PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/22-02:28:00
G01     319.5          16.8                4.2 +/-    1.57       9.9 +/-    1.57  0.040 / 0.060
G08     257.0          13.9                8.1 +/-    1.58      20.6 +/-    1.58  0.040 / 0.060
G10     77.8           53.7                7.7 +/-    0.71       9.3 +/-    0.71  0.110 / 0.220
G11     303.5          23.1                4.2 +/-    3.43       8.7 +/-    3.43  0.120 / 0.190
G14     290.1          69.8                6.5 +/-    0.94       6.9 +/-    0.94  0.040 / 0.040
G18     305.7          39.6                6.5 +/-    1.21       9.6 +/-    1.21  0.040 / 0.040
G20     78.3           63.2               28.8 +/-    0.83      31.9 +/-    0.83  0.090 / 0.250
G31     174.3          42.4               10.6 +/-    0.67      14.8 +/-    0.67  0.070 / 0.210
G32     9.3            67.3                5.3 +/-    1.40       5.7 +/-    1.40  0.070 / 0.090