PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-23:57:50
G08     285.8          23.3                9.2 +/-    1.06      18.7 +/-    1.06  0.040 / 0.030
G10     21.4           62.9                6.0 +/-    0.76       6.6 +/-    0.76  0.030 / 0.030
G14     235.5          50.8               10.0 +/-    1.76      12.5 +/-    1.76  0.110 / 0.120
G18     317.5          15.7                4.9 +/-    2.60      12.1 +/-    2.60  0.110 / 0.130
G20     73.4           48.9                7.5 +/-    0.59       9.5 +/-    0.59  0.050 / 0.070
G21     149.4          34.5                8.9 +/-    1.58      14.2 +/-    1.58  0.050 / 0.080
G24     49.4           20.9                5.1 +/-    0.97      11.0 +/-    0.97  0.080 / 0.160
G27     249.3          28.5                7.3 +/-    1.05      13.2 +/-    1.05  0.080 / 0.140
G31     182.1          12.2               11.0 +/-    2.83      29.1 +/-    2.83  0.040 / 0.120
G32     263.1          73.4                7.6 +/-    0.53       7.9 +/-    0.53  0.050 / 0.120