PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/11-04:42:30
G01     312.2          28.6                4.0 +/-    1.33       7.3 +/-    1.33  0.030 / 0.030
G10     97.7           46.0                6.4 +/-    0.61       8.5 +/-    0.61  0.050 / 0.020
G11     287.4          29.2                4.8 +/-    1.27       8.6 +/-    1.27  0.050 / 0.040
G14     344.6          69.4                4.5 +/-    0.62       4.7 +/-    0.62  0.050 / 0.050
G18     112.0          20.8                4.3 +/-    0.72       9.4 +/-    0.72  0.180 / 0.300
G22     306.8          20.8                6.5 +/-    1.54      14.0 +/-    1.54  0.170 / 0.190
G25     84.3           13.8                5.9 +/-    2.35      15.2 +/-    2.35  0.110 / 0.120
G31     172.2          56.8                6.8 +/-    0.45       8.0 +/-    0.45  0.100 / 0.110
G32     26.1           58.6                4.8 +/-    0.55       5.5 +/-    0.55  0.030 / 0.050