PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/17-23:12:50
G08     272.3          18.9               10.5 +/-    0.98      23.8 +/-    0.98  0.140 / 0.250
G10     59.5           57.7                9.9 +/-    0.32      11.5 +/-    0.32  0.120 / 0.250
G14     258.4          62.8               10.4 +/-    0.72      11.6 +/-    0.72  0.060 / 0.060
G18     313.6          30.6                9.1 +/-    0.94      15.8 +/-    0.94  0.060 / 0.050
G20     94.1           37.0               10.3 +/-    0.83      15.8 +/-    0.83  0.080 / 0.130
G21     155.0          18.3               11.8 +/-    1.83      27.0 +/-    1.83  0.100 / 0.140
G24     41.3           12.3                6.8 +/-    2.83      18.0 +/-    2.83  0.030 / 0.030
G27     233.5          17.8               11.2 +/-    2.90      26.0 +/-    2.90  0.020 / 0.030
G31     177.6          29.1               11.3 +/-    1.12      20.2 +/-    1.12  0.120 / 0.290
G32     332.7          75.3                9.2 +/-    0.42       9.5 +/-    0.42  0.110 / 0.140