PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/03-21:58:00
G08     320.7          10.9                0.9 +/-   43.98       2.5 +/-   43.98  0.070 / 0.140
G10     301.6          52.8               15.5 +/-    0.70      18.9 +/-    0.70  0.070 / 0.140
G14     211.1          16.4               19.3 +/-    1.51      46.3 +/-    1.51  0.030 / 0.040
G15     45.7           25.1               15.9 +/-    1.23      30.9 +/-    1.23  0.030 / 0.050
G18     6.8            65.2               16.0 +/-    0.73      17.5 +/-    0.73  0.070 / 0.110
G20     73.9           15.8               16.8 +/-    1.44      41.1 +/-    1.44  0.050 / 0.110
G21     108.8          69.9               17.6 +/-    1.01      18.6 +/-    1.01  0.050 / 0.090
G24     95.2           27.8               19.4 +/-    0.56      35.6 +/-    0.56  0.070 / 0.080
G27     294.8          36.4               17.0 +/-    1.28      26.3 +/-    1.28  0.110 / 0.340
G32     213.0          32.2               17.7 +/-    1.60      29.7 +/-    1.60  0.080 / 0.280