T(K) cross sect. at 174 nm 864 3.45e-19 919 4.23e-19 968 4.08e-19 1051 4.01e-19 1132 4.47e-19 1618 8.34e-19 1746 8.96e-19 1868 9.47e-19 2063 9.99e-19 2256 1.06e-18