PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/23-00:42:40
G08     302.8          22.0                8.2 +/-    2.83      17.2 +/-    2.83  0.040 / 0.050
G10     344.4          61.6                8.3 +/-    0.95       9.3 +/-    0.95  0.030 / 0.050
G14     221.6          35.5               14.5 +/-    2.14      22.8 +/-    2.14  0.040 / 0.070
G20     327.5          59.3                7.8 +/-    0.69       8.9 +/-    0.69  0.040 / 0.060
G21     139.7          52.5               11.0 +/-    0.98      13.4 +/-    0.98  0.040 / 0.040
G24     65.4           28.2                6.7 +/-    0.47      12.1 +/-    0.47  0.030 / 0.030
G27     267.5          36.1               10.4 +/-    2.58      16.2 +/-    2.58  0.070 / 0.090
G32     229.6          60.1               10.7 +/-    0.71      12.2 +/-    0.71  0.080 / 0.080