PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/11-07:12:40
G01     235.2          25.3                5.7 +/-    2.58      11.1 +/-    2.58  0.080 / 0.180
G03     308.5          56.2                2.8 +/-    0.58       3.3 +/-    0.58  0.070 / 0.170
G14     77.0           29.8                3.0 +/-    1.46       5.3 +/-    1.46  0.070 / 0.130
G16     156.5          32.7                6.0 +/-    0.80       9.9 +/-    0.80  0.060 / 0.150
G22     258.6          76.1                3.5 +/-    0.68       3.6 +/-    0.68  0.030 / 0.040
G23     297.7          27.9                2.0 +/-    1.42       3.7 +/-    1.42  0.030 / 0.030
G26     120.6          49.3                4.9 +/-    0.83       6.2 +/-    0.83  0.070 / 0.120
G31     41.1           43.6                1.8 +/-    0.88       2.5 +/-    0.88  0.060 / 0.110
G32     89.8           14.4                2.5 +/-    0.94       6.3 +/-    0.94  0.080 / 0.140