T	delta
350	0.652
320	0.702
300	0.736
290	0.736
280	0.568
270	0.518
270	0.255
250	0.548
250	0.250
230	0.582
230	0.266
210	0.624
210	0.274
190	0.598
190	0.230
180	0.326
170	0.349
150	0.349
130	0.373
100	0.373
70	0.373
40	0.373
20	0.373
15	0.373