PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/13-03:27:50
G08     271.3          20.4                9.3 +/-    1.25      20.3 +/-    1.25  0.020 / 0.020
G10     47.8           61.2                7.1 +/-    0.70       8.0 +/-    0.70  0.030 / 0.020
G11     313.7          15.3                4.5 +/-    2.34      11.2 +/-    2.34  0.090 / 0.230
G14     256.9          64.1               10.0 +/-    0.57      11.0 +/-    0.57  0.130 / 0.220
G18     85.0           41.2                7.1 +/-    0.93      10.1 +/-    0.93  0.210 / 0.240
G21     153.0          20.8                8.1 +/-    1.42      17.4 +/-    1.42  0.150 / 0.220
G24     43.0           15.6                4.5 +/-    1.81      11.0 +/-    1.81  0.030 / 0.030
G27     234.9          19.4               11.9 +/-    3.82      26.6 +/-    3.82  0.030 / 0.020
G31     179.8          23.9               10.0 +/-    1.77      20.1 +/-    1.77  0.050 / 0.040
G32     309.1          75.6                9.1 +/-    0.47       9.3 +/-    0.47  0.050 / 0.050