PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-02:12:40
G01     313.1          27.6                7.8 +/-    2.29      14.3 +/-    2.29  0.050 / 0.030
G10     96.2           46.7                8.9 +/-    0.45      11.8 +/-    0.45  0.030 / 0.030
G11     289.4          28.5                7.3 +/-    0.84      13.2 +/-    0.84  0.100 / 0.150
G14     340.6          69.9                8.2 +/-    0.38       8.6 +/-    0.38  0.100 / 0.100
G18     111.3          20.8                7.7 +/-    1.01      16.5 +/-    1.01  0.110 / 0.160
G22     306.1          19.0                8.4 +/-    1.37      19.0 +/-    1.37  0.130 / 0.140
G25     87.1           13.6                8.0 +/-    1.78      20.7 +/-    1.78  0.040 / 0.030
G31     174.8          54.0               11.0 +/-    0.64      13.2 +/-    0.64  0.030 / 0.030
G32     22.2           60.5                8.1 +/-    1.21       9.2 +/-    1.21  0.020 / 0.040