PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-05:13:10
G01     319.2          17.6                8.4 +/-    2.17      19.6 +/-    2.17  0.170 / 0.290
G08     257.8          13.3                7.1 +/-    2.30      18.3 +/-    2.30  0.100 / 0.220
G10     79.4           53.3                6.9 +/-    0.92       8.4 +/-    0.92  0.180 / 0.260
G11     303.3          23.0                6.9 +/-    1.17      14.0 +/-    1.17  0.190 / 0.240
G14     289.5          69.0                6.8 +/-    0.40       7.2 +/-    0.40  0.030 / 0.050
G18     305.1          39.9                5.7 +/-    1.18       8.3 +/-    1.18  0.030 / 0.050
G20     100.0          41.1               13.0 +/-    1.08      18.6 +/-    1.08  0.080 / 0.230
G22     300.8          11.2                1.9 +/-    6.19       5.2 +/-    6.19  0.110 / 0.180
G31     174.0          43.6                9.1 +/-    1.17      12.5 +/-    1.17  0.130 / 0.330
G32     11.2           66.5                6.2 +/-    0.57       6.7 +/-    0.57  0.120 / 0.280