PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-21:58:10
G10     276.3          43.4               11.4 +/-    1.74      15.7 +/-    1.74  0.080 / 0.140
G13     38.8           11.7                8.9 +/-    3.42      23.8 +/-    3.42  0.070 / 0.120
G15     54.9           47.5               10.3 +/-    0.47      13.4 +/-    0.47  0.100 / 0.180
G20     314.4          63.4                9.8 +/-    0.81      10.8 +/-    0.81  0.090 / 0.190
G21     27.7           76.0               11.6 +/-    0.46      11.9 +/-    0.46  0.040 / 0.050
G24     111.0          19.0               12.7 +/-    1.19      28.7 +/-    1.19  0.040 / 0.040
G27     314.7          24.2                9.6 +/-    0.88      19.2 +/-    0.88  0.300 / 0.390
G29     168.7          23.4               14.1 +/-    1.53      28.6 +/-    1.53  0.320 / 0.490
G32     205.3          17.8               15.9 +/-    1.79      37.0 +/-    1.79  0.040 / 0.050