wavel.	cross section	error limit

280	5.44e-20	3.3e-21
285	6.39e-20	8.2e-21
290	5.99e-20	4.1e-21
295	6.62e-20	4.3e-21
300	5.61e-20	1.9e-21
305	5.29e-20	4.1e-21
310	4.72e-20	3.4e-21
315	3.99e-20	2.9e-21
320	2.94e-20	2.8e-21
325	1.85e-20	3.1e-21
330	1.06e-20	2.1e-21