\\ Species Tag:        &   40001 & Name:&  CH3CCH         
\\ Version:            &       1 & & Propyne
\\ Date:       &  Dec. 1979      & & 
\\ Contributor:&  R. L. Poynter  & & 
\\             &                 & & 
\\ Lines Listed:       &     813 & Q(300.0)=&     5428.751 
\\ Freq. (GHz) $<$     &    1345 & Q(225.0)=&     3524.521 
\\ Max. J:             &      79 & Q(150.0)=&     1920.879 
\\ LOGSTR0=            &    -6.7 & Q(75.00)=&      679.673 
\\ LOGSTR1=            &    -5.8 & Q(37.50)=&      241.268 
\\ Isotope Corr.:      &     0.  & Q(18.75)=&       88.267 
\\ Egy. (cm$^{-1}$) $>$&     0.0 & Q(9.375)=&       34.419 
\\ $\mu_a$ = & 0.75              & A=& 158590.
\\ $\mu_b$ = &                   & B=&   8545.86
\\ $\mu_c$ = &                   & C=&   B
\headend 

	The experimental measurements were obtained from A. Dubrulle, D.
Boucher, J. Burie, and J. Demaison, 1978, J. Mol.~Spect.~{\bf 72}, 158. 
The $A$ rotational constant was estimated from the structure.  
The dipole moment was measured by J. S. Muenter and V. W. Laurie, 1966,
J. Chem.~Phys.~{\bf 45}, 855.