PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/18-02:57:30
G08     309.2          19.2                9.2 +/-    1.03      20.8 +/-    1.03  0.070 / 0.090
G10     333.0          60.2                9.4 +/-    0.45      10.7 +/-    0.45  0.060 / 0.080
G14     218.5          28.9               15.3 +/-    2.35      27.4 +/-    2.35  0.090 / 0.180
G15     47.0           12.2                6.6 +/-    2.86      17.4 +/-    2.86  0.110 / 0.190
G20     2.8            65.1               12.3 +/-    0.73      13.4 +/-    0.73  0.030 / 0.050
G21     134.8          57.6               12.6 +/-    1.15      14.6 +/-    1.15  0.030 / 0.040
G24     72.2           29.4                8.7 +/-    0.60      15.5 +/-    0.60  0.030 / 0.040
G27     274.3          37.3               13.4 +/-    1.15      20.4 +/-    1.15  0.030 / 0.030
G32     223.7          54.7               13.8 +/-    1.45      16.5 +/-    1.45  0.060 / 0.080