PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-18:42:50
G01     59.2           30.3               11.7 +/-    0.51      20.4 +/-    0.51  0.110 / 0.350
G07     142.7          21.7               13.1 +/-    1.34      27.7 +/-    1.34  0.100 / 0.380
G11     48.0           23.4               11.1 +/-    0.80      22.6 +/-    0.80  0.060 / 0.140
G13     261.5          34.9               14.5 +/-    1.10      23.0 +/-    1.10  0.050 / 0.120
G15     294.0          16.0               12.3 +/-    1.63      29.8 +/-    1.63  0.030 / 0.040
G17     258.0          74.9               13.6 +/-    0.74      14.0 +/-    0.74  0.020 / 0.040
G18     41.9           12.5               10.2 +/-    0.87      26.9 +/-    0.87  0.040 / 0.050
G19     233.3          49.6               15.3 +/-    0.97      19.4 +/-    0.97  0.040 / 0.060
G28     37.5           56.3               12.2 +/-    0.63      14.3 +/-    0.63  0.030 / 0.060
G30     144.3          51.1               13.3 +/-    1.02      16.5 +/-    1.02  0.030 / 0.040