PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/11-17:43:00
G08     286.1          23.8                9.0 +/-    1.30      18.1 +/-    1.30  0.050 / 0.130
G10     19.7           62.8                8.8 +/-    0.42       9.7 +/-    0.42  0.060 / 0.130
G14     234.5          51.4               13.4 +/-    2.85      16.6 +/-    2.85  0.040 / 0.040
G18     317.4          16.8                8.8 +/-    3.08      21.0 +/-    3.08  0.040 / 0.030
G20     72.2           49.4                9.9 +/-    0.89      12.6 +/-    0.89  0.080 / 0.070
G21     148.3          32.5               13.2 +/-    1.91      21.9 +/-    1.91  0.080 / 0.070
G24     48.8           19.9                8.1 +/-    1.74      17.9 +/-    1.74  0.090 / 0.180
G27     252.0          29.3                9.5 +/-    1.69      16.9 +/-    1.69  0.090 / 0.130
G32     256.1          70.7               10.7 +/-    0.77      11.3 +/-    0.77  0.070 / 0.150