PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/01-02:27:50
G01     275.0          41.3                9.2 +/-    0.98      13.1 +/-    0.98  0.060 / 0.090
G03     314.9          24.7                7.9 +/-    1.38      15.6 +/-    1.38  0.050 / 0.110
G10     127.8          20.4                9.2 +/-    1.21      20.1 +/-    1.21  0.040 / 0.060
G11     251.9          22.4                9.8 +/-    4.08      20.3 +/-    4.08  0.050 / 0.060
G14     41.2           50.9                6.2 +/-    0.43       7.7 +/-    0.43  0.040 / 0.070
G22     314.4          47.9                7.1 +/-    0.86       9.2 +/-    0.86  0.040 / 0.090
G25     53.2           16.4                6.9 +/-    1.08      16.5 +/-    1.08  0.110 / 0.260
G26     153.4          20.5               11.1 +/-    1.53      24.1 +/-    1.53  0.090 / 0.290
G31     72.1           79.8                7.5 +/-    0.47       7.6 +/-    0.47  0.040 / 0.050
G32     59.2           37.4                5.7 +/-    1.22       8.7 +/-    1.22  0.030 / 0.080