PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/18-02:12:50
G08     270.4          20.1                5.6 +/-    3.26      12.2 +/-    3.26  0.090 / 0.240
G10     52.5           60.0                5.2 +/-    0.98       5.9 +/-    0.98  0.150 / 0.260
G14     256.0          62.2                6.3 +/-    0.55       7.0 +/-    0.55  0.120 / 0.260
G18     314.4          28.0                6.9 +/-    2.80      12.6 +/-    2.80  0.090 / 0.290
G20     49.1           67.0               24.5 +/-    0.44      26.4 +/-    0.44  0.040 / 0.070
G21     154.2          20.9                6.4 +/-    1.45      13.8 +/-    1.45  0.050 / 0.050
G24     40.9           12.0                4.7 +/-    2.06      12.6 +/-    2.06  0.260 / 0.240
G27     235.6          19.1                9.0 +/-    1.56      20.2 +/-    1.56  0.150 / 0.290
G31     177.7          27.3                7.3 +/-    1.56      13.5 +/-    1.56  0.120 / 0.220
G32     329.1          75.9                7.6 +/-    0.82       7.8 +/-    0.82  0.130 / 0.210