PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/22-02:12:50
G08     263.1          17.1                9.8 +/-    1.34      23.2 +/-    1.34  0.040 / 0.060
G10     66.4           57.1                6.4 +/-    0.35       7.5 +/-    0.35  0.040 / 0.050
G11     309.0          19.5                6.9 +/-    1.67      15.5 +/-    1.67  0.100 / 0.470
G14     271.8          66.9                6.2 +/-    0.69       6.6 +/-    0.69  0.080 / 0.460
G18     310.7          34.3                5.7 +/-    1.70       9.1 +/-    1.70  0.030 / 0.030
G20     62.7           66.2               25.0 +/-    0.91      27.0 +/-    0.91  0.030 / 0.030
G21     155.5          13.8                7.5 +/-    2.58      19.3 +/-    2.58  0.160 / 0.310
G27     230.0          14.2                9.6 +/-    2.07      24.4 +/-    2.07  0.180 / 0.270
G31     176.0          35.0                9.9 +/-    1.46      15.7 +/-    1.46  0.130 / 0.290
G32     354.1          72.0                7.5 +/-    0.60       7.8 +/-    0.60  0.110 / 0.280