PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/17-00:12:50
G08     269.1          19.5                6.1 +/-    1.09      13.5 +/-    1.09  0.120 / 0.310
G10     55.4           59.4                7.4 +/-    1.06       8.5 +/-    1.06  0.150 / 0.400
G14     258.9          63.5                6.6 +/-    0.67       7.3 +/-    0.67  0.120 / 0.340
G18     313.7          29.9                9.2 +/-    1.70      16.1 +/-    1.70  0.100 / 0.310
G20     92.0           38.8                8.3 +/-    0.54      12.3 +/-    0.54  0.050 / 0.070
G21     154.2          18.5                9.8 +/-    2.07      22.5 +/-    2.07  0.050 / 0.070
G24     40.0           10.3                7.0 +/-    2.47      19.4 +/-    2.47  0.110 / 0.310
G27     235.2          18.3               10.0 +/-    2.43      23.0 +/-    2.43  0.100 / 0.220
G31     178.5          27.5               10.2 +/-    1.29      18.8 +/-    1.29  0.130 / 0.320
G32     331.4          75.4                8.1 +/-    0.59       8.3 +/-    0.59  0.080 / 0.150