PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/11-16:42:50
G08     312.5          18.0                5.7 +/-    1.36      13.2 +/-    1.36  0.030 / 0.030
G10     323.0          58.5                7.9 +/-    0.74       9.1 +/-    0.74  0.030 / 0.030
G14     215.2          26.3               10.8 +/-    1.89      20.4 +/-    1.89  0.070 / 0.080
G15     46.1           16.1                6.0 +/-    2.92      14.4 +/-    2.92  0.060 / 0.080
G20     27.3           62.3               10.0 +/-    0.98      11.2 +/-    0.98  0.060 / 0.070
G21     128.7          59.0                9.9 +/-    0.76      11.3 +/-    0.76  0.080 / 0.080
G24     75.4           28.3                6.8 +/-    0.83      12.4 +/-    0.83  0.190 / 0.160
G27     284.8          36.8                9.1 +/-    1.31      14.0 +/-    1.31  0.110 / 0.320
G32     218.8          46.2                9.8 +/-    1.56      13.0 +/-    1.56  0.040 / 0.040