PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-07:12:30
G08     298.6          21.5                4.6 +/-    1.47       9.7 +/-    1.47  0.060 / 0.130
G10     0.8            62.8                3.5 +/-    0.66       3.9 +/-    0.66  0.050 / 0.120
G14     227.2          39.2                6.1 +/-    3.19       9.0 +/-    3.19  0.060 / 0.090
G20     75.9           39.9                4.8 +/-    0.37       7.0 +/-    0.37  0.080 / 0.100
G21     145.1          43.7                7.6 +/-    0.97      10.5 +/-    0.97  0.040 / 0.090
G24     58.5           26.5                3.5 +/-    1.38       6.5 +/-    1.38  0.050 / 0.070
G27     257.1          33.0                5.4 +/-    1.93       8.9 +/-    1.93  0.030 / 0.030
G32     242.0          67.3                7.4 +/-    0.85       8.0 +/-    0.85  0.030 / 0.040