PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-05:27:40
G03     223.6          63.0                8.6 +/-    0.73       9.6 +/-    0.73  0.220 / 0.330
G07     253.5          12.8                6.5 +/-    2.89      17.0 +/-    2.89  0.120 / 0.360
G09     309.6          28.9                4.9 +/-    1.96       8.7 +/-    1.96  0.050 / 0.070
G16     104.6          63.0                7.3 +/-    1.02       8.1 +/-    1.02  0.040 / 0.060
G22     191.7          47.4                7.8 +/-    1.87      10.2 +/-    1.87  0.030 / 0.050
G23     325.1          55.0                6.5 +/-    1.12       7.7 +/-    1.12  0.040 / 0.060
G26     57.7           46.0                5.4 +/-    0.57       7.1 +/-    0.57  0.030 / 0.040
G31     56.8           13.0                2.5 +/-    0.76       6.6 +/-    0.76  0.030 / 0.040