PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-08:58:00
G01     316.1          24.6                3.0 +/-    1.48       5.9 +/-    1.48  0.090 / 0.150
G10     90.7           47.7                6.0 +/-    0.84       7.8 +/-    0.84  0.100 / 0.170
G11     295.5          26.0                6.3 +/-    1.65      12.0 +/-    1.65  0.090 / 0.180
G14     321.8          71.4                4.7 +/-    0.58       5.0 +/-    0.58  0.090 / 0.110
G18     295.4          46.5                4.9 +/-    6.75       6.5 +/-    6.75  0.040 / 0.040
G20     111.4          23.7                5.5 +/-    1.67      11.1 +/-    1.67  0.040 / 0.040
G22     305.4          18.6                3.5 +/-    0.96       7.9 +/-    0.96  0.040 / 0.050
G25     94.8           11.3                0.0 +/-   23.16       0.0 +/-   23.16  0.050 / 0.050
G31     173.9          49.8                6.1 +/-    0.82       7.7 +/-    0.82  0.110 / 0.200
G32     11.8           65.1                4.6 +/-    0.85       5.0 +/-    0.85  0.130 / 0.210