wavel.	cross section	one standard deviation

193.4	2.92e-18	2.38e-18
218.7	3.76e-18	5.12e-18
225.2	1.05e-17	1.5e-18
230.6	7.66e-18	4.87e-18
248.4	5.80e-19	7.1e-20
268.3	1.73e-19	1.20e-19
277.0	7.19e-20	7.91e-20
291.8	1.18e-19	1.23e-19
313.0	4.72e-18	5.3e-19
319.6	3.41e-18	7.8e-19
353.4	4.49e-19	4.44e-19
359.8	1.65e-19	6.70e-20
423.0	1.80e-20	9.61e-20