PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/08-21:27:50
G10     295.3          50.7               15.1 +/-    1.32      18.9 +/-    1.32  0.050 / 0.150
G14     209.9          12.4               23.1 +/-    3.82      61.2 +/-    3.82  0.130 / 0.140
G15     46.2           28.8               12.5 +/-    0.61      22.5 +/-    0.61  0.070 / 0.150
G18     357.4          66.2               14.9 +/-    0.94      16.1 +/-    0.94  0.080 / 0.180
G20     70.8           18.7               13.9 +/-    0.88      31.6 +/-    0.88  0.040 / 0.050
G21     97.9           72.6               17.3 +/-    0.81      18.0 +/-    0.81  0.030 / 0.050
G24     99.9           26.2               18.4 +/-    0.51      35.0 +/-    0.51  0.060 / 0.080
G27     299.7          34.8               15.5 +/-    0.70      24.7 +/-    0.70  0.060 / 0.100
G32     211.2          28.1               20.6 +/-    1.33      37.5 +/-    1.33  0.130 / 0.610