PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/11-02:57:30
G08     289.4          23.6               10.1 +/-    1.50      20.5 +/-    1.50  0.030 / 0.030
G10     9.5            63.2                9.4 +/-    1.02      10.4 +/-    1.02  0.030 / 0.020
G14     232.4          50.1               11.9 +/-    2.35      15.1 +/-    2.35  0.030 / 0.030
G18     64.6           51.2                8.9 +/-    0.79      11.1 +/-    0.79  0.030 / 0.030
G21     147.0          38.1               11.2 +/-    0.74      16.9 +/-    0.74  0.040 / 0.090
G24     55.5           25.8                8.5 +/-    2.46      16.2 +/-    2.46  0.070 / 0.100
G27     250.4          30.3               11.5 +/-    1.69      19.9 +/-    1.69  0.220 / 0.140
G32     249.5          68.0                9.7 +/-    0.43      10.3 +/-    0.43  0.160 / 0.170