PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/27-21:57:50
G08     310.0          19.2                9.5 +/-    1.59      21.2 +/-    1.59  0.070 / 0.070
G10     329.1          59.6                7.3 +/-    0.70       8.3 +/-    0.70  0.060 / 0.080
G14     217.1          28.6               12.9 +/-    1.70      23.3 +/-    1.70  0.110 / 0.200
G15     46.5           16.3                6.6 +/-    1.83      15.9 +/-    1.83  0.090 / 0.200
G20     34.1           61.1                9.8 +/-    0.63      11.0 +/-    0.63  0.040 / 0.080
G21     132.4          58.5               12.0 +/-    0.92      13.8 +/-    0.92  0.040 / 0.070
G24     73.2           28.9                9.6 +/-    0.83      17.2 +/-    0.83  0.150 / 0.240
G27     278.7          37.2               10.5 +/-    1.82      16.1 +/-    1.82  0.160 / 0.280
G32     221.5          51.5               11.6 +/-    1.71      14.3 +/-    1.71  0.060 / 0.110