T(K cross sect. at 174 nm) 905 1.83e-18 984 1.86e-18 1030 1.84e-18 1046 1.79e-18 1704 1.89e-18 1718 1.96e-18 1906 1.95e-18 2023 1.97e-18 2037 1.88e-18