PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/25-22:43:10
G10     307.0          55.3                9.3 +/-    0.83      11.0 +/-    0.83  0.040 / 0.050
G14     211.4          14.6               11.3 +/-    4.56      28.4 +/-    4.56  0.040 / 0.050
G15     45.7           24.2                6.9 +/-    0.75      13.8 +/-    0.75  0.160 / 0.690
G20     5.5            64.6                9.0 +/-    0.61       9.8 +/-    0.61  0.180 / 0.520
G21     108.8          71.6                9.0 +/-    0.73       9.4 +/-    0.73  0.130 / 0.100
G24     93.5           28.4                9.6 +/-    1.20      17.4 +/-    1.20  0.100 / 0.080
G27     295.5          36.1               11.1 +/-    1.15      17.2 +/-    1.15  0.060 / 0.130
G32     212.3          36.7               12.3 +/-    1.93      19.0 +/-    1.93  0.070 / 0.150