PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/29-02:13:00
G01     227.4          20.0                8.1 +/-    2.68      17.9 +/-    2.68  0.170 / 0.440
G03     298.8          64.0                4.4 +/-    0.75       4.8 +/-    0.75  0.170 / 0.450
G14     80.7           29.4                4.7 +/-    1.21       8.3 +/-    1.21  0.090 / 0.160
G16     147.8          40.9                7.2 +/-    0.68      10.4 +/-    0.68  0.090 / 0.150
G22     236.1          73.3                5.8 +/-    0.53       6.0 +/-    0.53  0.050 / 0.080
G23     304.8          35.5                5.2 +/-    1.82       8.2 +/-    1.82  0.050 / 0.110
G26     104.7          52.9                5.9 +/-    0.44       7.2 +/-    0.44  0.040 / 0.030
G31     44.4           34.6                3.5 +/-    1.14       5.7 +/-    1.14  0.040 / 0.030