\begin{table}%t3
%\centering
\par
 { 
\caption{\label{tab3}Field star decontamination statistics.}
\par
\begin{tabular}{lrrrrrrr}
\hline
\hline
\noalign{\smallskip}
Target&$(R_{\rm max})$&$N_{\rm obs}$&$N_{\rm cl}$&$N_{1\sigma}$&$\sigma_{\rm FS}$&$FS_{\rm unif}$\\
&$(\arcmin)$&(stars)&(stars)&&(stars)& \\
($1$)&($2$)&($3$)&($4$)&($5$)&($6$)&($7$)\\
\hline
\multicolumn{7}{c}{~~~~~Confirmed OCs}\\
Cz~22 &$3$&$177\pm13$&$93\pm3$&$6.5$&$11.7$&$0.09$\\
FSR~735 &$3$&$175\pm13$&$84\pm3$&$6.1$&$3.0$&$0.02$\\
FSR~807 &$4$&$150\pm12$&$93\pm3$&$7.1$&$4.8$&$0.04$\\
FSR~812 &$3$&$92\pm10$&$56\pm2$&$5.7$&$2.2$&$0.03$\\
FSR~826&$5$&$423\pm21$&$98\pm33$&$4.8$&$8.7$&$0.02$\\
FSR~852 &$4$&$359\pm19$&$122\pm4$&$6.3$&$10.5$&$0.04$\\
FSR~904 &$5$&$196\pm14$&$104\pm4$&$7.1$&$6.5$&$0.05$\\
FSR~941 &$3$&$99\pm10$&$58\pm2$&$5.8$&$3.8$&$0.07$\\
FSR~953 &$5$&$387\pm20$&$92\pm4$&$3.9$&$24.4$&$0.07$\\
FSR~955 &$3$&$141\pm12$&$57\pm2$&$4.3$&$6.8$&$0.06$\\
NGC~2234 &$4$&$250\pm16$&$84\pm4$&$5.0$&$18.2$&$0.08$\\
\cline{2-7}
\multicolumn{7}{c}{~~~~~Uncertain cases}\\
FSR~815 &$2$&$45\pm7$&$32\pm1$&$4.7$&$1.8$&$0.06$\\
FSR~883 &$3$&$196\pm14$&$62\pm4$&$4.1$&$7.3$&$0.05$\\
FSR~902 &$2$&$97\pm10$&$42\pm2$&$4.3$&$2.9$&$0.05$\\
FSR~921 &$3$&$90\pm9$&$44\pm2$&$4.5$&$4.4$&$0.08$\\
FSR~951 &$2$&$105\pm10$&$50\pm2$&$4.8$&$7.9$&$0.13$\\
\cline{2-7}
\multicolumn{7}{c}{~~~~~Possible field fluctuations}\\
FSR~714 &$3$&$126\pm11$&$34\pm3$&$1.9$&$16.5$&$0.14$ \\
FSR~717 &$2$&$35\pm6$&$24\pm1$&$4.0$&$1.7$&$0.09$ \\
FSR~719  &$2$&$62\pm8$&$22\pm1$&$2.7$&$6.9$&$0.15$\\
FSR~721  &$3$&$88\pm9$&$37\pm2$&$3.8$&$8.6$&$0.15$\\
FSR~723 &$2$&$74\pm9$&$33\pm1$&$3.7$&$2.6$&$0.05$\\
FSR~732 &$3$&$90\pm9$&$37\pm3$&$3.7$&$19.6$&$0.30$\\
FSR~733 &$3$&$119\pm11$&$35\pm2$&$3.0$&$3.0$&$0.03$\\
FSR~753 &$3$&$58\pm8$&$27\pm1$&$3.4$&$3.4$&$0.09$\\
FSR~775 &$5$&$362\pm19$&$81\pm4$&$2.0$&$42.6$&$0.28$\\
FSR~778 &$2$&$40\pm9$&$29\pm1$&$3.9$&$2.8$&$0.13$\\
FSR~821 &$5$&$391\pm20$&$81\pm5$&$3.6$&$44.5$&$0.12$\\
FSR~858 &$3$&$192\pm14$&$53\pm2$&$1.0$&$12.5$&$0.07$\\
FSR~891 &$3$&$156\pm12$&$54\pm3$&$3.5$&$4.2$&$0.03$\\
FSR~900 &$3$&$171\pm13$&$50\pm3$&$3.6$&$9.1$&$0.07$\\
FSR~903 &$2$&$87\pm9$&$35\pm2$&$3.7$&$2.7$&$0.05$\\
FSR~906 &$2$&$87\pm9$&$36\pm2$&$3.7$&$6.5$&$0.11$\\
FSR~909 &$2$&$82\pm9$&$38\pm2$&$3.3$&$7.1$&$0.12$\\
FSR~924 &$2$&$83\pm9$&$36\pm2$&$3.9$&$3.4$&$0.06$\\
FSR~928 &$2$&$43\pm7$&$10\pm1$&$0.6$&$1.5$&$0.03$\\
FSR~931 &$3$&$154\pm12$&$50\pm3$&$3.8$&$9.1$&$0.08$\\
FSR~933 &$3$&$130\pm11$&$35\pm3$&$2.8$&$6.2$&$0.06$\\
FSR~936 &$2$&$74\pm9$&$29\pm2$&$3.3$&$2.1$&$0.04$\\
FSR~937 &$3$&$154\pm12$&$46\pm3$&$3.2$&$5.5$&$0.04$\\
FSR~939 &$2$&$82\pm9$&$36\pm2$&$4.0$&$2.9$&$0.05$\\
FSR~940 &$3$&$123\pm11$&$18\pm2$&$0.9$&$4.9$&$0.10$\\
FSR~952 &$2$&$50\pm7$&$28\pm1$&$3.9$&$1.9$&$0.07$\\
FSR~960 &$3$&$156\pm12$&$52\pm3$&$4.0$&$6.5$&$0.05$\\
FSR~962 &$3$&$138\pm12$&$30\pm3$&$1.5$&$18.4$&$0.14$\\
FSR~975 &$3$&$154\pm12$&$46\pm3$&$3.6$&$8.0$&$0.07$\\
\hline
\end{tabular}}
\par
\tablefoot {
 The statistics of the full magnitude range covered by the respective CMD. CMDs extracted from $0\la {R}(')\la {R}_{\rm max}$. 
}
\end{table}