wavel.	cross section	one standard deviation

193.4	7.35e-19	2.37e-19
210.3	9.47e-19	3.87e-19
225.2	9.87e-19	5.01e-19
230.9	5.78e-19	2.17e-19
248.4	3.55e-20	1.13e-20
277.0	5.49e-20	4.38e-20