PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-17:58:00
G10     265.4          36.6               11.3 +/-    0.92      17.4 +/-    0.92  0.150 / 0.160
G13     43.1           20.5               10.0 +/-    2.99      21.7 +/-    2.99  0.100 / 0.170
G15     59.8           48.7               10.6 +/-    1.03      13.5 +/-    1.03  0.060 / 0.070
G16     286.1          11.3                9.1 +/-    3.05      24.6 +/-    3.05  0.060 / 0.070
G18     300.7          64.8                9.6 +/-    0.63      10.5 +/-    0.63  0.200 / 0.280
G20     52.8           37.2                9.1 +/-    0.96      13.9 +/-    0.96  0.130 / 0.320
G24     122.6          13.2               15.3 +/-    2.59      39.8 +/-    2.59  0.250 / 0.440
G27     318.5          19.1                7.8 +/-    1.44      17.5 +/-    1.44  0.260 / 0.290
G29     165.4          27.1               13.0 +/-    1.73      24.2 +/-    1.73  0.220 / 0.370