PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-09:12:50
G01     312.1          29.7                4.8 +/-    1.96       8.4 +/-    1.96  0.080 / 0.140
G10     99.1           43.3                6.5 +/-    0.96       9.0 +/-    0.96  0.080 / 0.110
G11     288.2          27.5                4.5 +/-    1.05       8.3 +/-    1.05  0.090 / 0.120
G14     342.2          69.7                4.2 +/-    0.43       4.4 +/-    0.43  0.120 / 0.130
G18     285.5          49.5                3.5 +/-    1.15       4.5 +/-    1.15  0.040 / 0.050
G20     116.4          18.7                5.1 +/-    1.69      11.6 +/-    1.69  0.040 / 0.050
G22     308.3          23.8                3.1 +/-    1.10       6.1 +/-    1.10  0.040 / 0.050
G25     88.4           14.0                3.2 +/-    2.91       8.2 +/-    2.91  0.040 / 0.050
G31     171.0          57.5                6.4 +/-    0.69       7.4 +/-    0.69  0.060 / 0.140
G32     22.6           60.3                4.7 +/-    1.10       5.3 +/-    1.10  0.070 / 0.170