PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-11:12:50
G01     246.8          34.1                6.1 +/-    1.25       9.9 +/-    1.25  0.040 / 0.030
G03     315.3          51.0                4.5 +/-    0.85       5.6 +/-    0.85  0.040 / 0.030
G14     63.3           38.7                4.6 +/-    1.46       6.8 +/-    1.46  0.100 / 0.120
G16     163.4          19.1               -1.8 +/-   12.49      -4.0 +/-   12.49  0.090 / 0.100
G18     216.8          24.4                4.6 +/-    2.09       9.1 +/-    2.09  0.050 / 0.070
G22     295.9          72.1                4.4 +/-    0.27       4.6 +/-    0.27  0.050 / 0.050
G23     289.2          22.1                3.3 +/-    2.99       6.9 +/-    2.99  0.050 / 0.080
G26     136.1          39.8                6.8 +/-    0.99      10.0 +/-    0.99  0.060 / 0.080
G31     41.0           55.6                4.2 +/-    0.82       5.0 +/-    0.82  0.090 / 0.200
G32     77.6           24.6                5.6 +/-    1.35      11.0 +/-    1.35  0.090 / 0.190