PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/18-02:58:00
G01     254.6          37.0                6.8 +/-    1.59      10.5 +/-    1.59  0.060 / 0.100
G03     316.4          39.6                4.1 +/-    1.74       6.0 +/-    1.74  0.050 / 0.090
G11     238.7          13.5                6.5 +/-    2.88      16.8 +/-    2.88  0.040 / 0.060
G14     56.4           43.3                4.5 +/-    0.94       6.3 +/-    0.94  0.050 / 0.080
G18     221.9          29.4                7.4 +/-    1.50      13.1 +/-    1.50  0.040 / 0.040
G22     308.1          62.6                3.9 +/-    0.66       4.4 +/-    0.66  0.040 / 0.040
G25     40.6           10.2                2.8 +/-    3.15       7.7 +/-    3.15  0.140 / 0.430
G26     137.9          35.9                7.4 +/-    1.07      11.6 +/-    1.07  0.120 / 0.550
G31     42.2           60.9                4.6 +/-    0.45       5.1 +/-    0.45  0.090 / 0.320
G32     75.3           23.8                5.5 +/-    2.37      11.0 +/-    2.37  0.090 / 0.340