PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-08:13:10
G07     326.1          55.4                4.7 +/-    0.42       5.6 +/-    0.42  0.130 / 0.130
G08     105.0          49.8                6.9 +/-    0.65       8.7 +/-    0.65  0.100 / 0.120
G09     183.6          75.6                6.1 +/-    0.46       6.3 +/-    0.46  0.050 / 0.080
G11     148.1          10.4               -2.3 +/-   14.28      -6.5 +/-   14.28  0.050 / 0.070
G16     45.5           9.9                 1.7 +/-    3.32       4.8 +/-    3.32  0.030 / 0.040
G23     153.9          48.2                6.9 +/-    0.82       8.9 +/-    0.82  0.040 / 0.050
G27     61.5           34.8                5.1 +/-    0.83       8.1 +/-    0.83  0.040 / 0.040
G28     233.0          24.4                5.9 +/-    2.29      11.7 +/-    2.29  0.020 / 0.030
G30     296.9          30.3                5.1 +/-    2.48       9.0 +/-    2.48  0.080 / 0.590