PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-20:42:40
G08     286.0          23.0                8.5 +/-    1.40      17.4 +/-    1.40  0.090 / 0.120
G10     19.8           63.2                8.4 +/-    0.50       9.3 +/-    0.50  0.090 / 0.120
G14     236.7          52.8               11.1 +/-    1.72      13.6 +/-    1.72  0.050 / 0.150
G18     72.3           46.8                8.3 +/-    0.79      10.9 +/-    0.79  0.060 / 0.130
G21     148.3          30.2               11.6 +/-    0.94      20.2 +/-    0.94  0.100 / 0.110
G24     51.6           23.5                8.2 +/-    0.85      16.6 +/-    0.85  0.090 / 0.130
G27     246.3          27.8               10.1 +/-    1.31      18.5 +/-    1.31  0.030 / 0.030
G32     258.9          70.5               10.1 +/-    0.58      10.6 +/-    0.58  0.030 / 0.030