\begin{table}
\caption{The spectral energy distribution (sorted by wavelength) given as
$\lambda F_\lambda$ in SI units.}\label{nufnu}
\begin{tabular}{rcccc}
\hline\hline
$\lambda$ & \multicolumn{2}{c}{08281-4850} & \multicolumn{2}{c}{14325-6428} \\
          & $\lambda F_\lambda$ & $\Delta\lambda F_\lambda$ & $\lambda F_\lambda$ & $\Delta\lambda F_\lambda$ \\
$\mu$m    & W~m$^{-2}$  & W~m$^{-2}$  & W~m$^{-2}$  & W~m$^{-2}$ \\
\hline\noalign{\smallskip}
 0.3464 & 1.50\xt{-15} & 2.2\xt{-16} & 2.94\xt{-14} & 7.6\xt{-15} \\
 0.4227 & 1.52\xt{-14} & 1.5\xt{-15} & 1.79\xt{-13} & 1.7\xt{-14} \\
 0.4442 &              &             & 3.11\xt{-13} & 6.6\xt{-14} \\
 0.5488 & 4.74\xt{-14} & 2.2\xt{-15} & 3.60\xt{-13} & 1.7\xt{-14} \\
 0.5537 &              &             & 3.41\xt{-13} & 5.8\xt{-14} \\
 0.6938 & 1.10\xt{-13} & 1.6\xt{-14} &              &             \\
 0.7886 & 1.24\xt{-13} & 5.9\xt{-15} &              &             \\
 0.7910 &              &             & 6.38\xt{-13} & 1.2\xt{-14} \\
 0.7910 &              &             & 7.22\xt{-13} & 2.7\xt{-14} \\
 1.2280 &              &             & 7.47\xt{-13} & 3.5\xt{-14} \\
 1.2280 &              &             & 8.12\xt{-13} & 5.4\xt{-14} \\
 1.2350 & 2.22\xt{-13} & 5.5\xt{-15} & 7.62\xt{-13} & 2.1\xt{-14} \\
 1.2500 & 2.27\xt{-13} & 1.1\xt{-14} & 7.42\xt{-13} & 3.5\xt{-14} \\
 1.6200 & 1.83\xt{-13} & 8.6\xt{-15} &              &             \\
 1.6500 &              &             & 5.78\xt{-13} & 2.7\xt{-14} \\
 1.6620 & 1.68\xt{-13} & 4.9\xt{-15} & 5.38\xt{-13} & 1.6\xt{-14} \\
 2.1450 &              &             & 3.37\xt{-13} & 1.6\xt{-14} \\
 2.1450 &              &             & 3.90\xt{-13} & 3.4\xt{-14} \\
 2.1590 & 1.08\xt{-13} & 2.9\xt{-15} & 3.36\xt{-13} & 1.0\xt{-14} \\
 2.1900 & 1.04\xt{-13} & 3.9\xt{-15} &              &             \\
 2.2000 &              &             & 3.18\xt{-13} & 1.5\xt{-14} \\
 3.6000 &              &             & 1.09\xt{-13} & 1.1\xt{-14} \\
 8.2800 &              &             & 2.59\xt{-13} & 1.1\xt{-14} \\
12.0000 & 5.57\xt{-13} & 2.7\xt{-14} & 8.27\xt{-13} & 5.0\xt{-14} \\
12.1300 &              &             & 8.27\xt{-13} & 4.4\xt{-14} \\
14.6500 &              &             & 1.45\xt{-12} & 8.8\xt{-14} \\
21.3400 &              &             & 2.48\xt{-12} & 1.5\xt{-13} \\
25.0000 & 1.18\xt{-12} & 7.1\xt{-14} & 3.67\xt{-12} & 1.4\xt{-13} \\
60.0000 & 1.81\xt{-13} & 1.8\xt{-14} & 8.54\xt{-13} & 9.5\xt{-14} \\
\hline
\end{tabular}
\end{table}