PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/14-02:28:10
G01     117.4          19.2                8.3 +/-    1.58      18.6 +/-    1.58  0.040 / 0.050
G07     85.3           65.4                6.8 +/-    0.35       7.4 +/-    0.35  0.040 / 0.050
G08     44.5           30.6                4.1 +/-    1.24       7.1 +/-    1.24  0.030 / 0.030
G09     177.3          24.9                8.6 +/-    1.82      16.9 +/-    1.82  0.020 / 0.030
G11     106.3          40.3                8.2 +/-    0.86      11.9 +/-    0.86  0.080 / 0.090
G13     317.3          19.9                4.1 +/-    1.42       9.0 +/-    1.42  0.090 / 0.080
G17     202.3          26.5                7.2 +/-    1.20      13.6 +/-    1.20  0.130 / 0.130
G28     297.6          58.4                6.2 +/-    0.73       7.2 +/-    0.73  0.080 / 0.120
G30     358.8          72.0                5.6 +/-    0.19       5.9 +/-    0.19  0.120 / 0.150