PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-00:58:10
G01     318.9          19.4                7.6 +/-    1.04      17.0 +/-    1.04  0.130 / 0.210
G08     261.4          13.6                9.8 +/-    2.43      25.2 +/-    2.43  0.120 / 0.260
G10     80.5           51.6                7.8 +/-    0.60       9.6 +/-    0.60  0.040 / 0.070
G11     304.2          21.9                6.3 +/-    2.68      13.2 +/-    2.68  0.040 / 0.060
G14     290.6          69.8                7.0 +/-    0.56       7.5 +/-    0.56  0.180 / 0.240
G18     304.7          40.9                7.0 +/-    0.83      10.0 +/-    0.83  0.220 / 0.300
G20     105.7          28.6                7.0 +/-    1.23      12.6 +/-    1.23  0.090 / 0.190
G31     174.4          42.9                8.8 +/-    0.80      12.3 +/-    0.80  0.100 / 0.280
G32     7.0            67.8                6.0 +/-    0.95       6.5 +/-    0.95  0.070 / 0.090