\\ Species Tag:        &   18006 & Name:&  13CH3D          
\\ Version:            &       1 & & 13C-Mono-deutero
\\ Date:       & May 2009       & & methane
\\ Contributor:&  B. J. Drouin  & &
\\             &  H.S.P. M\"{u}ller& &
\\ Lines Listed:       &     143 & Q(300.0)=&      807.8471
\\ Freq. (GHz) $<$     &    4825 & Q(225.0)=&      525.1756
\\ Max. J:             &      30 & Q(150.0)=&      286.6040
\\ LOGSTR0=            &    -8.0 & Q(75.00)=&      102.2782
\\ LOGSTR1=            &    -9.0 & Q(37.50)=&       36.9725
\\ Isotope Corr.:      &-5.784   & Q(18.75)=&       14.0711
\\ Egy. (cm$^{-1}$) $>$&     0.0 & Q(9.375)=&        5.9646
\\ $\mu_a$ = &   0.0056          & A=& 157412.
\\ $\mu_b$ = &                   & B=&116325.
\\ $\mu_c$ = &                   & C=&B
\headend

The  transition frequencies were taken from
(1) B.J. Drouin, S. Yu, J.C. Pearson \& H.S.P.M\"{u}ller, J. Quant. Spectrosc. Radiat. Trans. \emph{in press} 2009.
In addition, infrared ground state combination differences were used in the fit. These were published in

(2) C. Chackerian Jr., G. Guelachvili, J. Molec. Spectrosc. 1980; 80: 244-248.

Hamiltonian operators involving only $K$ were assumed to be identical to those determined via perturbed infrared transitions
for the $^{12}$CH$_3$D isotopologue in (3).
(3) C. Chackerian, Jr., E. S. Bus, W. B. Olson, and G. Guelachvili, 1986, J. Mol. Spectrosc., 117, 255;
Octic parameters which were determined for  $^{12}$CH$_3$D in (1) were held fixed in the analysis.

The dipole moment and distortion corrections are  also taken from the $^{12}$CH$_3$D isotopologue 
(4) J. K. G. Watson, M. Takami, and T. Oka, 1979, J. Chem. Phys., 70, 5376.
As the distortion effects are rather large the intensities should be viewed with increasing caution beyond J of about 8.