PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/17-22:28:10
G08     292.8          22.2                8.4 +/-    0.94      17.6 +/-    0.94  0.050 / 0.090
G10     18.7           62.5               12.5 +/-    0.54      13.9 +/-    0.54  0.050 / 0.090
G14     231.7          46.8               11.6 +/-    2.44      15.2 +/-    2.44  0.100 / 0.140
G18     318.0          13.0                7.3 +/-   10.07      18.9 +/-   10.07  0.090 / 0.130
G20     71.1           49.5                9.7 +/-    0.55      12.3 +/-    0.55  0.330 / 0.440
G21     148.6          38.0               11.6 +/-    1.07      17.4 +/-    1.07  0.110 / 0.310
G24     54.2           24.8                9.4 +/-    2.91      18.4 +/-    2.91  0.030 / 0.030
G27     251.1          30.4               11.9 +/-    1.81      20.7 +/-    1.81  0.030 / 0.030
G32     252.9          70.9               10.7 +/-    0.68      11.3 +/-    0.68  0.090 / 0.130