PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-05:43:10
G01     245.4          32.5                8.1 +/-    0.96      13.4 +/-    0.96  0.040 / 0.040
G03     314.8          47.1                2.6 +/-    0.96       3.4 +/-    0.96  0.040 / 0.030
G14     64.6           38.8                3.7 +/-    1.13       5.5 +/-    1.13  0.090 / 0.120
G16     158.0          24.6               -3.2 +/-   17.32      -6.3 +/-   17.32  0.120 / 0.120
G18     216.8          23.3                8.1 +/-    1.13      16.5 +/-    1.13  0.040 / 0.090
G22     296.4          69.8                5.4 +/-    1.13       5.7 +/-    1.13  0.040 / 0.090
G23     290.5          22.4                6.7 +/-    0.99      13.9 +/-    0.99  0.050 / 0.070
G26     128.0          42.8                6.7 +/-    1.13       9.3 +/-    1.13  0.050 / 0.070
G31     40.9           50.8                3.5 +/-    0.42       4.3 +/-    0.42  0.090 / 0.220
G32     82.4           18.1                3.4 +/-    0.84       7.8 +/-    0.84  0.090 / 0.230