#zdat (zcalib by M.Zolliker 2018) merged from ['2021-04-26', '2021-04-29']
#idx	R ref	R meas	dummy sigma
0	60.4077	70.0165	0.007
1	62.0709	71.9378	0.0072
2	65.138	75.4783	0.0075
3	71.5259	82.847	0.0083
4	78.9836	91.4431	0.0091
5	85.9834	99.5138	0.01
6	94.8613	109.7523	0.011
7	104.013	120.3137	0.012
8	114.2894	132.1785	0.013
9	125.8534	145.5443	0.015
10	137.8286	159.5017	0.016
11	150.9394	174.6906	0.017
12	165.365	191.2629	0.019
13	180.7557	209.147	0.021
14	198.1174	229.3165	0.023
15	216.4776	250.666	0.025
16	236.5375	274.0243	0.027
17	258.5669	299.6943	0.03
18	280.7071	325.5085	0.033
19	305.4425	354.3789	0.035
20	333.1477	386.7417	0.039
21	362.8994	421.5191	0.042
22	395.2286	459.3243	0.046
23	430.0387	500.0705	0.05
24	468.2107	545.033	0.055
25	508.793	592.277	0.059
26	553.677	644.92	0.064
27	601.763	701.367	0.07
28	652.608	761.07	0.076
29	707.799	826.021	0.083
30	767.616	896.381	0.09
31	835.583	976.426	0.098
32	904.377	1057.509	0.11
33	981.455	1148.519	0.11
34	1068.352	1251.183	0.13
35	1159.073	1358.592	0.14
36	1259.952	1478.247	0.15
37	1371.899	1612.128	0.16
38	1495.629	1759.542	0.18
39	1640.501	1931.349	0.19
40	1797.777	2119.551	0.21
41	1975.065	2332.46	0.23
42	2177.088	2575.55	0.26
43	2403.862	2849.513	0.28
44	2670.958	3173.44	0.32
45	2975.498	3544.495	0.35
46	3327.135	3974.283	0.4
47	3738.609	4479.621	0.45
48	4222.68	5079.19	0.51
49	4804.556	5801.31	0.58
50	5484.55	6647.34	0.66
51	6325.29	7703.96	0.77
52	7340.1	8987.5	0.9
53	8557.26	10541.1	1.1
54	10076.33	12493.68	1.2
55	11937.87	14913.07	1.5
56	14613.6	18428.56	1.8
57	17888.38	22759.57	2.3
58	21995.97	28266.33	2.8
59	26804.28	34824.47	3.5
60	31270.09	40948.93	4.1
61	35636.98	46958.95	4.7