\\ Species Tag:        &  124001 & Name:&  C9O 
\\ Version:            &       1 & & Nonacarbon monoxide 
\\ Date:       &  May 1996       & & X $^1 \Sigma ^+$
\\ Contributor:&  H. S. P.  M\"uller & & 
\\             &                 & & 
\\ Lines Listed:       &     100 & Q(300.0)=&    21237.3998
\\ Freq. (GHz) $<$     &      59 & Q(225.0)=&    15958.1034
\\ Max. J:             &     100 & Q(150.0)=&    10641.4691
\\ LOGSTR0=            &    -8.0 & Q(75.00)=&     5320.7441
\\ LOGSTR1=            &    -3.5 & Q(37.50)=&     2660.4931
\\ Isotope Corr.:      &         & Q(18.75)=&     1330.4018
\\ Egy. (cm$^{-1}$) $>$&     0.0 & Q(9.375)=&      665.3648
\\ $\mu_a$ = & 5.421             & A=& 
\\ $\mu_b$ = &                   & B=&  293.7361 
\\ $\mu_c$ = &                   & C=&  
\headend 

The data were taken from 
T. Ogata, Y. Ohshima, and Y. Endo, 
1995, J. Am. Chem. Soc. {\bf 117} 3593.

The dipole moment is from an $ab \ initio$ calculation: 
N. Moazzen-Ahmadi and F. Zerbetto, 
1995, J. Chem. Phys. {\bf 103}, 6343.

The partition function has been calculated up to $J$ = 360 
because of the low rotational constant.