PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-13:13:10
G03     243.5          69.6                6.1 +/-    0.42       6.5 +/-    0.42  0.080 / 0.330
G09     301.5          15.7                3.9 +/-    1.47       9.4 +/-    1.47  0.080 / 0.190
G14     95.5           20.4                6.2 +/-    1.39      13.5 +/-    1.39  0.050 / 0.050
G16     128.9          57.1                7.8 +/-    0.57       9.1 +/-    0.57  0.050 / 0.050
G22     191.2          55.8                6.9 +/-    1.50       8.2 +/-    1.50  0.050 / 0.050
G23     320.4          50.6                5.2 +/-    1.27       6.6 +/-    1.27  0.050 / 0.050
G26     71.7           51.6                5.3 +/-    0.57       6.5 +/-    0.57  0.030 / 0.050
G31     51.3           20.1                4.1 +/-    1.73       9.1 +/-    1.73  0.030 / 0.050