PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-17:57:40
G02     313.0          80.2                7.4 +/-    0.62       7.5 +/-    0.62  0.070 / 0.110
G05     166.1          30.3               11.2 +/-    2.31      19.5 +/-    2.31  0.070 / 0.090
G06     41.5           40.9                6.5 +/-    1.16       9.3 +/-    1.16  0.130 / 0.320
G12     314.3          73.1                6.6 +/-    0.58       6.9 +/-    0.58  0.110 / 0.240
G17     84.2           12.1                7.3 +/-    1.75      19.5 +/-    1.75  0.030 / 0.030
G19     70.2           31.9                8.6 +/-    2.82      14.5 +/-    2.82  0.030 / 0.030
G24     229.0          24.3               11.6 +/-    1.92      23.1 +/-    1.92  0.080 / 0.140
G25     317.5          26.9                8.2 +/-    1.10      15.4 +/-    1.10  0.140 / 0.110