PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/18-22:58:10
G10     263.2          36.0                7.5 +/-    1.88      11.8 +/-    1.88  0.140 / 0.390
G13     43.7           20.8                6.4 +/-    1.78      13.9 +/-    1.78  0.150 / 0.320
G15     66.9           54.4                7.9 +/-    0.47       9.5 +/-    0.47  0.060 / 0.060
G16     280.7          13.5                7.8 +/-    1.16      20.2 +/-    1.16  0.050 / 0.050
G20     265.4          28.8                5.7 +/-    1.44      10.2 +/-    1.44  0.130 / 0.370
G21     352.0          68.9                7.6 +/-    1.52       8.1 +/-    1.52  0.140 / 0.350
G24     121.7          12.3                8.3 +/-    1.59      22.1 +/-    1.59  0.080 / 0.300
G27     320.2          15.7                6.8 +/-    2.42      16.7 +/-    2.42  0.070 / 0.270
G29     167.9          36.2                7.2 +/-    1.43      11.2 +/-    1.43  0.100 / 0.350