PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/07-04:27:50
G01     234.4          24.5                6.6 +/-    1.79      13.1 +/-    1.79  0.030 / 0.030
G03     306.8          58.7                6.4 +/-    1.10       7.4 +/-    1.10  0.030 / 0.030
G14     76.5           31.4                4.9 +/-    1.63       8.4 +/-    1.63  0.090 / 0.140
G16     152.2          35.6                7.9 +/-    1.32      12.4 +/-    1.32  0.090 / 0.120
G18     208.8          14.0                7.8 +/-    1.76      20.0 +/-    1.76  0.090 / 0.110
G22     256.0          75.3                6.7 +/-    0.67       6.9 +/-    0.67  0.100 / 0.110
G23     299.3          29.7                6.8 +/-    1.68      11.9 +/-    1.68  0.070 / 0.090
G26     113.7          50.4                8.3 +/-    0.73      10.4 +/-    0.73  0.090 / 0.110
G31     42.3           40.7                3.8 +/-    1.03       5.5 +/-    1.03  0.260 / 0.230
G32     91.7           11.3                5.6 +/-    1.58      15.3 +/-    1.58  0.150 / 0.250