wavel.	cross section	error limit

280	5.45e-20	1.3e-21
285	6.13e-20	1.9e-21
290	6.04e-20	1.9e-21
295	6.45e-20	1.8e-21
300	5.94e-20	2.5e-21
305	5.61e-20	2.4e-21
310	4.38e-20	1.8e-21
315	3.75e-20	2.7e-21
320	2.51e-20	1.3e-21
325	1.96e-20	2.3e-21
330	1.23e-20	1.6e-21