & 0.08520 & 23 25 19.8 & --12 07 26 & 106.22 GHz & 144 & 212.43 GHz & 144 \\ 
A2626 & 0.05490 & 23 26 30.6 & +21 08 50 & 109.27 GHz & 136 & 218.54 GHz & 140 \\ 
A2634 & 0.03022 & 23 38 29.5 & +27 01 56 & 111.89 GHz & 144 & 223.77 GHz & 144 \\ 
A2657 & 0.04023 & 23 44 57.4 & +09 11 34 & 110.81 GHz & 208 & 221.62 GHz & 208 \\ 
A2665$^{*}$ & 0.05610 & 23 50 50.6 & +06 09 00 & 109.14 GHz & 192 & 218.29 GHz & 192 \\
\hline 
\end{tabular}
\end{table}