PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-20:12:50
G10     265.3          38.6               10.3 +/-    1.51      15.3 +/-    1.51  0.110 / 0.170
G13     42.4           18.6                8.8 +/-    1.35      20.0 +/-    1.35  0.100 / 0.130
G15     61.7           50.7               10.4 +/-    0.55      13.1 +/-    0.55  0.060 / 0.060
G16     280.4          13.2                9.6 +/-    1.43      24.8 +/-    1.43  0.050 / 0.050
G20     295.8          60.0                9.1 +/-    0.53      10.4 +/-    0.53  0.080 / 0.260
G21     356.8          69.9                9.8 +/-    0.59      10.4 +/-    0.59  0.080 / 0.210
G24     123.6          12.9                9.5 +/-    1.62      24.7 +/-    1.62  0.150 / 0.370
G27     319.8          17.0                8.4 +/-    0.97      20.0 +/-    0.97  0.140 / 0.380
G29     167.0          34.0               11.9 +/-    0.94      19.2 +/-    0.94  0.030 / 0.050