\\ Species Tag:        &   50010 & Name:&  MgNC          
\\ Version:            &       1 & & Magnesium
\\ Date:       &  Sept. 1995     & & isocyanide,
\\ Contributor:&  J. C. Pearson  & & X $^2\Sigma$  
\\                     &         & & 
\\ Lines Listed:       &     269 & Q(300.0)=&     2098.7613
\\ Freq. (GHz) $<$     &     999 & Q(225.0)=&     1573.8011
\\ Max. J:             &      99 & Q(150.0)=&     1049.0468
\\ LOGSTR0=            &    -8.0 & Q(75.00)=&      524.6652
\\ LOGSTR1=            &    -8.0 & Q(37.50)=&      262.6184
\\ Isotope Corr.:      &         & Q(18.75)=&      131.6319
\\ Egy. (cm$^{-1}$) $>$&     0.0 & Q(9.375)=&       66.1493
\\ $\mu_a$ = & 1.000             & A=& 
\\ $\mu_b$ = &                   & B=& 5966.90    
\\ $\mu_c$ = &                   & C=& 
\headend 
 
The observed lines are from: K. Kawaguchi, E. Kagi, T. Hirano, S.
Takano, and S. Saito, 1993, Astrophys. J. {\bf406}, L39.  The first
astronomical observation was by M. Guelin, J. Cernicharo, C. Kahanem and J.
Gomez-Gonzalez, 1986, Astron. Astrophys. {\bf157}, L17. The dipole
moment is unknown and has been assumend to be unity. The molecule is in
a $^2\Sigma$ electronic ground state.