PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-16:27:30
G03     234.3          69.4               11.3 +/-    0.87      12.0 +/-    0.87  0.030 / 0.050
G09     301.9          16.1                7.1 +/-    2.83      17.2 +/-    2.83  0.030 / 0.050
G14     98.2           14.8                9.1 +/-    1.35      22.9 +/-    1.35  0.090 / 0.350
G16     140.2          55.2               12.3 +/-    1.10      14.6 +/-    1.10  0.090 / 0.320
G22     192.3          55.1               12.5 +/-    1.76      14.8 +/-    1.76  0.070 / 0.090
G23     316.9          46.6                9.0 +/-    1.41      11.8 +/-    1.41  0.050 / 0.080
G26     78.3           55.3                9.1 +/-    0.53      10.8 +/-    0.53  0.060 / 0.060
G31     50.7           23.0                7.6 +/-    1.27      15.5 +/-    1.27  0.060 / 0.050