\\ Species Tag: & 18001 & Name:& OD \\ Version: & 1 & & Hydroxyl radical, \\ Date: & May 1983 & & X $^2 \Pi$ states \\ Contributor:& H. M. Pickett & & deuterium isotope \\ & & & \\ Lines Listed: & 912 & Q(300.0)=& 212.422 \\ Freq. (GHz) $<$ & 9926 & Q(225.0)=& 153.391 \\ Max. J: & 17 & Q(150.0)=& 97.477 \\ LOGSTR0= & -10.3 & Q(75.00)=& 48.967 \\ LOGSTR1= & -10.3 & Q(37.50)=& 30.896 \\ Isotope Corr.: & -3.824 & Q(18.75)=& 25.021 \\ Egy. (cm$^{-1}$) $>$& 0.0 & Q(9.375)=& 24.010 \\ $\mu_a$ = & 1.653 & A=& \\ $\mu_b$ = & & B=& 296312. \\ $\mu_c$ = & & C=& \headend The microwave data have been reported in R. A. Beaudet and R. L. Poynter, 1978, J. Phys.\ Chem.\ Ref.\ Data {\bf 7}, 311. Additional data have been reported in J. M. Brown and J. E. Schubert, 1982, J. Mol.\ Spect.\ {\bf 95}, 194. Predictions of the rotational lines were included in the fit. The calculation involved fitting the spectra to effective parameters for the two $^2\Pi$ states.