PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-23:12:40
G08     304.8          21.3                7.6 +/-    1.96      16.2 +/-    1.96  0.090 / 0.100
G10     341.1          61.2                8.0 +/-    0.44       8.9 +/-    0.44  0.120 / 0.090
G14     220.5          34.0               11.8 +/-    2.67      19.1 +/-    2.67  0.050 / 0.100
G15     47.6           12.1                6.0 +/-    0.94      15.9 +/-    0.94  0.050 / 0.110
G20     45.4           58.6                9.7 +/-    0.32      11.1 +/-    0.32  0.030 / 0.030
G21     138.3          53.0               10.9 +/-    0.81      13.3 +/-    0.81  0.030 / 0.030
G24     66.6           28.2                7.4 +/-    0.91      13.5 +/-    0.91  0.040 / 0.060
G27     270.5          36.4               12.0 +/-    1.48      18.6 +/-    1.48  0.040 / 0.060
G32     227.5          57.8               12.3 +/-    0.76      14.3 +/-    0.76  0.070 / 0.130