PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-15:57:40
G02     204.9          34.6               10.4 +/-    1.53      16.6 +/-    1.53  0.080 / 0.130
G06     148.1          72.8                9.3 +/-    0.84       9.7 +/-    0.84  0.090 / 0.140
G12     310.2          21.2                8.0 +/-    2.70      17.2 +/-    2.70  0.090 / 0.170
G17     39.3           46.4                7.0 +/-    1.61       9.2 +/-    1.61  0.080 / 0.150
G19     358.1          65.3                6.4 +/-    0.60       7.0 +/-    0.60  0.030 / 0.030
G24     293.6          40.3                6.4 +/-   11.40       9.3 +/-   11.40  0.030 / 0.030
G28     104.6          29.7                7.5 +/-    1.12      13.2 +/-    1.12  0.050 / 0.030