PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-04:43:10
G08     272.3          19.9                7.7 +/-    1.47      17.1 +/-    1.47  0.080 / 0.160
G10     52.0           60.1                6.2 +/-    0.41       7.1 +/-    0.41  0.080 / 0.240
G14     254.5          60.6               10.2 +/-    0.71      11.6 +/-    0.71  0.050 / 0.070
G18     314.6          27.4                6.1 +/-    3.14      11.3 +/-    3.14  0.050 / 0.070
G20     81.9           50.7               12.7 +/-    0.40      15.9 +/-    0.40  0.030 / 0.040
G21     154.0          20.8                8.5 +/-    1.73      18.3 +/-    1.73  0.030 / 0.030
G24     41.3           12.5                5.0 +/-    1.83      13.1 +/-    1.83  0.090 / 0.210
G27     235.5          19.1                9.8 +/-    1.15      22.1 +/-    1.15  0.090 / 0.210
G31     177.7          27.2                8.7 +/-    1.83      16.2 +/-    1.83  0.100 / 0.130
G32     328.4          75.9                8.7 +/-    0.62       8.9 +/-    0.62  0.140 / 0.140