PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-06:13:10
G03     237.9          66.5                5.9 +/-    0.58       6.4 +/-    0.58  0.060 / 0.050
G07     250.1          10.8               -4.3 +/-   18.76     -11.8 +/-   18.76  0.050 / 0.050
G09     306.0          22.8                2.8 +/-    1.94       5.8 +/-    1.94  0.090 / 0.370
G14     102.7          11.1                3.3 +/-    1.97       8.9 +/-    1.97  0.060 / 0.430
G16     127.2          61.0                8.8 +/-    0.61       9.9 +/-    0.61  0.070 / 0.130
G22     193.5          53.1                7.2 +/-    1.24       8.7 +/-    1.24  0.100 / 0.140
G23     320.1          49.8                3.9 +/-    0.94       4.9 +/-    0.94  0.080 / 0.170
G26     68.4           52.7                5.7 +/-    0.62       6.9 +/-    0.62  0.090 / 0.180
G31     53.0           19.3                2.4 +/-    0.85       5.4 +/-    0.85  0.090 / 0.470