\\ Species Tag: & 2001 & Name:& D-atom \\ Version: & 1 & & $^2S_{1/2}$ ground state \\ Date: & Oct. 1979 & & \\ Contributor:& H. M. Pickett & & \\ & & & \\ Lines Listed: & 1 & Q(300.0)=& 6.00 \\ Freq. (GHz) $<$ & 1 & Q(225.0)=& 6.00 \\ Max. J: & 2 & Q(150.0)=& 6.00 \\ LOGSTR0= & -10.3 & Q(75.00)=& 6.00 \\ LOGSTR1= & -4.3 & Q(37.50)=& 6.00 \\ Isotope Corr.: & -3.824 & Q(18.75)=& 6.00 \\ Egy. (cm$^{-1}$) $>$& 0.0 & Q(9.375)=& 6.00 \\ $\mu_a$ = & & A=& \\ $\mu_b$ = & & B=& \\ $\mu_c$ = & & C=& \headend The atomic deuterium line at 327 MHz has been measured to an accuracy of 0.002 Hz (D.~J. Wineland and N.~F. Ramsey, 1972, Phys. Rev. A {\bf 5}, 821). The average spontaneous emission lifetime for the four F = 3/2 states is $4.695 \times 10^{-17}$ sec$^{-1}$.