\\ Species Tag: & 44005 & Name:& CH3CHO-e
\\ Version: & 1 & & Acetaldehyde
\\ Date: & Dec. 1980 & & ground torsional state,
\\ Contributor:& H. M. Pickett & &E state
\\ & & &
\\ Lines Listed: & 691 & Q(300.0)=& 12111.557
\\ Freq. (GHz) $<$ & 2995 & Q(225.0)=& 7866.836
\\ Max. J: & 15 & Q(150.0)=& 4282.526
\\ LOGSTR0= & -9.0 & Q(75.00)=& 1513.910
\\ LOGSTR1= & -10.8 & Q(37.50)=& 535.303
\\ Isotope Corr.: & 0.0 & Q(18.75)=& 189.452
\\ Egy. (cm$^{-1}$) $>$& 0.069 & Q(9.375)=& 67.298
\\ $\mu_a$ = & 2.55 & A=&56448.5
\\ $\mu_b$ = & 0.87 & B=&10160.1
\\ $\mu_c$ = & & C=&9101.3
\headend
The data set used is referenced by A. Bauder, F. J. Lovas, and D. R.
Johnson, 1976, J. Phys. Chem. Ref. Data {\bf 5}, 53. The lines were fit
to a Hamiltonian that included terms up to the sixth power in angular momentum
as well as $P_a$, $P_a P^2$, $P_a P^4$, $P_a^3$, $P_a^3 P^2$, and $P_a^5$ terms.
The fit produced observed--calculated frequencies that were 3.5 times the
experimental uncertainties in an RMS sense. The calculated line strengths
agree with those of Bauder {\it et al.}