T(K)	cross sect.	error limit
	at 427.2 nm
-----------------------------------
250	5.3e-17		5.0e-18	
273	4.3e-17		4.0e-18	
298	3.1e-17		3.0e-18
317	2.3e-17		2.0e-18	
341	2.3e-17		2.0e-18	
373	2.1e-17		2.0e-18