\\ Species Tag: & 53003 & Name:& C-13-CCO \\ Version: & 1 & & Tricarbon monoxide, \\ Date: &Jan. 1990 & & X $^1 \Sigma ^+$, \\ Contributor:& R. L. Poynter & & $^{13}$C isotope \\ & & & on carbon atom 3 \\ Lines Listed: & 99 & Q(300.0)=& 1350.206 \\ Freq. (GHz) $<$ & 915 & Q(225.0)=& 1012.511 \\ Max. J: & 99 & Q(150.0)=& 675.150 \\ LOGSTR0= & -5.6 & Q(75.00)=& 337.676 \\ LOGSTR1= & -3.7 & Q(37.50)=& 169.005 \\ Isotope Corr.: & -1.955 & Q(18.75)=& 84.664 \\ Egy. (cm$^{-1}$) $>$& 0.0 & Q(9.375)=& 42.501 \\ $\mu_a$ = & 2.391 & A=& \\ $\mu_b$ = & & B=&4632.8406(37) \\ $\mu_c$ = & & C=& \headend The line measurements were taken from R. D. Brown {\it et al.}, 1985, J. Am. Chem. Soc. {\bf 107}, 4112. The dipole moment was assumed to be the same as for the parent species.