T(K) cross sect. at 174 nm 1580 3.05e-17 1600 3.17e-17 1650 3.50e-17 1700 3.86e-17 1750 4.26e-17 1800 4.70e-17 1850 5.18e-17 1900 5.71e-17 1950 6.30e-17 2000 6.95e-17 2050 7.67e-17 2100 8.46e-17