\\ Species Tag:        &   26001 & Name:&  CN             
\\ Version:            &       2 & & Cyanide radical, X $^2 \Sigma ^+$
\\ Date:       & Jan. 1996       & & $v$ = 0, 1
\\ Contributor:&   H. S. P. M\"uller & & $^{12}$C isotope
\\             &                 & & 
\\ Lines Listed:       & 511 / 363 & Q(300.0)=&      664.0906
\\ Freq. (GHz) $<$     &    4000 & Q(225.0)=&      498.4499
\\ Max. J:             &      35 & Q(150.0)=&      332.9077
\\ LOGSTR0=            & -8.0 / -10.0 & Q(75.00)=&      167.4335
\\ LOGSTR1=            & -8.0 / -10.0 & Q(37.50)=&       84.7308
\\ Isotope Corr.:      &  -0.006 & Q(18.75)=&       43.4081
\\ Egy. (cm$^{-1}$) $>$& 0.0 / 2042.4 & Q(9.375)=&       22.7963
\\ $\mu_a$ = & 1.45              & A=& 
\\ $\mu_b$ = &                   & B=& 56693.47 / 56171.10
\\ $\mu_c$ = &                   & C=& 
\headend 
 
      The data are from D. D. Skatrud F. C. De~Lucia, G. A. Blake, and K. V. L. N. 
Sastry, 1983, J. Mol. Spect. {\bf 99}, 35 and E. Klisch, Th. Klaus, S. P. Belov, 
G. Winnewisser, and E. Herbst, 1995, Astron. Astrophys., 304, L5. 
 
The data were used in a combined fit of all four observed vibrational states.

The dipole moment was taken from R. Thomson and F. W. Dalby, 1968, 
Can. J. Phys. {\bf 46}, 53. It was assumed to be the same for all 
vibrational states.