PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/17-22:13:00
G08     318.8          13.1                9.6 +/-    1.48      25.0 +/-    1.48  0.070 / 0.100
G10     308.4          55.2                9.6 +/-    1.04      11.4 +/-    1.04  0.060 / 0.080
G14     212.3          17.5               13.6 +/-    1.97      31.9 +/-    1.97  0.030 / 0.040
G15     46.0           27.0                9.9 +/-    1.56      18.5 +/-    1.56  0.030 / 0.050
G20     9.0            64.5               11.4 +/-    0.52      12.5 +/-    0.52  0.090 / 0.250
G21     114.7          69.2               12.8 +/-    0.90      13.6 +/-    0.90  0.110 / 0.400
G24     87.0           28.1               11.0 +/-    0.70      20.0 +/-    0.70  0.090 / 0.140
G27     293.5          36.1               10.7 +/-    1.87      16.7 +/-    1.87  0.080 / 0.150
G32     213.6          40.0               14.9 +/-    0.74      21.7 +/-    0.74  0.110 / 0.330