PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/20-03:27:50
G01     305.8          34.2                6.1 +/-    1.11       9.8 +/-    1.11  0.060 / 0.130
G10     107.7          38.6                9.3 +/-    0.55      13.8 +/-    0.55  0.080 / 0.140
G11     278.9          28.4                7.4 +/-    0.89      13.5 +/-    0.89  0.060 / 0.100
G14     357.8          66.6                7.4 +/-    0.57       8.0 +/-    0.57  0.050 / 0.110
G18     274.2          50.1                8.5 +/-    0.97      10.7 +/-    0.97  0.040 / 0.050
G20     114.1          45.8               16.0 +/-    1.32      21.3 +/-    1.32  0.050 / 0.060
G22     310.1          26.2                6.2 +/-    1.21      11.9 +/-    1.21  0.060 / 0.180
G25     79.7           16.7                5.9 +/-    1.12      14.2 +/-    1.12  0.090 / 0.180
G31     159.5          68.3                8.9 +/-    0.91       9.5 +/-    0.91  0.090 / 0.280
G32     39.8           49.8                6.9 +/-    0.66       8.7 +/-    0.66  0.120 / 0.300