#zdat (zcalib by M.Zolliker 2018)
#time since midnight, R ref, R meas, sigma, Tset(nominal)
69371.44	30686.18	9601.92	0.39744182
71469.31	30467.96	9551.56	0.32471526
73800.44	26779.6	8690.61	0.329681665
77838.31	17360.43	6331.26	0.241743666
80037.31	14363.87	5510.38	0.356033706
82253.52	12100.81	4851.474	0.512704983
84494.13	10247.47	4288.951	0.162471228
86767.32	8745.19	3811.17	0.216245231
89001.51	7515.95	3404.914	0.193541727
91232.39	6468.73	3042.738	0.0509666558
93485.48	5650.52	2747.625	0.0605185922
95740.44	4932.53	2479.784	0.0443891879
98075.68	4347.762	2252.79	0.0989343216
100406.75	3845.064	2050.62	0.119774789
102683.51	3428.456	1877.265	0.10739879
104963.44	3074.161	1725.374	0.068471892
107280.51	2771.187	1591.527	0.0724161584
109567.32	2507.176	1471.023	0.0274244417
111842.51	2277.259	1363.871	0.0190499344
114165.47	2072.269	1265.941	0.0247568172
116445.48	1894.977	1179.068	0.020918891
118720.43	1736.748	1099.829	0.0232142198
120985.59	1592.416	1025.981	0.027944588
123276.35	1469.12	961.958	0.0218082553
126813.46	1344.063	895.402	0.0174241212
129980.47	1244.139	841.156	0.0119331471
132263.43	1149.286	788.889	0.0250778787
134587.31	1060.848	739.162	0.026030751
136952.99	973.165	689.028	0.0248515593
139364.42	894.966	643.533	0.0360568995
141778.35	826.637	603.257	0.0289844786
144198.35	763.762	565.509	0.0171726527
146604.43	705.529	530.033	0.024861617
149076.31	651.21	496.2873	0.00849358582
151590.47	599.55	463.8609	0.0118291589
154196.31	553.946	434.751	0.0060876925
156793.51	509.431	405.9639	0.0120037078
159485.52	469.058	379.5798	0.00343744091
162273.51	430.9495	354.1733	0.0144229331
165183.51	396.0893	330.5048	0.0072660856
168177.07	363.8948	308.3442	0.00542918042
171317.35	334.5402	287.7996	0.0110943229
174899.34	307.4529	268.5668	0.0104640336
179035.06	282.306	250.3982	0.0128209204
183256.35	258.6828	233.0149	0.00959108961
187854.34	237.0876	216.8876	0.00736641025
192123.42	217.448	201.9391	0.00312873776
196521.46	199.0744	187.7102	0.00529679148
200958.34	182.9094	174.9852	0.0100755149
205636.37	165.9342	161.3081	0.0101925954
210182.42	151.6281	149.5946	0.00421710801
214763.45	138.4912	138.6328	0.00252111087
219288.34	126.5479	128.4849	0.00380644191
223865.46	115.039	118.5145	0.00265047166
228407.34	104.7563	109.4509	0.00156492811
232764.42	95.6995	101.3292	0.00255264569
237210.46	87.1798	93.5466	0.00322552321
241576.50	79.4345	86.3586	0.00188785593
245845.47	72.4106	79.7347	0.00307262103
250105.46	65.8804	73.459	0.00328024389
253420.46	62.8085	70.4793	0.00161276161
256380.45	61.079	68.7862	0.00278854801