PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/16-04:58:10
G01     319.5          16.6                6.1 +/-    3.12      14.6 +/-    3.12  0.040 / 0.060
G08     258.8          13.9               10.2 +/-    1.92      26.1 +/-    1.92  0.050 / 0.060
G10     77.5           53.9                6.4 +/-    0.22       7.7 +/-    0.22  0.050 / 0.050
G11     304.3          22.5                5.0 +/-    1.21      10.4 +/-    1.21  0.060 / 0.040
G14     286.3          68.7                7.7 +/-    0.46       8.2 +/-    0.46  0.150 / 0.340
G18     306.1          39.1                7.1 +/-    0.96      10.4 +/-    0.96  0.130 / 0.260
G20     97.8           43.6                9.8 +/-    0.77      13.5 +/-    0.77  0.070 / 0.230
G31     174.3          42.3                9.8 +/-    1.02      13.7 +/-    1.02  0.070 / 0.270
G32     9.0            67.4                6.7 +/-    1.04       7.2 +/-    1.04  0.180 / 0.280