#zdat (zcalib by M.Zolliker 2018)
#time since midnight, R ref, R meas, sigma, Tset(nominal)
55694.61	18367.18	23155.87	2.59653808
58002.62	16000.33	20173.58	1.41518903
60496.43	13189.4	16617.35	1.8650067
62716.44	11214.77	14125.13	1.27106648
64936.42	9590.92	12072.9	0.582237065
67184.58	8285.79	10425.54	0.284675254
69456.44	7142.63	8979.72	0.248112878
71728.41	6218.89	7810.7	0.208326667
74034.62	5438.55	6823.5	0.26
76406.47	4787.825	6000.37	0.179471446
78846.44	4217.022	5276.29	0.200723691
81275.65	3749.031	4680.485	0.0779775609
83676.43	3359.879	4186.355	0.0702032763
86025.67	3027.907	3763.884	0.0706286061
88336.45	2741.481	3399.861	0.0762948229
90608.42	2489.961	3079.573	0.0589414964
92873.59	2266.593	2795.515	0.0473761543
95128.44	2069.449	2544.593	0.0652694415
97376.41	1893.935	2321.373	0.074780345
99603.58	1736.671	2121.501	0.0898493183
101873.63	1594.696	1941.619	0.0684463293
104116.44	1468.125	1781.943	0.0556246348
106365.77	1349.765	1632.697	0.0980209161
108616.46	1242.326	1496.429	0.0193106188
110882.59	1145.304	1374.678	0.0288721319
113146.48	1057.157	1264.561	0.0223360695
115424.66	977.745	1165.565	0.016507574
117733.54	901.46	1071.137	0.0225410736
120093.51	833.336	987.131	0.0260940606
122446.41	769.025	908.388	0.0227508242
124844.65	711.79	838.689	0.0248777009
127314.67	656.016	771.142	0.0122311079
129846.44	604.872	709.652	0.016297239
132400.57	558.157	653.639	0.0169970586
135526.43	515.375	602.824	0.00695701085
138252.48	474.0833	554.091	0.0222912539
141076.50	436.0584	509.376	0.0292643127
144025.79	401.3475	468.5072	0.00698111739
147144.48	368.936	430.6912	0.00647888879
150584.66	338.9483	395.7939	0.00991811474
154456.48	311.198	363.5881	0.0084005357
158483.62	285.7988	334.1887	0.00528403255
162656.44	262.4798	307.2388	0.00918237442
166923.57	240.8583	282.2605	0.00673238442
171366.44	220.7136	259.006	0.0118220134
175893.50	202.1751	237.6055	0.0119860335
180513.52	185.3083	218.1887	0.00649160997
185225.66	169.2538	199.6404	0.00969659734
189953.53	154.3734	182.5257	0.00929306193
194763.55	140.7457	166.804	0.00736613874
199518.45	128.4048	152.4416	0.00227244362
204263.51	117.2131	139.4858	0.00303907881
209068.45	106.5314	127.0913	0.00169144908
213785.67	97.0894	116.1209	0.00238096619
218496.45	88.3139	105.9193	0.00216356188
223113.52	80.6554	96.9891	0.00182455474
227733.50	73.4181	88.5385	0.00224165118
232474.48	65.5872	79.3748	0.00152184099
236218.42	62.5469	75.8047	0.00175527776
239388.44	60.9246	73.8988	0.00231430335