PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/06-13:27:40
G01     223.6          14.2                7.5 +/-   14.95      19.0 +/-   14.95  0.120 / 0.220
G03     270.7          70.6                7.8 +/-    0.48       8.2 +/-    0.48  0.110 / 0.240
G14     88.4           25.4                7.4 +/-    0.81      14.3 +/-    0.81  0.280 / 0.530
G16     140.7          49.8                9.8 +/-    0.86      12.4 +/-    0.86  0.250 / 0.410
G22     197.0          64.3                7.9 +/-    0.51       8.6 +/-    0.51  0.070 / 0.080
G23     313.8          44.6                5.8 +/-    0.94       7.9 +/-    0.94  0.050 / 0.070
G26     86.5           53.7                7.8 +/-    0.58       9.5 +/-    0.58  0.050 / 0.060
G31     47.4           26.8                6.4 +/-    0.77      12.1 +/-    0.77  0.050 / 0.060