\begin{table}%t2
\caption{\label{tab:mags}The $UBVRIz$, $JHK_{\rm s}L'$ and Spitzer IRAC magnitudes of the Crab Pulsar and its knot.}              
%\centerline
{                      
\small\begin{tabular}{c c c c}        
\hline\hline
Bandpass & Crab Pulsar + Knot & Crab Pulsar & Knot \\
\hline
$U$ & $16.68\pm0.03$ & $16.69\pm0.03$ & $21.57\pm0.13$ \\
$B$ & $17.22\pm0.02$ & $17.23\pm0.02$ & $21.91\pm0.08$ \\
$V$ & $16.64\pm0.02$ & $16.66\pm0.03$ & $20.72\pm0.07$ \\
$R$ & $16.14\pm0.01$ & $16.17\pm0.02$ & $20.02\pm0.07$ \\
$I$ & $15.61\pm0.01$ & $15.65\pm0.02$ & $19.26\pm0.08$ \\
$z$ & $15.35\pm0.04$ & $15.39\pm0.05$ & $18.88\pm0.08$ \\
$J$   & $14.72\pm0.03$ & $14.83\pm0.03$ & $17.24\pm0.06$ \\
$H$   & $14.13\pm0.02$ & $14.28\pm0.02$ & $16.33\pm0.04$ \\
$K_{\rm s}$ & $13.64\pm0.02$ & $13.80\pm0.01$ & $15.80\pm0.03$ \\
$L'$  & $12.65\pm0.08$ & $12.86\pm0.07$ & $14.51\pm0.15$ \\
$3.6$ & $12.54\pm0.07$ & ... & ... \\
$4.5$ & $12.04\pm0.07$ & ... & ... \\
$5.8$ & $11.55\pm0.07$ & ... & ... \\
$8.0$ & $10.94\pm0.08$ & ... & ... \\
\hline
\end{tabular}}
\end{table}