PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/13-04:27:50
G05     49.4           14.9                3.5 +/-    1.97       8.8 +/-    1.97  0.100 / 0.310
G10     236.7          12.8                7.2 +/-    3.27      19.0 +/-    3.27  0.120 / 0.270
G13     75.0           36.5                7.9 +/-    0.83      12.3 +/-    0.83  0.080 / 0.200
G15     122.7          52.8                8.1 +/-    0.42       9.9 +/-    0.42  0.090 / 0.220
G16     312.9          13.1                6.2 +/-    4.58      16.2 +/-    4.58  0.040 / 0.060
G20     260.5          59.7                7.0 +/-    1.34       8.0 +/-    1.34  0.060 / 0.060
G21     313.5          47.2                6.8 +/-    0.77       8.9 +/-    0.77  0.190 / 0.340
G25     199.6          10.6                3.6 +/-    3.32      10.0 +/-    3.32  0.190 / 0.310
G26     285.2          20.7                7.8 +/-    1.13      16.9 +/-    1.13  0.060 / 0.090
G29     156.8          72.1                7.2 +/-    0.89       7.5 +/-    0.89  0.080 / 0.100