#zdat (zcalib by M.Zolliker 2018)
#time since midnight, R ref, R meas, sigma, Tset(nominal)
68978.32	30735.82	1512.111	0.0276568256
71081.40	30499.41	1506.2	0.0294618397
73409.31	26777.48	1419.781	0.0463130651
75695.48	19555.94	1227.699	0.995753433
79651.48	14369.98	1066.082	0.0620934779
81863.52	12098.09	982.738	0.0469638159
84103.71	10255.35	907.662	0.0257604348
86364.43	8738.47	839.872	0.033280625
88612.39	7512.55	779.427	0.0513819034
90845.43	6468.1	723.522	0.0186975934
93093.47	5650.95	675.837	0.0138600144
95350.51	4932.991	630.797	0.0226296266
97683.43	4348.822	591.198	0.0253692728
100017.35	3845.173	554.555	0.0243413229
102295.43	3428.716	522.017	0.0313703682
104572.52	3074.578	492.4754	0.00938424211
106894.48	2771.201	465.737	0.0107554637
109181.39	2507.518	441.1545	0.00757924798
111453.48	2277.624	418.5383	0.00906868237
113773.43	2072.856	397.3525	0.00967083244
116058.35	1895.083	378.0304	0.00833090631
118331.51	1736.713	360.0195	0.0101412524
120600.47	1592.63	342.8355	0.0086663141
122887.35	1469.281	327.5985	0.00602702248
126420.47	1344.918	311.4616	0.00650107683
129587.35	1243.624	297.7064	0.010311353
131875.43	1149.349	284.4407	0.00776279589
134197.35	1060.945	271.4952	0.00548780466
136565.51	973.244	258.1015	0.0097941309
138974.39	895.103	245.6604	0.00407480061
141387.30	826.758	234.3444	0.00527674142
143804.39	763.973	223.5041	0.00659158555
146218.35	705.732	213.0346	0.00892882971
148687.31	651.429	202.8896	0.00587060474
151203.43	599.691	192.8421	0.00610974631
153805.47	554.096	183.5906	0.00762522131
156406.35	509.708	174.2451	0.00777875311
159097.31	469.3577	165.4827	0.00727743087
161885.43	431.3417	156.7577	0.00227178344
164796.31	396.4574	148.5041	0.0028929224
167790.43	364.3202	140.6076	0.00107888832
170925.46	335.0445	133.1457	0.00231106036
174508.35	307.9112	125.9952	0.00220363336
178640.46	282.8479	119.1397	0.00310821492
182864.46	259.1364	112.4209	0.00287906235
187468.34	237.4572	106.0575	0.00233773395
191735.45	217.8915	100.105	0.00177763888
196129.33	199.4812	94.3165	0.00135830777
200572.58	183.2949	89.0437	0.00304647337
205247.33	166.268	83.3038	0.00223517337
209795.46	151.934	78.3092	0.00412746896
214372.37	138.7801	73.5454	0.00253061257
218901.51	126.8054	69.0751	0.00275844159
223475.46	115.2719	64.6178	0.00327658359
228011.50	104.9727	60.4973	0.00299349294
232377.34	95.9041	56.7604	0.00225033331
236820.46	87.3498	53.1259	0.00288946362
241181.50	79.5938	49.70344	0.00111823075
245458.34	72.5573	46.53101	0.00105085204
249715.46	66.0015	43.49537	0.000830548012
253030.46	62.9247	42.03926	0.000630269784
255989.34	61.1608	41.19317	0.000632779582