PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-02:42:40
G10     302.1          53.3               10.4 +/-    1.00      12.6 +/-    1.00  0.090 / 0.090
G14     211.5          12.3                9.4 +/-   18.41      25.0 +/-   18.41  0.100 / 0.070
G15     46.0           27.3                8.3 +/-    1.43      15.4 +/-    1.43  0.030 / 0.030
G20     330.3          63.0               15.9 +/-    0.56      17.6 +/-    0.56  0.040 / 0.030
G21     104.2          73.0               12.1 +/-    0.83      12.6 +/-    0.83  0.070 / 0.100
G24     92.9           27.4                9.7 +/-    1.76      18.0 +/-    1.76  0.070 / 0.130
G27     297.0          35.4               10.7 +/-    2.87      16.9 +/-    2.87  0.240 / 0.610
G32     211.6          36.9               13.4 +/-    1.25      20.6 +/-    1.25  0.120 / 0.440