\\ Species Tag: & 66004 & Name:& SOO-18 \\ Version: & 1 & & Sulfur dioxide \\ Date: & Nov. 1996 & & $^{16}$O$^{18}$O isotope \\ Contributor:& H. S. P. M\"uller & & \\ & & & \\ Lines Listed: & 9758 & Q(300.0)=& 12706.042 \\ Freq. (GHz) $<$ & 3550 & Q(225.0)=& 8247.949 \\ Max. J: & 80 & Q(150.0)=& 4487.201 \\ LOGSTR0= & -7.5 & Q(75.00)=& 1586.536 \\ LOGSTR1= & -6.5 & Q(37.50)=& 561.686 \\ Isotope Corr.: & -2.690 & Q(18.75)=& 199.254 \\ Egy. (cm$^{-1}$) $>$& 0.0 & Q(9.375)=& 70.946 \\ $\mu_a$ = & 0.0328 & A=& 59101.185 \\ $\mu_b$ = & 1.6327 & B=& 9724.645 \\ $\mu_c$ = & & C=& 8331.562 \headend These measurements are based on fits to the data from (1) the compilation of F. J. Lovas, 1978, J. Phys. Chem. Ref. Data {\bf 7}, 1445; and from (2) E. Klisch, S. P. Belov, and G. Winnewisser, private communication (1996). Some higher distortion constants have been fixed to values of the $^{32}$SO$_2$ isotopomer. The dipole moment is assumed to be the same as for the $^{32}$S isotope; the rotation of the axis system has been taken into account.