PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/05-18:27:40
G05     48.1           20.4                7.2 +/-    1.31      15.8 +/-    1.31  0.050 / 0.060
G10     236.0          12.5               11.6 +/-    4.39      30.6 +/-    4.39  0.040 / 0.090
G13     75.7           36.1               10.2 +/-    0.72      15.9 +/-    0.72  0.080 / 0.170
G15     131.8          51.5               13.3 +/-    0.56      16.4 +/-    0.56  0.070 / 0.150
G16     314.0          12.6                8.6 +/-    1.42      22.7 +/-    1.42  0.060 / 0.130
G20     247.9          36.7               11.4 +/-    1.32      17.6 +/-    1.32  0.060 / 0.120
G21     313.5          47.2                8.4 +/-    1.25      11.0 +/-    1.25  0.030 / 0.050
G26     287.9          20.3                9.0 +/-    1.54      19.7 +/-    1.54  0.030 / 0.050
G29     154.8          73.0               10.0 +/-    1.75      10.4 +/-    1.75  0.110 / 0.360