Calculated fitting coefficients for E8M20
theta_pi	f	chi2	A	dA	B	dB	C	dC
7.5	1	0.3292	10.234	0.40588	0.1539	0.55491	2.7162	0.56486		
7.5	2	0.6739	10.22	0.31374	0.13987	0.42672	2.7237	0.42824	-0.14948	0.41901
22.5	1	0.5876	6.9627	1.375	-1.4702	1.3296	0.9133	2.3252		
22.5	2	1.557	7.8394	1.8876	-0.34459	2.2771	2.5634	3.3582	0.42629	0.91946
37.5	1	2.234	5.7815	7.7728	-4.5213	8.9747	-0.13552	1.9956		
52.5	1	0.2464	6.0603	0.27408	-3.0714	0.58987	-0.05991	0.60414		
52.5	2	0.9183	3.0312	1.529	-3.0693	0.39377	-0.055377	0.44525	-4.2881	2.1607
67.5	1	0.3766	5.7323	0.2098	-2.9129	0.30836	0.13406	0.2619		
67.5	2	1.15	5.7064	0.12912	-2.9398	0.24935	0.1167	0.17099	-0.044421	0.20806
82.5	1	0.3088	5.0028	0.22854	-2.7752	0.30497	-0.074871	0.37264		
82.5	2	0.6044	5.0671	0.20616	-2.609	0.29205	0.056975	0.34462	0.22588	0.21339
97.5	1	0.3128	4.1864	0.12852	-2.1228	0.1813	-0.51748	0.1656		
97.5	2	0.9794	4.1957	0.074916	-2.1496	0.10655	-0.49712	0.096751	-0.069737	0.10523
112.5	1	0.3227	3.5547	0.11412	-2.0391	0.15895	-0.54375	0.13764		
112.5	2	0.9901	3.5444	0.07102	-2.0584	0.096025	-0.53491	0.08267	-0.057329	0.095257
127.5	1	0.3443	2.6963	0.10888	-1.2635	0.14747	-0.56714	0.15346		
127.5	2	0.4369	2.6994	0.083206	-1.2123	0.11532	-0.56399	0.12122	-0.17412	0.10533
142.5	1	0.3994	2.1423	0.27637	-0.82035	0.26236	-0.61629	0.45645		
142.5	2	0.7256	2.2311	0.34917	-0.65251	0.45527	-0.77305	0.60624	-0.11717	0.25224