PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/12-02:12:40
G01     318.9          19.3                6.2 +/-    1.32      13.8 +/-    1.32  0.160 / 0.230
G08     261.8          13.5                7.7 +/-    1.65      19.8 +/-    1.65  0.120 / 0.250
G10     80.7           51.6                8.7 +/-    0.73      10.7 +/-    0.73  0.040 / 0.050
G11     303.8          22.2                6.9 +/-    1.82      14.4 +/-    1.82  0.040 / 0.040
G14     292.4          70.2                6.9 +/-    0.71       7.3 +/-    0.71  0.100 / 0.110
G18     304.5          41.1                8.3 +/-    1.52      11.8 +/-    1.52  0.060 / 0.090
G20     105.6          29.0                8.9 +/-    0.75      15.9 +/-    0.75  0.100 / 0.340
G31     174.4          43.0                9.8 +/-    0.87      13.6 +/-    0.87  0.110 / 0.340
G32     6.0            68.0                7.4 +/-    0.61       7.9 +/-    0.61  0.030 / 0.030