PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-17:57:30
G02     323.5          79.7                7.3 +/-    0.58       7.4 +/-    0.58  0.040 / 0.090
G05     165.3          32.1               10.3 +/-    2.29      17.3 +/-    2.29  0.050 / 0.090
G06     41.9           39.1                6.8 +/-    1.65      10.1 +/-    1.65  0.100 / 0.230
G12     311.0          75.0                7.0 +/-    0.43       7.3 +/-    0.43  0.190 / 0.240
G17     85.7           11.0                8.2 +/-    1.94      22.4 +/-    1.94  0.190 / 0.170
G19     72.0           30.8                8.0 +/-    1.72      13.9 +/-    1.72  0.130 / 0.130
G24     227.6          23.0               10.1 +/-    2.35      20.6 +/-    2.35  0.040 / 0.030
G25     317.3          28.6                7.0 +/-    1.51      12.6 +/-    1.51  0.030 / 0.030