PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/19-22:43:10
G08     304.8          21.3                8.0 +/-    1.37      17.1 +/-    1.37  0.030 / 0.040
G10     340.8          61.2                6.7 +/-    0.66       7.5 +/-    0.66  0.040 / 0.050
G14     220.4          34.0               10.9 +/-    1.27      17.6 +/-    1.27  0.180 / 0.140
G15     47.6           11.7                6.2 +/-    2.55      16.7 +/-    2.55  0.100 / 0.130
G20     45.2           58.7                8.9 +/-    0.70      10.2 +/-    0.70  0.070 / 0.080
G21     138.2          53.0                9.4 +/-    0.60      11.5 +/-    0.60  0.110 / 0.060
G24     66.6           28.2                6.0 +/-    0.81      10.9 +/-    0.81  0.060 / 0.080
G27     270.8          36.4                9.7 +/-    1.43      15.0 +/-    1.43  0.050 / 0.080
G32     227.3          57.5               10.1 +/-    2.47      11.7 +/-    2.47  0.120 / 0.260