PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/25-09:27:30
G07     330.9          57.2                0.3 +/-    5.77       0.3 +/-    5.77  0.070 / 0.130
G08     97.9           50.8                2.8 +/-   34.38       3.4 +/-   34.38  0.080 / 0.110
G09     184.7          73.0               -0.7 +/-   11.08      -0.7 +/-   11.08  0.030 / 0.060
G11     145.5          12.8                3.1 +/-   32.47       8.1 +/-   32.47  0.030 / 0.050
G23     155.5          44.4                6.1 +/-   35.15       8.3 +/-   35.15  0.060 / 0.080
G27     57.0           32.8                2.0 +/-   34.26       3.3 +/-   34.26  0.060 / 0.070
G28     235.8          27.9                5.8 +/-    7.35      10.6 +/-    7.35  0.040 / 0.080
G30     299.7          32.4                0.7 +/-   10.29       1.2 +/-   10.29  0.040 / 0.100