PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-00:28:10
G05     50.9           12.2                7.2 +/-    1.99      19.1 +/-    1.99  0.110 / 0.170
G10     239.8          16.6               13.8 +/-    1.82      33.1 +/-    1.82  0.170 / 0.130
G13     68.7           35.5               10.9 +/-    1.37      17.1 +/-    1.37  0.060 / 0.060
G15     118.7          55.4               12.2 +/-    0.47      14.4 +/-    0.47  0.070 / 0.060
G16     308.0          14.7                6.5 +/-    2.16      16.3 +/-    2.16  0.050 / 0.100
G20     249.1          29.2               14.1 +/-    2.10      25.2 +/-    2.10  0.070 / 0.090
G21     317.6          49.9               10.2 +/-    0.77      12.8 +/-    0.77  0.110 / 0.340
G26     280.1          20.1                8.7 +/-    1.34      19.0 +/-    1.34  0.110 / 0.320
G29     160.0          67.2               12.6 +/-    0.61      13.5 +/-    0.61  0.040 / 0.030