PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/05-08:42:30
G07     331.0          57.3                3.1 +/-    0.56       3.6 +/-    0.56  0.030 / 0.040
G08     97.1           50.7                6.6 +/-    0.45       8.2 +/-    0.45  0.030 / 0.030
G09     183.8          72.7                6.3 +/-    0.71       6.6 +/-    0.71  0.100 / 0.180
G11     145.3          12.8                5.1 +/-    2.54      13.4 +/-    2.54  0.110 / 0.180
G23     155.7          45.0                6.1 +/-    0.96       8.2 +/-    0.96  0.040 / 0.070
G27     57.1           32.8                3.5 +/-    0.38       5.8 +/-    0.38  0.040 / 0.080
G28     235.8          27.9                7.4 +/-    2.79      13.5 +/-    2.79  0.050 / 0.080
G30     299.5          32.2                3.7 +/-    1.78       6.2 +/-    1.78  0.050 / 0.080