18 19 1 1 1 1 1.6150e-09 0.74830 8.4330e+02 2.2660e+08 -1 Radiative recombination coefficients: Badnell, N. R., 2006, ApJS, 167, 334 Produced for the CHIANTI database by R.P. Dufresne on Thu Aug 29 11:43:01 2024 -1