wavel.	cross section	error limit(1 sigma)

543.52	3.075e-21	2.7e-23
594.10	4.569e-21	3.7e-23
604.13	5.125e-21	3.6e-23
611.97	4.633e-21	3.3e-23
632.82	3.383e-21	2.4e-23