PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-04:27:50
G01     252.4          36.0                7.4 +/-    0.96      11.6 +/-    0.96  0.030 / 0.040
G03     316.1          40.1                8.0 +/-    0.83      11.6 +/-    0.83  0.050 / 0.050
G11     236.4          13.6                9.0 +/-    1.94      23.3 +/-    1.94  0.070 / 0.090
G14     60.2           40.2                6.6 +/-    0.38       9.6 +/-    0.38  0.060 / 0.110
G16     165.7          15.7                9.5 +/-    2.88      23.2 +/-    2.88  0.060 / 0.120
G22     306.8          64.5                7.3 +/-    1.39       8.0 +/-    1.39  0.060 / 0.120
G23     284.9          17.1                7.3 +/-    2.41      17.3 +/-    2.41  0.030 / 0.040
G26     140.9          35.7               10.6 +/-    0.53      16.7 +/-    0.53  0.030 / 0.040
G31     40.6           62.1                6.9 +/-    0.54       7.7 +/-    0.54  0.060 / 0.090
G32     75.0           25.9                7.8 +/-    1.53      14.9 +/-    1.53  0.060 / 0.090