PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-06:27:40
G01     231.1          21.6                8.0 +/-    1.70      17.0 +/-    1.70  0.040 / 0.040
G03     301.7          61.8                4.1 +/-    0.91       4.6 +/-    0.91  0.050 / 0.050
G14     80.2           29.3                3.2 +/-    1.32       5.6 +/-    1.32  0.060 / 0.090
G16     148.3          40.2                7.9 +/-    1.25      11.5 +/-    1.25  0.090 / 0.070
G18     206.9          11.3                3.7 +/-    3.28      10.0 +/-    3.28  0.070 / 0.150
G22     238.9          74.5                6.5 +/-    1.43       6.7 +/-    1.43  0.080 / 0.190
G23     302.5          32.8                4.9 +/-    1.78       8.2 +/-    1.78  0.070 / 0.110
G26     105.0          52.1                6.2 +/-    0.55       7.6 +/-    0.55  0.070 / 0.140
G31     43.7           35.6                1.9 +/-    1.08       3.1 +/-    1.08  0.110 / 0.210