PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/17-06:28:10
G01     222.7          13.6                6.5 +/-    1.27      16.6 +/-    1.27  0.040 / 0.040
G03     276.8          68.6                5.3 +/-    0.52       5.7 +/-    0.52  0.040 / 0.050
G09     298.0          13.2                6.7 +/-    3.19      17.4 +/-    3.19  0.140 / 0.230
G14     90.6           22.1                1.5 +/-    1.16       3.0 +/-    1.16  0.120 / 0.210
G16     137.3          51.1                6.4 +/-    1.12       8.0 +/-    1.12  0.100 / 0.260
G22     208.9          66.5                6.9 +/-    0.86       7.4 +/-    0.86  0.090 / 0.260
G23     310.9          40.6                4.3 +/-    1.07       6.2 +/-    1.07  0.060 / 0.090
G26     84.0           53.4                5.1 +/-    0.41       6.2 +/-    0.41  0.050 / 0.100
G31     47.9           25.8                3.2 +/-    1.90       6.1 +/-    1.90  0.040 / 0.060