\begin{table}%t2
%\centering
\par
\caption{$3\sigma$ upper limits for undetected Praesepe members. Upper
limits have been derived from the summed dataset.}
\begin{tabular}{lccrrrlll}
\hline\hline
\noalign{\smallskip}
Name& RA$_{\rm X}$& DEC$_{\rm X}$& count rate& $L_{\rm X}$& $V$& $B-V$& Mem&
Notes \\
 & \multicolumn{2}{c}{(J2000)}& (cts/ksec)& ($a$)& & 
$(R-I)_{\rm c}$\hskip -3pt *& & ($b$)\\
\hline
\noalign{\smallskip}
KW 150  & $8\>39\>06.11$& $19\>40\>36.5$& 0.54& 1.44&  7.45& 0.26 & Y?& \\
KW 229  & $8\>39\>57.78$& $19\>32\>29.2$& 0.19& 0.51&  7.54& 0.25 & Y & SB2,
X\\
KW 276  & $8\>40\>18.10$& $19\>31\>55.1$& 0.21& 0.55&  7.54& 0.16 & Y & SB \\
KW 284  & $8\>40\>20.14$& $19\>20\>56.4$& 0.40& 1.06&  6.77& 0.27 & Y & SB2\\
KW 300  & $8\>40\>27.01$& $19\>32\>41.3$& 0.22& 0.59&  6.30& 0.17 & Y?& SB2\\
KW 348  & $8\>40\>56.30$& $19\>34\>49.2$& 1.29& 3.43&  6.78& 0.17 & Y?& SB \\
KW 573  & $8\>40\>13.83$& $19\>44\>55.9$& 0.80& 2.11& 16.06& 1.50 & Y & \\
JC 212  & $8\>40\>31.55$& $19\>41\>43.2$& 0.41& 1.10& 15.20& 1.47 & Y & \\
JS 254  & $8\>38\>53.59$& $19\>34\>17.0$& 0.62& 1.63& 14.16& 1.33 & Y & \\
JS 301  & $8\>39\>36.51$& $19\>29\>07.9$& 0.25& 0.66& 15.12& 1.48 & Y & \\
JS 713  & $8\>39\>46.70$& $19\>44\>12.0$& 0.46& 1.23& 18.35&      & Y?&
$(V-I)_{\rm k} = 2.82$\\
HSHJ 304& $8\>40\>13.00$& $19\>45\>49.7$& 0.81& 2.14&      & 2.00*& Y & \\
RIZpr 11& $8\>39\>47.72$& $19\>28\>03.6$& 0.22& 0.59&      &      & Y &
$I_{\rm c} =19.47$, $I_{\rm c}-K_{\rm UKIRT} = 3.61$ \\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
\multicolumn{9}{l}{$(a)$ Luminosity in the {\it ROSAT} band ($0.1{-}2.4$~keV)
in units of $10^{28}$ erg~s$^{-1}$.}\\
\multicolumn{9}{l}{$(b)$ An X indicates ROSAT detections. For the other
notes see text} \\
\multicolumn{9}{l}{RIZpr 11 is from \citet{pinfield97}.}
\end{tabular}
\label{upplim}
\end{table}