#zdat (zcalib by M.Zolliker 2018)
#time since midnight, R ref, R meas, sigma, Tset(nominal)
52645.67	30025.93	21644.83	0.604160575
54165.64	29820.11	21510.91	0.467856816
55898.44	26798.32	19520.59	0.169970586
57569.45	21543.45	16005.45	0.632653144
59463.51	17471.86	13249.78	0.481414582
61036.47	14493.93	11170.02	2.23731089
62615.64	12077.75	9459.09	0.50208565
64195.65	10152.99	8072.99	0.240187427
65773.50	8613.67	6946.72	0.20189106
67348.43	7341.07	6000.22	0.247305479
68920.60	6358.98	5258.48	0.212037732
70500.57	5511.73	4608.923	0.084273958
72089.46	4824.847	4078.147	0.0487042093
73666.43	4238.265	3616.722	0.0266758318
75250.59	3750.405	3228.207	0.0175527776
76829.44	3336.112	2894.11	0.0349571166
78410.57	2982.224	2605.789	0.0223807953
79990.57	2675.836	2353.485	0.0362008287
81566.47	2411.715	2133.55	0.0143527001
83141.64	2179.86	1939.095	0.0199624648
84720.60	1979.852	1769.678	0.026030751
86297.45	1802.673	1618.501	0.012525973
87925.66	1644.566	1482.174	0.0198595065
89516.43	1510.223	1366.433	0.00693541635
91121.59	1372.584	1246.724	0.00603324125
92723.60	1260.576	1148.772	0.00394968353
94321.57	1159.679	1060.275	0.00533853913
95920.58	1068.955	980.341	0.003591657
97635.83	981.947	903.534	0.00404969135
99248.43	904.734	835.127	0.00664078309
100875.80	835.783	774.011	0.00830060239
102505.81	770.855	716.33	0.00509901951
104148.42	710.532	662.67	0.00509901951
105820.59	654.781	613.046	0.00404969135
107508.45	601.812	565.814	0.00451663592
109223.49	555.283	524.292	0.00394968353
110988.42	510.188	483.7859	0.00761636396
112805.67	469.4319	447.508	0.00218632111
114699.44	431.0711	413.0986	0.00161369142
116660.61	396.1022	381.6616	0.00137258879
118719.45	363.6915	352.4441	0.00179136819
120916.47	333.9582	325.5539	0.00230412673
123338.44	306.4728	300.5998	0.0029387072
126000.57	281.0538	277.4225	0.00349356551
128781.63	257.439	255.7868	0.0025051946
131624.48	236.0546	236.089	0.00288790582
134587.42	215.9315	217.4444	0.00288513431
137610.60	197.5044	200.2677	0.00298010067
140649.42	181.3249	185.0878	0.00313623979
143855.67	164.2046	168.9138	0.00276694778
147072.65	149.8864	155.2994	0.00208422648
150279.43	136.8093	142.7678	0.00193804025
153548.44	124.8485	131.2252	0.001713476
156811.63	113.3616	120.0591	0.00175755512
160074.52	103.1222	110.0317	0.00173810241
163341.62	94.0455	101.0804	0.00146424042
166545.64	85.6353	92.7272	0.00157353106
169689.41	77.938	85.0304	0.0014366628
172774.52	70.9744	78.0162	0.00122311079
175740.61	64.5258	71.4761	0.00108120303
178462.58	61.4869	68.3755	0.000452769257
180940.60	59.8775	66.7298	0.000613188389