PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/18-23:42:40
G08     314.9          15.1                7.7 +/-    2.88      19.2 +/-    2.88  0.100 / 0.220
G10     331.5          60.1                8.5 +/-    0.50       9.7 +/-    0.50  0.110 / 0.220
G14     216.7          27.5               12.0 +/-    1.17      22.2 +/-    1.17  0.060 / 0.090
G15     46.6           12.2                6.6 +/-    2.09      17.5 +/-    2.09  0.070 / 0.090
G20     34.5           60.9                9.0 +/-    0.63      10.1 +/-    0.63  0.030 / 0.040
G21     132.3          59.9               10.1 +/-    0.97      11.5 +/-    0.97  0.030 / 0.050
G24     77.3           30.5               10.0 +/-    0.92      17.4 +/-    0.92  0.030 / 0.050
G27     278.0          37.9               11.4 +/-    1.39      17.2 +/-    1.39  0.030 / 0.070
G32     221.0          50.1               11.9 +/-    1.73      15.0 +/-    1.73  0.170 / 0.360