PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/12-04:42:40
G07     6.6            66.6                4.9 +/-    0.54       5.3 +/-    0.54  0.030 / 0.030
G08     68.0           48.8                6.0 +/-    1.02       7.7 +/-    1.02  0.030 / 0.030
G09     176.5          52.3                8.2 +/-    0.47      10.0 +/-    0.47  0.090 / 0.100
G11     132.9          24.5                8.8 +/-    1.53      17.4 +/-    1.53  0.090 / 0.110
G23     160.3          26.9                5.4 +/-    1.75      10.1 +/-    1.75  0.070 / 0.150
G27     44.1           23.0                3.8 +/-    1.60       7.9 +/-    1.60  0.070 / 0.130
G28     251.4          40.2                6.3 +/-    1.56       9.2 +/-    1.56  0.040 / 0.040
G30     314.0          45.0                5.0 +/-    1.20       6.7 +/-    1.20  0.050 / 0.050