\\ Species Tag:        &   41007 & Name:&  Si$^{13}$C
\\ Version:            &       1 & & X $^3\Pi$, v = 0 state
\\ Date:       &Dec. 1994         & & $^{13}$C isotope
\\ Contributor:&  H. M. Pickett & &
\\             &                 & &
\\ Lines Listed:       &    2417 & Q(300.0)=&  3277.5992
\\ Freq. (GHz) $<$     &    9999 & Q(225.0)=&  2330.4095
\\ Max. J:             &      90 & Q(150.0)=&  1408.5707
\\ LOGSTR0=            &    -7.0 & Q(75.00)=&  559.0332
\\ LOGSTR1=            &    -9.0 & Q(37.50)=&  217.8318
\\ Isotope Corr.:      &     0.0 & Q(18.75)=&   97.1513
\\ Egy. (cm$^{-1}$) $>$&     0.0 & Q(9.375)=&   52.0619
\\ $\mu_a$ = &1.7                & A=&
\\ $\mu_b$ = &                   & B=&19203.84
\\ $\mu_c$ = &                   & C=&
\headend

The millimeter lines are from R. Mollaaghababa, C. A. Gottlieb, J. M. Vrtilek,
and P. Thaddeus, 1990, Astrophys. J. Lett. Ed. {\bf 352}, L21-23. The dipole
moment is a theoretical one. (See normal isotope.)
The spectra were fitted to a Hunds case (b) Hamiltonian. The 
correlation of states in case (b) with those for case (a) are: 
\begin{center}\begin{tabular}{lr}
N = J   & $\Omega$ = 0\\
N = J $+$ 1  &$\Omega$ = 1\\
N = J $-$ 1 & $\Omega$ = 2\\
\end{tabular}\end{center}