PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/17-04:27:50
G08     270.1          19.2                8.1 +/-    1.29      18.3 +/-    1.29  0.140 / 0.290
G10     56.0           59.4                4.1 +/-    0.98       4.6 +/-    0.98  0.100 / 0.290
G14     258.2          62.2                5.2 +/-    0.91       5.8 +/-    0.91  0.150 / 0.310
G18     313.8          29.2                6.5 +/-    1.88      11.5 +/-    1.88  0.180 / 0.300
G20     82.1           52.1                7.0 +/-    0.35       8.7 +/-    0.35  0.100 / 0.350
G21     154.5          18.9                7.4 +/-    1.52      16.7 +/-    1.52  0.090 / 0.320
G24     40.3           11.0                5.0 +/-    2.59      13.5 +/-    2.59  0.050 / 0.050
G27     234.0          17.8                9.1 +/-    2.35      21.0 +/-    2.35  0.050 / 0.060
G31     177.2          29.3                8.9 +/-    0.97      15.8 +/-    0.97  0.120 / 0.220
G32     336.4          75.1                5.4 +/-    0.55       5.5 +/-    0.55  0.120 / 0.190