PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-04:27:50
G01     226.4          18.8                5.6 +/-    1.49      12.8 +/-    1.49  0.220 / 0.450
G03     294.6          65.9                4.7 +/-    0.39       5.0 +/-    0.39  0.210 / 0.300
G14     83.0           27.4                4.2 +/-    1.58       7.8 +/-    1.58  0.090 / 0.200
G16     147.0          42.4                6.0 +/-    0.61       8.4 +/-    0.61  0.090 / 0.140
G22     228.5          72.4                5.0 +/-    0.64       5.2 +/-    0.64  0.050 / 0.080
G23     306.9          37.9                3.6 +/-    1.82       5.5 +/-    1.82  0.050 / 0.080
G26     101.6          53.4                4.9 +/-    1.42       6.0 +/-    1.42  0.040 / 0.050
G31     45.0           32.8                3.1 +/-    1.35       5.1 +/-    1.35  0.040 / 0.040