PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/17-04:57:50
G01     295.4          38.9                5.1 +/-    0.87       7.6 +/-    0.87  0.070 / 0.100
G03     310.0          11.7                3.3 +/-   18.21       8.8 +/-   18.21  0.070 / 0.090
G10     116.2          32.9                5.7 +/-    0.74       9.5 +/-    0.74  0.050 / 0.090
G11     266.9          28.3                2.4 +/-   30.73       4.4 +/-   30.73  0.050 / 0.080
G14     21.0           60.0                4.1 +/-    0.59       4.7 +/-    0.59  0.080 / 0.110
G22     312.9          35.2                5.4 +/-    1.42       8.6 +/-    1.42  0.070 / 0.110
G25     66.6           17.4                3.0 +/-    0.66       7.1 +/-    0.66  0.060 / 0.140
G31     149.9          75.9                6.5 +/-    1.15       6.6 +/-    1.15  0.060 / 0.120
G32     45.8           46.0                1.8 +/-    5.19       2.4 +/-    5.19  0.050 / 0.050