PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/04-02:27:30
G03     255.1          69.9                3.5 +/-    0.67       3.7 +/-    0.67  0.040 / 0.060
G09     301.3          16.6                3.0 +/-    2.74       7.1 +/-    2.74  0.040 / 0.050
G14     94.7           19.7                4.3 +/-    1.15       9.5 +/-    1.15  0.090 / 0.220
G16     130.1          55.4                6.5 +/-    0.80       7.7 +/-    0.80  0.090 / 0.220
G22     202.6          60.6                4.9 +/-    1.14       5.5 +/-    1.14  0.040 / 0.060
G23     316.9          46.9                3.3 +/-    0.91       4.4 +/-    0.91  0.040 / 0.060
G26     75.5           52.8                5.2 +/-    1.32       6.3 +/-    1.32  0.060 / 0.080
G31     50.7           21.5                0.7 +/-    1.90       1.5 +/-    1.90  0.040 / 0.070