PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/09-02:28:00
G01     318.5          20.3                5.4 +/-    1.67      11.8 +/-    1.67  0.140 / 0.280
G08     260.5          12.9                8.4 +/-    2.82      21.9 +/-    2.82  0.180 / 0.280
G10     82.5           50.9                8.0 +/-    0.74      10.0 +/-    0.74  0.040 / 0.040
G11     302.6          22.8                6.1 +/-    1.07      12.6 +/-    1.07  0.040 / 0.050
G14     296.4          70.5                6.8 +/-    0.47       7.2 +/-    0.47  0.130 / 0.260
G18     303.3          42.0                7.6 +/-    1.36      10.7 +/-    1.36  0.180 / 0.280
G20     106.6          28.2                7.7 +/-    1.10      13.9 +/-    1.10  0.030 / 0.040
G31     174.0          44.4                9.0 +/-    0.55      12.2 +/-    0.55  0.040 / 0.040
G32     8.2            67.2                5.8 +/-    0.98       6.3 +/-    0.98  0.050 / 0.090