PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-08:57:50
G01     118.8          18.1                5.6 +/-    1.32      12.8 +/-    1.32  0.040 / 0.050
G07     83.1           65.7                5.4 +/-    0.72       5.8 +/-    0.72  0.030 / 0.060
G08     44.1           29.2                1.6 +/-    0.47       2.9 +/-    0.47  0.150 / 0.290
G09     173.4          20.9                6.6 +/-    1.46      14.3 +/-    1.46  0.160 / 0.300
G11     104.5          40.2                7.2 +/-    1.25      10.4 +/-    1.25  0.030 / 0.030
G13     317.3          20.1                3.1 +/-    3.18       6.7 +/-    3.18  0.030 / 0.030
G17     201.0          26.6                5.3 +/-    1.66      10.0 +/-    1.66  0.130 / 0.340
G18     92.2           20.9                5.6 +/-    0.78      12.0 +/-    0.78  0.100 / 0.330
G28     291.8          56.9                4.8 +/-    1.07       5.6 +/-    1.07  0.100 / 0.230
G30     343.7          67.8                1.7 +/-    1.20       1.8 +/-    1.20  0.110 / 0.220