PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/16-02:27:50
G01     242.1          32.1                8.5 +/-    1.78      14.2 +/-    1.78  0.040 / 0.040
G03     314.8          48.8                4.9 +/-    1.66       6.3 +/-    1.66  0.040 / 0.040
G14     64.3           39.2                5.1 +/-    0.89       7.5 +/-    0.89  0.090 / 0.250
G16     158.5          24.3                6.9 +/-    1.83      13.7 +/-    1.83  0.110 / 0.250
G18     215.6          22.2                7.1 +/-    2.37      14.8 +/-    2.37  0.050 / 0.080
G22     295.5          69.5                7.4 +/-    1.27       7.9 +/-    1.27  0.050 / 0.100
G23     292.1          24.8                7.0 +/-    1.25      13.7 +/-    1.25  0.070 / 0.200
G26     129.6          43.0                7.9 +/-    1.15      10.9 +/-    1.15  0.070 / 0.160
G31     41.3           50.6                4.4 +/-    0.58       5.5 +/-    0.58  0.080 / 0.230
G32     82.1           18.8                5.3 +/-    0.96      12.0 +/-    0.96  0.080 / 0.250