PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/04-04:58:00
G01     251.7          35.6                7.4 +/-    2.12      11.7 +/-    2.12  0.140 / 0.190
G03     316.0          40.7                6.2 +/-    1.18       8.9 +/-    1.18  0.080 / 0.150
G11     235.8          13.3                7.9 +/-    2.37      20.4 +/-    2.37  0.110 / 0.080
G14     60.9           39.8                3.5 +/-    1.53       5.1 +/-    1.53  0.080 / 0.080
G16     165.2          16.4                5.3 +/-    4.75      12.8 +/-    4.75  0.040 / 0.040
G22     306.0          65.2                6.1 +/-    0.56       6.7 +/-    0.56  0.030 / 0.040
G23     285.4          17.5                9.2 +/-    1.24      21.5 +/-    1.24  0.170 / 0.400
G26     140.1          36.3                6.2 +/-    0.88       9.7 +/-    0.88  0.170 / 0.400
G31     40.5           61.1                4.5 +/-    0.55       5.1 +/-    0.55  0.030 / 0.030
G32     75.7           25.2                5.9 +/-    0.98      11.5 +/-    0.98  0.020 / 0.030