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                9.5 +/-    1.51      13.6 +/-    1.51  0.080 / 0.160
G03     314.9          24.7                6.8 +/-    2.07      13.4 +/-    2.07  0.080 / 0.160
G10     127.8          20.4                6.6 +/-    1.26      14.4 +/-    1.26  0.040 / 0.060
G11     251.9          22.4               10.4 +/-    0.98      21.5 +/-    0.98  0.040 / 0.050
G14     41.2           50.9                7.0 +/-    1.21       8.7 +/-    1.21  0.050 / 0.060
G22     314.4          47.9                8.2 +/-    0.69      10.7 +/-    0.69  0.050 / 0.070
G25     53.2           16.4                8.5 +/-    3.59      20.5 +/-    3.59  0.220 / 0.250
G26     153.4          20.5               13.1 +/-    2.52      28.6 +/-    2.52  0.190 / 0.220
G31     72.1           79.8                7.1 +/-    0.61       7.2 +/-    0.61  0.020 / 0.020
G32     59.2           37.4                7.0 +/-    1.78      10.6 +/-    1.78  0.020 / 0.030