Calculated fitting coefficients for E8M18
theta_pi	f	chi2	A	dA	B	dB	C	dC
7.5	1	0.9564	9.8584	0.38469	-0.97437	0.53725	2.3382	0.49491		
7.5	2	1.722	9.837	0.30042	-1.1216	0.41598	2.4446	0.36566	-0.62969	0.40179
22.5	1	0.2953	6.5285	1.4044	-2.0528	1.3353	-0.37367	2.3632		
22.5	2	0.6372	4.0717	4.0976	-5.0222	4.9444	-4.7384	7.3626	-1.2565	1.8747
37.5	1	0.3477	8.2909	1.808	-1.3139	2.0238	0.52479	2.3117		
37.5	2	1.137	5.8361	2.523	-4.1424	2.9034	5.7794	5.6124	1.9166	2.1446
52.5	1	0.3317	6.6074	0.42555	-2.5319	0.67158	1.6763	0.80455		
52.5	2	0.9458	6.2624	0.50081	-3.0459	0.75666	1.1209	0.9258	-0.46623	0.37713
67.5	1	0.3149	4.9856	0.16844	-2.7182	0.23158	-0.050589	0.19572		
67.5	2	0.8261	4.9724	0.10726	-2.7196	0.15177	-0.076545	0.12937	0.05894	0.16106
82.5	1	0.3083	3.6657	0.15378	-1.9806	0.20387	-0.21062	0.23077		
82.5	2	0.8165	3.644	0.11435	-1.9513	0.15952	-0.21565	0.1805	0.072591	0.14062
97.5	1	0.6793	2.7693	0.094369	-1.6766	0.13093	-0.34541	0.11388		
97.5	2	1.872	2.7378	0.058479	-1.6652	0.079994	-0.33922	0.069533	0.074341	0.079687
112.5	1	0.3372	1.902	0.074195	-1.0186	0.10274	-0.3276	0.091895		
112.5	2	0.6194	1.8845	0.049817	-1.0162	0.068434	-0.30121	0.062219	-0.043308	0.067906
127.5	1	0.5027	1.2786	0.069692	-0.54211	0.089228	-0.33396	0.09415		
127.5	2	0.9878	1.2738	0.049117	-0.52383	0.065372	-0.30641	0.070458	-0.063329	0.065411
142.5	1	0.1256	1.6252	0.94075	0.12724	0.59399	-1.2994	1.4765		
142.5	2	0.2041	2.7061	0.50787	1.1176	0.46106	-3.0806	0.82689	-0.30341	0.19981