PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/17-00:28:00
G08     289.0          23.5               12.1 +/-    1.18      24.4 +/-    1.18  0.040 / 0.110
G10     11.1           63.2               10.6 +/-    0.35      11.8 +/-    0.35  0.040 / 0.110
G14     233.0          50.4               13.8 +/-    1.73      17.3 +/-    1.73  0.060 / 0.100
G18     66.5           50.0               13.4 +/-    1.68      16.9 +/-    1.68  0.060 / 0.100
G21     147.1          36.4               13.2 +/-    0.92      20.5 +/-    0.92  0.040 / 0.030
G24     54.9           25.5               12.9 +/-    0.46      24.9 +/-    0.46  0.040 / 0.030
G27     249.8          30.0               14.2 +/-    1.30      25.0 +/-    1.30  0.100 / 0.150
G32     249.3          67.0               12.7 +/-    0.73      13.6 +/-    0.73  0.110 / 0.110