PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-18:42:30
G02     359.6          74.1                7.7 +/-    0.60       8.0 +/-    0.60  0.040 / 0.070
G05     160.7          41.4               10.6 +/-    0.76      15.0 +/-    0.76  0.040 / 0.050
G06     44.7           31.0                7.6 +/-    1.51      13.0 +/-    1.51  0.130 / 0.210
G12     270.0          81.6                7.9 +/-    1.21       8.0 +/-    1.21  0.120 / 0.190
G19     80.7           25.2                9.2 +/-    1.79      17.9 +/-    1.79  0.050 / 0.100
G24     221.0          16.6               12.5 +/-    1.94      29.8 +/-    1.94  0.060 / 0.090
G25     315.0          36.9                9.6 +/-    1.05      14.7 +/-    1.05  0.020 / 0.030
G29     291.5          12.5               12.7 +/-    1.10      33.5 +/-    1.10  0.030 / 0.020