wavel.	cross sect.	error limit

300	1.90e-22	1.00e-23
305	7.62e-23	4.40e-24
310	3.39e-23	2.40e-24
315	1.39e-23	1.60e-24
320	5.79e-24	1.24e-24
325	1.39e-24	1.03e-24