wl ratio uncen ratio_r uncen_r    wl_uncer
1300	197.48261	1.1376    29.3
1500	196.06488	1.4504    43.9
1200	196.19306	1.105     23.1
1600	197.33696	1.0162    51.2	
1400	198.27084	1.2952    36.2