\\ Species Tag:        &   14004 & Name:&  CD             
\\ Version:            &       1 & & $^2$H-Methylidyne
\\ Date:       & April 2009       & & X $^2 \Pi$ states
\\ Contributor:&  B. J. Drouin & & 
\\             &  D. T. Halfen & & 
\\ Lines Listed:       &     188 & Q(300.0)=&      318.5597 
\\ Freq. (GHz) $<$     &    1863 & Q(225.0)=&      237.1778 
\\ Max. J:             &       4 & Q(150.0)=&      156.1106 
\\ LOGSTR0=            &   -12.0 & Q(75.00)=&       75.9504 
\\ LOGSTR1=            &   -12.0 & Q(37.50)=&       37.3039 
\\ Isotope Corr.:      &     0.  & Q(18.75)=&       19.6247 
\\ Egy. (cm$^{-1}$) $>$&     0.0 & Q(9.375)=&       11.8284 
\\ $\mu_a$ = & 1.46              & A=& 
\\ $\mu_b$ = &                   & B=& 230895.031
\\ $\mu_c$ = &                   & C=& 
\headend 
 
      The laboratory spectra of Halfen D.T., {\it et al.} Ap. J. 687(1), 731-736, 2008, were  fit to a Hund's case (b) Hamiltonian with fine and hyperfine structure parameters.   The dipole moment for the main isotopomer
was taken from D. J. Phelps and F. W. Dalby, 1966, Phys. Rev. Lett. {\bf 16}, 3.