PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/14-04:42:30
G01     220.0          10.8                6.2 +/-    1.77      17.0 +/-    1.77  0.030 / 0.040
G03     263.0          69.6                5.0 +/-    0.64       5.3 +/-    0.64  0.030 / 0.040
G09     301.2          18.0                4.2 +/-    1.62       9.6 +/-    1.62  0.130 / 0.310
G14     94.1           19.3                4.4 +/-    0.87       9.8 +/-    0.87  0.330 / 0.450
G16     133.9          54.1                7.6 +/-    0.55       9.1 +/-    0.55  0.040 / 0.070
G22     202.8          62.6                5.0 +/-    0.65       5.5 +/-    0.65  0.040 / 0.060
G23     313.7          43.3                3.7 +/-    1.24       5.1 +/-    1.24  0.110 / 0.250
G26     78.8           53.4                4.4 +/-    0.82       5.3 +/-    0.82  0.090 / 0.280
G31     49.3           24.0                3.2 +/-    1.31       6.5 +/-    1.31  0.030 / 0.050