PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-02:27:50
G01     246.9          33.4                6.0 +/-    1.42       9.8 +/-    1.42  0.030 / 0.040
G03     315.3          46.1                2.5 +/-    1.08       3.3 +/-    1.08  0.040 / 0.040
G14     63.6           39.0                4.4 +/-    0.62       6.5 +/-    0.62  0.040 / 0.110
G16     159.9          22.5              -10.1 +/-    7.39     -20.9 +/-    7.39  0.050 / 0.100
G18     216.8          24.0                8.0 +/-    1.02      15.9 +/-    1.02  0.070 / 0.120
G22     299.4          68.4                4.4 +/-    0.92       4.7 +/-    0.92  0.080 / 0.110
G23     289.0          20.7                4.3 +/-    1.32       9.4 +/-    1.32  0.070 / 0.250
G26     131.9          41.3                7.2 +/-    0.57      10.3 +/-    0.57  0.110 / 0.270
G31     40.7           54.5                3.3 +/-    0.75       4.0 +/-    0.75  0.110 / 0.260
G32     80.8           19.8                3.6 +/-    0.79       8.1 +/-    0.79  0.110 / 0.200