PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-03:28:10
G01     245.2          32.4                7.2 +/-    1.30      12.0 +/-    1.30  0.040 / 0.030
G03     314.7          47.7                4.0 +/-    0.52       5.2 +/-    0.52  0.040 / 0.040
G14     65.1           38.3                4.4 +/-    1.08       6.5 +/-    1.08  0.050 / 0.080
G16     158.8          24.2               -2.3 +/-   14.97      -4.6 +/-   14.97  0.050 / 0.090
G18     216.0          22.8                7.7 +/-    1.09      15.8 +/-    1.09  0.100 / 0.110
G22     296.1          69.9                6.3 +/-    0.76       6.6 +/-    0.76  0.080 / 0.130
G23     290.4          22.0                5.8 +/-    1.82      12.1 +/-    1.82  0.040 / 0.090
G26     129.7          42.6                7.1 +/-    0.97       9.9 +/-    0.97  0.050 / 0.100
G31     40.7           52.3                4.0 +/-    0.32       4.9 +/-    0.32  0.080 / 0.230
G32     82.2           18.6                4.1 +/-    0.71       9.3 +/-    0.71  0.080 / 0.240