PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/08-17:27:30
G02     229.2          68.6                9.6 +/-    1.09      10.2 +/-    1.09  0.090 / 0.340
G05     174.1          11.4                5.8 +/-   31.23      15.6 +/-   31.23  0.120 / 0.280
G06     42.9           61.5               10.9 +/-    0.64      12.2 +/-    0.64  0.040 / 0.070
G12     322.5          51.1                8.8 +/-    1.13      10.9 +/-    1.13  0.030 / 0.070
G17     67.1           24.6               10.4 +/-    0.93      20.5 +/-    0.93  0.040 / 0.070
G19     48.6           44.7                9.7 +/-    0.35      13.1 +/-    0.35  0.040 / 0.050
G24     249.1          37.5               11.3 +/-    0.99      17.2 +/-    0.99  0.070 / 0.090