PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/25-00:57:40
G01     320.2          13.9                9.4 +/-    2.87      24.0 +/-    2.87  0.120 / 0.250
G08     260.4          15.6               15.5 +/-    2.71      38.0 +/-    2.71  0.110 / 0.280
G10     70.5           56.6               12.6 +/-    0.91      14.8 +/-    0.91  0.030 / 0.060
G11     306.3          21.8                9.4 +/-    1.85      19.7 +/-    1.85  0.020 / 0.030
G14     285.5          70.1               12.2 +/-    0.77      12.9 +/-    0.77  0.050 / 0.060
G18     97.2           32.6               13.4 +/-    0.75      22.3 +/-    0.75  0.050 / 0.060
G27     226.2          11.5               16.3 +/-    2.29      43.9 +/-    2.29  0.060 / 0.090
G31     179.2          34.4               17.5 +/-    1.94      28.1 +/-    1.94  0.050 / 0.090
G32     346.0          72.0               11.4 +/-    0.83      11.9 +/-    0.83  0.130 / 0.390