#zdat (zcalib by M.Zolliker 2018)
#time since midnight, R ref, R meas, sigma, Tset(nominal)
69764.40	30638.22	18719.84	1.19282857
71861.84	30442.72	18615.3	0.842970937
74192.44	26776.35	16636.01	1.12227002
78223.44	17320.22	11361.56	0.637369595
80431.44	14355.06	9636.36	0.631696129
82644.47	12091.01	8284.75	0.792243649
84890.80	10243.09	7156.14	0.364472221
87155.43	8737.56	6215.95	0.493811705
89389.35	7518.66	5442.88	0.338762454
91623.88	6467.52	4759.653	0.0933707663
93874.40	5650.34	4220.358	0.0978345542
96127.32	4933.001	3739.038	0.0475562824
98461.47	4347.791	3338.658	0.0873017755
100798.31	3844.829	2988.784	0.055842636
103069.35	3428.503	2694.462	0.0642930789
105352.47	3074.464	2440.524	0.0880363561
107670.43	2770.911	2220.012	0.0990535209
109956.32	2507.051	2025.784	0.0563950352
112233.43	2276.881	1854.385	0.0465671558
114553.47	2072.054	1699.975	0.055789784
116832.47	1894.889	1564.556	0.0373951869
119106.31	1736.261	1442.74	0.0296984848
121377.35	1592.277	1330.889	0.044417339
123663.39	1469.002	1235.003	0.023283041
127204.51	1343.354	1135.941	0.0261323554
130367.31	1244.465	1057.437	0.0114061387
132651.87	1149.222	981.441	0.022020445
134973.39	1060.763	910.369	0.0163370744
137342.39	973.003	839.631	0.0245540221
139751.11	894.866	776.232	0.0205329004
142169.35	826.461	720.546	0.021549942
144585.47	763.631	669.185	0.0266926956
146993.47	705.335	621.461	0.0215615398
149463.43	651.072	576.737	0.0195984693
151978.31	599.379	534.118	0.029590539
154580.47	553.736	496.1132	0.0108671984
157179.35	509.168	459.0848	0.0108247864
159882.47	468.8436	425.6125	0.00794638282
162662.47	430.7373	393.6757	0.0103711619
165570.47	395.8739	364.3494	0.00958352753
168568.35	363.5937	337.0796	0.00508369944
171708.34	334.1494	312.0544	0.0099027269
175291.39	307.0576	288.9328	0.00650661202
179424.51	281.9014	267.3086	0.0106828835
183673.46	258.2773	246.8958	0.00778948009
188247.34	236.7848	228.1787	0.00935419692
192509.34	217.1037	210.9033	0.00637973354
196914.46	198.7328	194.6808	0.00552593883
201352.42	182.6272	180.3184	0.00580551462
206027.33	165.632	165.0638	0.00707361294
210571.41	151.3614	152.1127	0.0037577919
215149.34	138.2521	140.1373	0.00378430971
219673.62	126.3309	129.139	0.00255734237
224260.45	114.8299	118.4398	0.00241163845
228798.34	104.574	108.8045	0.00258553669
233151.38	95.5229	100.2404	0.0018984204
237600.47	87.0347	92.1302	0.0020918891
241964.42	79.3035	84.681	0.00191311265
246234.19	72.2863	77.8747	0.00209308385
250490.46	65.7741	71.4977	0.00327429382
253817.34	62.7107	68.466	0.0019078784
256767.46	61.0047	66.7795	0.0026201145