\\ Species Tag:        &   32001 & Name:&  O2             
\\ Version:            &       3 & & Molecular oxygen, $^{16}$O$_2$
\\ Date:       &  June 1989      & & X $^3 \Sigma^-_g$, v = 0 
\\ Contributor:&  H. M. Pickett  & & 
\\             &                 & & 
\\ Lines Listed:       &     237 & Q(300.0)=&      218.675 
\\ Freq. (GHz) $<$     &    9928 & Q(225.0)=&      164.135 
\\ Max. J:             &      61 & Q(150.0)=&      109.597 
\\ LOGSTR0=            &   -31.5 & Q(75.00)=&       55.195 
\\ LOGSTR1=            &   -18.7 & Q(37.50)=&       28.035 
\\ Isotope Corr.:      &       0 & Q(18.75)=&       14.514 
\\ Egy. (cm$^{-1}$) $>$&     0.0 & Q(9.375)=&        7.870 
\\ $\mu_a$ = &  magnetic         & A=& 
\\ $\mu_b$ = &                   & B=& 43099.795
\\ $\mu_c$ = &                   & C=& 
\headend 
 
Additional partition function values are:\\
Q(275) = 200.426\\
Q(250) = 182.231\\
Q(200) = 145.919

	The measurements and calculational method are from T. Amano and E.
Hirota, 1974, J. Mol. Spect.~{\bf 53}, 346.  The Raman lines of
O$_2$ (M. Loete and H. Berger, 1977, J. Mol. Spect.~{\bf 68}, 317)
were used with the millimeter wavelength measurements and the submillimeter 
line of W. Steinbach and W. Gordy (1973, Phys. Rev.~{\bf A8}, 1953) in a
combined fit of the v = 0 and v = 1 transitions. New measurements in the 
far-infrared by L. R. Zink and M. Mizushima, 1987, J. Mol.~Spect.~
{\bf 125}, 154, are included.  The intensities of the magnetic dipole 
transitions have been calculated using the g values obtained
from magnetic resonance by K. D. Bowers, R. A. Kamper, and C. D. Lustig, 1959,
Proc.~Roy.~Soc.~London {\bf A251}, 565.  The zero-frequency absorption
is included but the frequency is set to a synthetic frequency of $|g|J$ for the
given level. The intensity of these zero-frequency absorptions is based on
the synthetic frequency, using the equations for integrated intensity given
in Section 3.