#zdat (zcalib by M.Zolliker 2018)
#time since midnight, R ref, R meas, sigma, Tset(nominal)
69464.39	30672.51	1510.658	0.0598631773
71560.43	30459.51	1505.433	0.0209785605
73892.39	26778.54	1420.007	0.0286373881
77927.39	17353.35	1164.801	0.0238096619
80128.31	14363.02	1066.136	0.0452150417
82345.44	12103.74	982.803	0.0516730104
84588.32	10243.02	907.105	0.0433416659
86857.32	8742.53	839.781	0.0618619431
89091.48	7515.83	779.67	0.0268700577
91326.31	6468.03	723.459	0.0288253361
93578.47	5649.9	675.79	0.025019992
95831.39	4932.228	630.829	0.0304778608
98165.43	4347.975	591.134	0.020746084
100497.31	3844.905	554.469	0.0197711912
102773.44	3428.377	521.976	0.0232465051
105054.47	3074.261	492.4327	0.0135963598
107371.43	2771.304	465.7472	0.00799349736
109657.35	2507.3	441.1384	0.0101795874
111932.44	2277.21	418.5059	0.0109237814
114255.43	2072.314	397.3201	0.00733546181
116536.30	1894.939	378.0264	0.00553389555
118811.43	1736.652	359.9977	0.00889949437
121076.31	1592.257	342.8126	0.00704017045
123367.31	1469.107	327.5708	0.00793322129
126907.30	1343.893	311.3074	0.00768921322
130070.47	1244.213	297.7878	0.00787756307
132353.39	1149.258	284.4266	0.00492585018
134678.35	1060.84	271.4775	0.00662004532
137044.43	973.113	258.0917	0.00584987179
139455.46	894.926	245.6522	0.00329180801
141872.43	826.578	234.307	0.00898888202
144289.36	763.728	223.4557	0.00850299947
146695.43	705.459	212.9922	0.00771854909
149166.71	651.226	202.8492	0.00631949365
151681.39	599.533	192.8026	0.00422894786
154287.35	553.826	183.5542	0.00748037432
156884.43	509.35	174.1761	0.00837430594
159575.51	468.9874	165.3913	0.00476245735
162365.48	430.9065	156.6554	0.00178437664
165274.47	396.0296	148.4022	0.00375978723
168267.35	363.82	140.4868	0.001713476
171411.38	334.4575	133	0.00164316767
174989.35	307.368	125.8406	0.00368836007
179126.10	282.2119	118.9573	0.00159405144
183347.34	258.5873	112.2554	0.0020356817
187949.34	237.0163	105.9215	0.00242590189
192213.46	217.3624	99.944	0.00144913767
196612.42	198.9824	94.1594	0.00205036582
201049.33	182.847	88.8996	0.00252665787
205727.33	165.8531	83.1581	0.00335991071
210273.38	151.5587	78.1757	0.0029190752
214853.37	138.4317	73.4199	0.00392542991
219378.34	126.489	68.9535	0.00132853303
223961.42	114.9805	64.5025	0.00253475837
228498.34	104.7078	60.3875	0.00291290233
232855.45	95.6535	56.6556	0.00276839304
237301.78	87.1441	53.0322	0.0035771497
241666.46	79.4015	49.61811	0.000966276358
245936.34	72.3829	46.45349	0.000783256025
250195.62	65.858	43.42639	0.000668199072
253509.34	62.7878	41.96844	0.000928137921
256469.34	61.0623	41.14454	0.000921542186