\begin{table}%t1
%\centering
\par
\caption{\label{freqs}Calculated wavelengths, Einstein coefficients ($A_{ij}$) and line strengths ($S_{ij}$) for the low-lying transitions of CH$_{2}$ (ignoring hyperfine-structure in the ortho transitions). The estimated error corresponding to the last significant figure of the calculated wavelengths is given in parenthesis. The Einstein coefficients and line strengths calculated here are half those given by \citet{sears}. The detected lines towards \object{Sgr B2} are shown in bold.}
%\leavevmode \footnotesize
\begin{tabular}[!t]{cccc}
\hline
\hline
Transition                   & Wavelength  & $A_{ij}$   & $S_{ij}$    \\ 
                             &  ($\mu$m)   & (s$^{-1}$) &  \\  
\hline 
1$_{11}$--0$_{00}$  $J=0$--1 & 127.31450 (6) &   0.0163 &     0.989\\
{\bf 1$_{{\bf 11}}$--0$_{{\bf 00}}$  ${\vec J} \bf =1$--1} & {\bf 127.85823 (4)} &   {\bf 0.0163} &     {\bf 3.02}\\
{\bf 1$_{{\bf 11}}$--0$_{{\bf 00}}$  ${\vec J}\bf =2$--1} & {\bf 127.64614 (5)} &   {\bf 0.0163} &     {\bf 4.99}\\
\hline
2$_{11}$--2$_{02}$  $J=1$--1 & 153.102312 (6) &   0.0105 &     3.31\\
2$_{11}$--2$_{02}$  $J=1$--2 & 154.302721 (7) &   0.00351 &     1.14\\
2$_{11}$--2$_{02}$  $J=2$--1 & 152.621311 (6) &   0.00217 &     1.14\\
2$_{11}$--2$_{02}$  $J=2$--2 & 153.814187 (6) &   0.00962 &     5.15\\
2$_{11}$--2$_{02}$  $J=2$--3 & 152.992296 (6) &   0.00216 &     1.14\\
2$_{11}$--2$_{02}$  $J=3$--2 & 154.178941 (6) &   0.00151 &     1.14\\
2$_{11}$--2$_{02}$  $J=3$--3 & 153.352914 (7) &   0.0125 &     9.25\\
\hline
3$_{13}$--2$_{02}$  $J=2$--1 &  93.5838 (1) &   0.0298 &	 3.60\\
3$_{13}$--2$_{02}$  $J=2$--2 &  94.0309 (1) &   0.00559 &	  0.685\\
3$_{13}$--2$_{02}$  $J=2$--3 &  93.7231 (2) &   0.000170 &     0.0205\\
3$_{13}$--2$_{02}$  $J=3$--2 &  93.7025 (2) &   0.0317 &	 5.37\\
3$_{13}$--2$_{02}$  $J=3$--3 &  93.3967 (2) &   0.00392 &	  0.657\\
3$_{13}$--2$_{02}$  $J=4$--3 &  93.6621 (2) &   0.0356 &	 7.75\\
\hline
1$_{10}$--1$_{01}$  $J=0$--1 & 156.43947 (1) &   0.0133 &	  0.500\\
1$_{10}$--1$_{01}$  $J=1$--0 & 155.66632 (1) &   0.00462 &     0.513\\
1$_{10}$--1$_{01}$  $J=1$--1 & 157.56539 (1) &   0.00318 &     0.366\\
1$_{10}$--1$_{01}$  $J=1$--2 & 156.76825 (1) &   0.00548 &     0.622\\
1$_{10}$--1$_{01}$  $J=2$--1 & 157.12503 (2) &   0.00323 &     0.615\\
1$_{10}$--1$_{01}$  $J=2$--2 & 156.33233 (1) &   0.0101 &	  1.88\\
\hline
2$_{12}$--1$_{01}$  $J=1$--0 & 107.2947 (2) &   0.0134 &	 0.487\\
2$_{12}$--1$_{01}$  $J=1$--1 & 108.1935 (2) &   0.0103 &	 0.385\\
2$_{12}$--1$_{01}$  $J=1$--2 & 107.8170 (2) &   0.000731 &     0.0270\\
2$_{12}$--1$_{01}$  $J=2$--1 & 107.8573 (2) &   0.0184 &	 1.13\\
2$_{12}$--1$_{01}$  $J=2$--2 & 107.4832 (2) &   0.00603 &	  0.367\\
{\bf 2$_{{\bf 12}}$--1$_{{\bf 01}}$  ${\vec J}\bf =3$--2} & {\bf 107.7203 (2)} &   {\bf 0.0244} &     {\bf 2.10}\\
\hline
\end{tabular} 
\end{table}