#zdat (zcalib by M.Zolliker 2018)
#time since midnight, R ref, R meas, sigma, Tset(nominal)
68722.64	17531.17	10633.29	0.857257254
71328.41	13330.84	8083.26	0.26540535
73528.42	11425.14	6924.97	0.183874958
75724.51	9840.4	5960.87	0.329863608
77923.52	8571.17	5192.06	0.224588513
80118.41	7466.74	4517.686	0.129020929
82315.79	6550.96	3960.979	0.076973372
84513.51	5780.21	3492.439	0.0787965735
86765.65	5132.55	3099.327	0.0884878523
88971.62	4559.758	2751.176	0.130155292
91176.43	4060.378	2446.512	0.11531522
93397.44	3630.101	2184.11	0.0870057469
95616.45	3253.868	1954.44	0.0798122798
97843.50	2923.319	1752.925	0.0657457223
100073.51	2627.932	1571.225	0.0304055916
102344.52	2370.234	1413.734	0.0277560804
104578.41	2150.142	1279.449	0.0167600716
106806.42	1957.363	1161.562	0.0310096759
109033.64	1786.655	1057.449	0.0247163913
111263.52	1635.455	965.314	0.0256593063
113496.42	1502.113	884.469	0.0203199409
115728.43	1378.845	809.441	0.018732325
117957.44	1267.013	741.77	0.0177763888
120218.41	1165.534	680.449	0.022020445
122482.62	1073.671	625.031	0.0277290461
124753.51	990.947	575.427	0.0196494275
127064.48	912.183	528.317	0.0237507895
129374.50	842.163	455.1186	0.00993498868
131694.51	776.392	418.8698	0.00908713376
134058.44	718.058	387.0787	0.00647618715
136468.46	661.415	356.441	0.00712460525
138948.43	609.401	328.2859	0.00928164856
141483.52	561.961	302.7278	0.0101121709
144078.46	518.647	279.5876	0.00618417335
146763.50	476.7639	257.4781	0.00626490223
149540.60	438.3446	237.1628	0.00518613536
152446.45	403.1694	218.6274	0.00531450844
156028.43	370.0706	201.3174	0.00643303972
159433.53	340.3971	185.8325	0.00764362479
163228.43	312.4427	171.2608	0.00988008097
167164.33	286.6935	157.9546	0.0326457348
171193.34	263.1844	145.7734	0.0271688056
175379.29	241.3738	134.4808	0.0192866793
179688.27	221.1137	123.907	0.0260614658
184070.45	202.4894	114.3116	0.0282762091
188598.43	185.5163	105.4609	0.0176286415
193113.45	169.445	97.1176	0.0188802542
197824.48	154.4099	89.3238	0.0241953715
239658.44	65.544	81.2136	0.00253061257
243377.42	62.4943	77.5486	0.00339470175
246496.48	60.8736	75.6053	0.00243741667