PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/22-02:27:30
G01     319.5          16.8                4.2 +/-    1.26      10.0 +/-    1.26  0.190 / 0.230
G08     257.0          13.9                7.1 +/-    3.97      18.0 +/-    3.97  0.210 / 0.290
G10     77.8           53.7                7.5 +/-    0.92       9.0 +/-    0.92  0.090 / 0.180
G11     303.5          23.1                5.3 +/-    1.43      10.8 +/-    1.43  0.090 / 0.140
G14     290.1          69.8                7.0 +/-    0.56       7.4 +/-    0.56  0.040 / 0.050
G18     305.7          39.6                6.9 +/-    2.55      10.1 +/-    2.55  0.040 / 0.050
G20     78.3           63.2                8.6 +/-    1.68       9.5 +/-    1.68  0.130 / 0.320
G31     174.3          42.4                9.5 +/-    1.23      13.3 +/-    1.23  0.120 / 0.350
G32     9.3            67.3                5.9 +/-    0.79       6.4 +/-    0.79  0.070 / 0.100