The left and right panels show results for the Fe X and Fe XIII lines, respectively. Top panels: the density matrix elements ﹩{\rho }_{0}^{0}({\alpha }_{\ell }{J}_{\ell })﹩. Bottom panels: the term F(N_e, T_e), the fractional alignment ﹩{\sigma }_{0}^{2}({\alpha }_{\ell }{J}_{\ell })﹩ (lower level) and the fractional alignment ﹩{\sigma }_{0}^{2}({\alpha }_{u}{J}_{u})﹩ (upper level) for the Fe X 174.531 Å and Fe XIII 202.021 Å lines as a function of the radial distance R/R_Sun in the spherically symmetric 1D quiet-Sun coronal model of Figure 1.