\begin{table}%t6  
\caption{\label{tab6}Comparison of effective collision strengths ($\Upsilon$) for some transitions of Fe~X. ($a \pm b \equiv a \times 10^{{\pm}b}$.)}
%\centering
\par
\begin{tabular}{lllllllllll}                                                                           \hline                                                                                               \hline                                                                                               \multicolumn{2}{c}{Transition} & \multicolumn{3}{c}{Tayal (2001)} & \multicolumn{3}{c}{Pelan \& Berrington (2001)} & \multicolumn{3}{c}{Present results} \\
\hline
& & \multicolumn{3}{c}{Temperature (log $T_{\rm e}$, K)}  & \multicolumn{3}{c}{Temperature (log $T_{\rm e}$, K)}  & \multicolumn{3}{c}{Temperature (log $T_{\rm e}$, K)}\\ \cline{3-11}
$i$ & $j$&  5.40& 6.00    &  6.60  &  5.40 & 6.00   & 6.60  &  5.40  &  6.00   &  6.60 \\ 
\hline 						1 & 2	 & 	2.232 &       1.130 &	    0.494 &    2.970$-$0 &   1.790$-$0 &	   7.300$-$1 & 3.118$-$0	   & 1.813$-$0  &  7.392$-$1  \\
1 & 3	 & 	0.753 &       0.647 &	    0.667 &    7.939$-$1 &   5.133$-$1 &	   4.008$-$1 & 1.202$-$0	   & 8.902-1  &  7.444-1  \\
1 & 4	 & 	0.368 &       0.162 &	    0.067 &    1.742$-$1 &   1.045$-$1 &	   5.222$-$2 & 5.863$-$1	   & 2.293$-$1  &  8.620$-$2  \\
1 & 5	 & 	0.475 &       0.218 &	    0.093 &    2.389$-$1 &   1.468$-$1 &	   7.492$-$2 & 9.143$-$1	   & 3.424$-$1  &  1.263$-$1  \\
1 & 6	 & 	0.234 &       0.100 &	    0.040 &    9.933$-$2 &   5.968$-$2 &	   2.979$-$2 & 2.943$-$1	   & 1.148$-$1  &  4.448$-$2  \\
1 & 7	 & 	0.103 &       0.044 &	    0.017 &    4.176$-$2 &   2.500$-$2 &	   1.215$-$2 & 1.967$-$1	   & 7.060$-$2  &  2.430$-$2  \\
1 & 9	 & 	0.143 &       0.064 &	    0.026 &    1.702$-$1 &   1.036$-$1 &	   5.142$-$2 & 4.370$-$1	   & 2.224$-$1  &  8.621$-$2  \\
1 & 8	 & 	0.273 &       0.129 &	    0.053 &    7.151$-$2 &   4.285$-$2 &	   2.321$-$2 & 1.505$-$1	   & 7.076$-$2  &  2.873$-$2  \\
1 & 10   & 	0.219 &       0.098 &	    0.039 &    1.281$-$1 &   7.439$-$2 &	   3.679$-$2 & 2.176$-$1	   & 1.071$-$1  &  4.622$-$2  \\                                                                                       
1 & 11   & 	0.156 &       0.071 &	    0.031 &    8.460$-$2 &   4.880$-$2 &	   2.392$-$2 & 1.343$-$1	   & 6.965$-$2  &  3.282$-$2  \\
1 & 12   & 	0.118 &       0.055 &	    0.025 &    1.132$-$1 &   7.286$-$2 &	   4.108$-$2 & 2.316$-$1	   & 1.242$-$1  &  5.329$-$2  \\
1 & 13   & 	0.253 &       0.124 &	    0.066 &    6.973$-$2 &   4.195$-$2 &	   1.989$-$2 & 3.655$-$1	   & 1.997$-$1  &  8.948$-$2  \\
1 & 14   & 	0.213 &       0.117 &	    0.075 &    7.923$-$2 &   5.739$-$2 &	   2.952$-$2 & 3.221$-$1	   & 1.802$-$1  &  9.809$-$2  \\
1 & 15   & 	0.070 &       0.036 &	    0.023 &    9.438$-$2 &   5.733$-$2 &	   3.106$-$2 & 6.069$-$2	   & 3.666$-$2  &  2.312$-$2  \\
1 & 16   & 	0.131 &       0.058 &	    0.024 &    5.434$-$2 &   3.293$-$2 &	   2.400$-$2 & 1.338$-$1	   & 6.642$-$2  &  2.565$-$2  \\
1 & 17   & 	0.230 &       0.117 &	    0.062 &    1.343$-$1 &   9.302$-$2 &	   6.585$-$2 & 6.413$-$1	   & 3.457$-$1  &  1.418$-$1  \\
1 & 18   & 	0.387 &       0.167 &	    0.081 &    1.351$-$1 &   9.067$-$2 &	   6.485$-$2 & 6.437$-$1	   & 2.965$-$1  &  1.316$-$1  \\
1 & 19   & 	0.267 &       0.135 &	    0.118 &    1.619$-$1 &   9.527$-$2 &	   6.761$-$2 & 3.754$-$1	   & 1.914$-$1  &  7.929$-$2  \\
1 & 20	 & 	      & 	    &		  &    1.627$-$1 &   1.100$-$1 &	   8.230$-$2 & 5.610$-$1	   & 2.523$-$1  &  1.218$-$1  \\
1 & 21 	 & 	      & 	    &		  &    1.177$-$1 &   6.502$-$2 &	   2.889$-$2 & 2.794$-$1	   & 1.210$-$1  &  4.433$-$2  \\
1 & 22   & 	0.197 &       0.088 &	    0.044 &    1.101$-$1 &   6.217$-$2 &	   3.300$-$2 & 3.002$-$1	   & 1.321$-$1  &  5.597$-$2  \\
1 & 23   & 	0.236 &       0.102 &	    0.057 &    1.045$-$1 &   6.480$-$2 &	   4.470$-$2 & 1.804$-$1	   & 9.901$-$2  &  6.153$-$2  \\
1 & 24   & 	0.288 &       0.126 &	    0.073 &    1.288$-$1 &   8.221$-$2 &	   6.221$-$2 & 2.194$-$1	   & 1.040$-$1  &  6.415$-$2  \\
1 & 25   & 	0.152 &       0.080 &	    0.063 &    5.803$-$2 &   4.534$-$2 &	   3.937$-$2 & 2.045$-$1	   & 9.789$-$2  &  6.087$-$2  \\
1 & 26   & 	0.217 &       0.092 &	    0.054 &    5.941$-$2 &   4.350$-$2 &	   4.242$-$2 & 1.326$-$1	   & 6.780$-$2  &  4.115$-$2  \\
1 & 27   & 	1.709 &       2.003 &	    2.763 &    1.908$-$0 &   1.933$-$0 &	   1.950$-$0 & 1.887$-$0	   & 2.080$-$0  &  2.649$-$0  \\
1 & 28   & 	3.360 &       3.847 &	    5.286 &    3.856$-$0 &   3.934$-$0 &	   4.018$-$0 & 4.081$-$0	   & 4.224$-$0  &  5.337$-$0  \\
1 & 29   & 	0.494 &       0.511 &	    0.681 &    4.783$-$1 &   4.924$-$1 &	   5.608$-$1 & 5.618$-$1	   & 5.518$-$1  &  6.788$-$1  \\
1 & 30   & 	5.628 &       6.650 &	    9.217 &    6.805$-$0 &   7.032$-$0 &	   7.171$-$0 & 6.476$-$0	   & 7.259$-$0  &  9.355$-$0  \\
1 & 31   & 	0.322 &       0.292 &	    0.363 &    2.161$-$1 &   2.274$-$1 &	   2.690$-$1 & 1.909$-$1	   & 1.987$-$1  &  2.406$-$1  \\
2 & 3	 & 	0.380 &       0.340 &	    0.356 &    3.508$-$1 &   2.481$-$1 &	   2.039$-$1 & 5.769$-$1	   & 4.661$-$1  &  3.953$-$1  \\
2 & 4	 & 	0.164 &       0.066 &	    0.025 &    5.955$-$2 &   3.416$-$2 &	   1.662$-$2 & 4.003$-$1	   & 1.305$-$1  &  4.159$-$2  \\
2 & 5	 & 	0.160 &       0.062 &	    0.022 &    5.393$-$2 &   2.842$-$2 &	   1.270$-$2 & 1.808$-$1	   & 6.708$-$2  &  2.292$-$2  \\
2 & 6	 & 	0.125 &       0.054 &	    0.022 &    5.324$-$2 &   3.237$-$2 &	   1.627$-$2 & 1.319$-$1	   & 5.434$-$2  &  2.181$-$2  \\
2 & 7	 & 	0.067 &       0.031 &	    0.013 &    3.206$-$2 &   2.058$-$2 &	   1.077$-$2 & 8.254$-$2	   & 3.457$-$2  &  1.445$-$2  \\
2 & 8	 & 	0.087 &       0.039 &	    0.016 &    2.919$-$2 &   1.508$-$2 &	   6.590$-$3 & 4.530$-$2	   & 1.960$-$2  &  7.596$-$3  \\
2 & 9	 & 	0.074 &       0.036 &	    0.021 &    3.117$-$2 &   2.159$-$2 &	   1.185$-$2 & 6.843$-$2	   & 3.856$-$2  &  2.489$-$2  \\
2 & 10   & 	0.102 &       0.048 &	    0.020 &    4.983$-$2 &   2.856$-$2 &	   1.362$-$2 & 7.923$-$2	   & 3.996$-$2  &  1.648$-$2  \\
2 & 11   & 	0.084 &       0.041 &	    0.017 &    5.393$-$2 &   3.136$-$2 &	   1.508$-$2 & 7.515$-$2	   & 3.934$-$2  &  1.724$-$2  \\
2 & 12   & 	0.059 &       0.028 &	    0.011 &    7.865$-$2 &   4.837$-$2 &	   2.264$-$2 & 1.955$-$1	   & 9.893$-$2  &  4.189$-$2  \\
2 & 13   & 	0.140 &       0.070 &	    0.035 &    4.683$-$2 &   2.706$-$2 &	   1.835$-$2 & 2.194$-$1	   & 1.108$-$1  &  4.292$-$2  \\
2 & 14   & 	0.099 &       0.049 &	    0.031 &    3.081$-$2 &   1.936$-$2 &	   9.344$-$3 & 2.018$-$1	   & 9.542$-$2  &  3.901$-$2  \\
2 & 15   & 	0.035 &       0.018 &	    0.010 &    3.601$-$2 &   2.157$-$2 &	   1.060$-$2 & 2.118$-$2	   & 1.356$-$2  &  8.386$-$3  \\
2 & 16   & 	0.090 &       0.045 &	    0.020 &    5.164$-$2 &   3.272$-$2 &	   2.405$-$2 & 1.598$-$1	   & 7.657$-$2  &  2.840$-$2  \\
2 & 17   & 	0.081 &       0.035 &	    0.015 &    4.712$-$2 &   2.662$-$2 &	   1.277$-$2 & 1.053$-$1	   & 5.557$-$2  &  2.432$-$2  \\
2 & 18   & 	0.118 &       0.053 &	    0.027 &    8.664$-$2 &   4.518$-$2 &	   2.053$-$2 & 1.398$-$1	   & 5.981$-$2  &  2.052$-$2  \\
2 & 19   & 	0.171 &       0.093 &	    0.050 &    7.566$-$2 &   5.034$-$2 &	   3.169$-$2 & 1.537$-$1	   & 8.785$-$2  &  4.327$-$2  \\
2 & 20	 & 	      & 	    &		  &    9.240$-$2 &   5.633$-$2 &	   2.808$-$2 & 3.740$-$1	   & 1.291$-$1  &  4.635$-$2  \\
2 & 21	 & 	      & 	    &		  &    1.118$-$1 &   7.448$-$2 &	   5.606$-$2 & 1.966$-$1	   & 1.058$-$1  &  6.798$-$2  \\
\hline                                                                                               2 & 22  & 	0.152 &       0.066 &	    0.032 &    8.446$-$2 &   5.010$-$2 &	   2.847$-$2 & 2.931$-$1	   & 1.551$-$1  &  6.390$-$2  \\
2 & 23  & 	0.122 &       0.053 &	    0.033 &    6.416$-$2 &   3.916$-$2 &	   3.245$-$2 & 1.223$-$1	   & 6.197$-$2  &  3.494$-$2  \\
2 & 24  & 	0.125 &       0.054 &	    0.029 &    6.110$-$2 &   4.136$-$2 &	   3.164$-$2 & 7.865$-$2	   & 4.544$-$2  &  2.991$-$2  \\
2 & 25  & 	0.093 &       0.036 &	    0.016 &    3.808$-$2 &   2.613$-$2 &	   1.251$-$2 & 3.966$-$2	   & 2.529$-$2  &  1.879$-$2  \\
2 & 26  & 	0.122 &       0.054 &	    0.028 &    4.474$-$2 &   3.155$-$2 &	   2.069$-$2 & 1.486$-$1	   & 6.576$-$2  &  3.106$-$2  \\
2 & 27  & 	0.624 &       0.715 &	    0.958 &    6.641$-$1 &   6.714$-$1 &	   7.446$-$1 & 6.783$-$1	   & 7.521$-$1  &  9.556$-$1  \\
2 & 28  & 	0.274 &       0.224 &	    0.263 &    1.400$-$1 &   1.393$-$1 &	   1.828$-$1 & 1.552$-$1	   & 1.291$-$1  &  1.438$-$1  \\
2 & 29  & 	1.337 &       1.550 &	    2.136 &    1.520$-$0 &   1.548$-$0 &	   1.549$-$0 & 1.418$-$0	   & 1.610$-$0  &  2.080$-$0  \\
2 & 30  & 	0.130 &       0.053 &	    0.024 &    2.923$-$2 &   2.191$-$2 &	   1.624$-$2 & 6.315$-$2	   & 3.047$-$2  &  1.874$-$2  \\
2 & 31  & 	3.545 &       4.185 &	    5.811 &    4.289$-$0 &   4.431$-$0 &	   4.500$-$0 & 4.056$-$0	   & 4.625$-$0  &  5.977$-$0  \\ 
3 & 4   &  	0.082 &       0.031 &	    0.010 &    7.320$-$2 &   3.511$-$2 &	   1.180$-$2 & 1.352$-$1	   & 5.156$-$2  &  1.576$-$2  \\
3 & 5   &  	0.095 &       0.036 &	    0.011 &    7.490$-$2 &   3.613$-$2 &	   1.232$-$2 & 1.206$-$1	   & 4.800$-$2  &  1.508$-$2  \\
3 & 6   &  	0.062 &       0.023 &	    0.007 &    5.718$-$2 &   2.846$-$2 &	   9.616$-$3 & 1.059$-$1	   & 3.802$-$2  &  1.137$-$2  \\
3 & 7   &  	0.032 &       0.013 &	    0.004 &    3.368$-$2 &   1.877$-$2 &	   6.472$-$3 & 5.473$-$2	   & 2.008$-$2  &  5.993$-$3  \\
3 & 8   &  	0.024 &       0.008 &	    0.002 &    4.523$-$2 &   1.926$-$2 &	   5.966$-$3 & 4.152$-$2	   & 1.754$-$2  &  5.298$-$3  \\
3 & 9   &  	0.076 &       0.031 &	    0.009 &    1.418$-$1 &   7.953$-$2 &	   2.662$-$2 & 6.101$-$2	   & 2.742$-$2  &  8.571$-$3  \\
3 & 10  & 	0.020 &       0.008 &	    0.002 &    4.355$-$2 &   1.893$-$2 &	   5.838$-$3 & 4.211$-$2	   & 1.767$-$2  &  5.250$-$3  \\
3 & 11  & 	0.016 &       0.007 &	    0.003 &    3.996$-$2 &   1.757$-$2 &	   5.655$-$3 & 3.980$-$2	   & 1.753$-$2  &  5.573$-$3  \\
3 & 12  & 	0.020 &       0.010 &	    0.006 &    1.864$-$1 &   1.074$-$1 &	   3.684$-$2 & 6.341$-$2	   & 3.089$-$2  &  1.059$-$2  \\
3 & 13  & 	0.119 &       0.050 &	    0.015 &    5.186$-$2 &   2.452$-$2 &	   8.010$-$3 & 7.875$-$2	   & 3.642$-$2  &  1.196$-$2  \\
3 & 14  & 	0.069 &       0.034 &	    0.016 &    6.553$-$2 &   3.666$-$2 &	   1.323$-$2 & 9.052$-$2	   & 4.928$-$2  &  2.107$-$2  \\
3 & 15  & 	0.023 &       0.010 &	    0.003 &    7.676$-$2 &   3.946$-$2 &	   1.414$-$2 & 1.522$-$2	   & 6.707$-$3  &  2.063$-$3  \\                                                 
3 & 16  & 	0.046 &       0.020 &	    0.007 &    5.784$-$2 &   3.379$-$2 &	   1.321$-$2 & 4.264$-$2	   & 2.001$-$2  &  6.523$-$3  \\
3 & 17  & 	0.055 &       0.026 &	    0.012 &    8.582$-$2 &   4.626$-$2 &	   1.927$-$2 & 1.141$-$1	   & 5.648$-$2  &  2.378$-$2  \\
3 & 18  & 	0.036 &       0.014 &	    0.005 &    8.799$-$2 &   4.168$-$2 &	   1.433$-$2 & 7.205$-$2	   & 3.081$-$2  &  9.763$-$3  \\
3 & 19  & 	0.105 &       0.050 &	    0.023 &    9.557$-$2 &   5.065$-$2 &	   2.401$-$2 & 1.121$-$1	   & 5.432$-$2  &  2.078$-$2  \\
3 & 20  &  	      & 	    &		  &    7.761$-$2 &   3.980$-$2 &	   1.469$-$2 & 1.031$-$1	   & 4.112$-$2  &  1.391$-$2  \\
3 & 21  &  	      & 	    &		  &    7.417$-$2 &   3.427$-$2 &	   1.175$-$2 & 5.712$-$2	   & 2.624$-$2  &  8.977$-$3  \\
3 & 22  & 	0.035 &       0.014 &	    0.005 &    6.696$-$2 &   3.221$-$2 &	   1.028$-$2 & 5.259$-$2	   & 2.188$-$2  &  6.572$-$3  \\
3 & 23  & 	0.139 &       0.045 &	    0.013 &    4.850$-$2 &   2.454$-$2 &	   8.389$-$3 & 5.118$-$2	   & 2.366$-$2  &  7.633$-$3  \\
3 & 24  & 	0.188 &       0.058 &	    0.016 &    4.806$-$2 &   2.592$-$2 &	   9.892$-$3 & 4.211$-$2	   & 1.795$-$2  &  5.938$-$3  \\
3 & 25  & 	0.077 &       0.035 &	    0.020 &    4.152$-$2 &   2.820$-$2 &	   1.836$-$2 & 6.774$-$2	   & 3.585$-$2  &  2.196$-$2  \\
3 & 26  & 	0.090 &       0.046 &	    0.030 &    5.213$-$2 &   3.718$-$2 &	   2.734$-$2 & 6.841$-$2	   & 4.240$-$2  &  3.173$-$2  \\
3 & 27  & 	0.087 &       0.039 &	    0.015 &    2.772$-$1 &   1.819$-$1 &	   6.321$-$2 & 6.568$-$2	   & 2.808$-$2  &  1.056$-$2  \\
3 & 28  & 	0.149 &       0.069 &	    0.023 &    1.967$-$1 &   1.057$-$1 &	   3.508$-$2 & 1.574$-$1	   & 6.616$-$2  &  2.190$-$2  \\
3 & 29  & 	0.081 &       0.037 &	    0.012 &    1.179$-$1 &   6.294$-$2 &	   2.079$-$2 & 9.328$-$2	   & 3.978$-$2  &  1.293$-$2  \\
3 & 30  & 	0.203 &       0.092 &	    0.034 &    1.712$-$1 &   7.721$-$2 &	   2.835$-$2 & 2.324$-$1	   & 9.731$-$2  &  3.474$-$2  \\
3 & 31  & 	0.138 &       0.060 &	    0.023 &    1.199$-$1 &   5.453$-$2 &	   2.051$-$2 & 1.166$-$1	   & 5.706$-$2  &  2.243$-$2  \\
\hline			
\end{tabular} 
\end{table}