PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/06-08:57:50
G08     284.8          21.3                6.8 +/-    1.15      14.4 +/-    1.15  0.050 / 0.090
G10     32.3           62.5                4.3 +/-    0.66       4.8 +/-    0.66  0.050 / 0.090
G14     240.7          51.8                7.7 +/-    1.07       9.5 +/-    1.07  0.080 / 0.290
G18     317.1          18.8                4.7 +/-    1.44      10.6 +/-    1.44  0.070 / 0.240
G20     94.0           21.8                3.5 +/-    0.67       7.5 +/-    0.67  0.080 / 0.130
G21     151.3          29.1                6.9 +/-    0.98      12.3 +/-    0.98  0.090 / 0.130
G24     47.0           19.4                1.7 +/-    0.72       3.7 +/-    0.72  0.070 / 0.130
G27     242.7          24.9                7.3 +/-    1.47      14.3 +/-    1.47  0.060 / 0.140
G31     179.9          18.2                7.0 +/-    0.98      16.1 +/-    0.98  0.080 / 0.150
G32     285.6          76.2                6.8 +/-    0.45       6.9 +/-    0.45  0.060 / 0.160