PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-22:27:40
G10     301.6          53.2                7.2 +/-    1.06       8.7 +/-    1.06  0.110 / 0.080
G14     211.0          13.4               11.9 +/-    3.63      30.7 +/-    3.63  0.110 / 0.070
G15     46.5           31.2                6.0 +/-    0.99      10.3 +/-    0.99  0.140 / 0.560
G20     358.8          65.2                7.2 +/-    0.50       7.9 +/-    0.50  0.280 / 0.560
G21     104.1          72.5                7.9 +/-    0.77       8.2 +/-    0.77  0.070 / 0.160
G24     92.0           27.1                7.7 +/-    1.40      14.4 +/-    1.40  0.080 / 0.110
G27     298.4          34.7                8.0 +/-    2.86      12.7 +/-    2.86  0.070 / 0.030
G32     211.5          35.8               10.9 +/-    1.78      17.0 +/-    1.78  0.060 / 0.030