\\ Species Tag:        &   74003 & Name:&  C3H6O2    
\\ Version:            &       2 & & hydroxyacetone, 
\\ Date:       &  Oct. 2010      & & ground state 
\\ Contributor:&  B. J. Drouin   & & 
\\             &  R. Braakman    & &
\\ Lines Listed:       &  108659 & Q(300.0)=&  320915.6160  
\\ Freq. (GHz) $<$     &     950 & Q(225.0)=&  212702.6459  
\\ Max. J:             &     100 & Q(150.0)=&  116581.0824  
\\ LOGSTR0=            &    -9.0 & Q(75.00)=&   40884.2530  
\\ LOGSTR1=            &    -9.0 & Q(37.50)=&   14189.0281  
\\ Isotope Corr.:      &     0.0 & Q(18.75)=&    4843.3009  
\\ Egy. (cm$^{-1}$) $>$&     0.0 & Q(9.375)=&    1603.7821  
\\ $\mu_a$ = &  2.22             & A=&  9894.643
\\ $\mu_b$ = &  2.16             & B=&  4005.900
\\ $\mu_c$ = &  0.0              & C=&  2862.968
\headend

Hydroxyacetone is a low barrier asymmetric top internal methyl rotor. The original work of Kattija-Ari, M., \& Harmony, M. D. 1980, Int. J. Quantum Chem. Symp., No. 14, 443, provided dipole moment components and initial A/E-ground state assignments.  Brewster et al. Ap. J. 652:1787Y1795, 2006, Apponi et al. Ap. J. 643 L29, 2006
 and Braakman et al. J. Mol. Spec. 264, 43-49, 2010, followed with high precision microwave millimeter-wave and submillimeter-wave data analyzed with the RAM.  This catalog entry is based on the same data set presented in Braakman et al. 

The partition function is calculated numerically for both A \& E states up to J = 100.