PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/16-21:12:30
G10     306.4          55.2               10.5 +/-    1.00      12.5 +/-    1.00  0.040 / 0.030
G14     211.4          13.5               18.9 +/-    3.35      48.6 +/-    3.35  0.040 / 0.040
G15     45.7           24.3                9.1 +/-    2.07      18.1 +/-    2.07  0.160 / 0.820
G20     6.1            64.6               11.1 +/-    0.48      12.2 +/-    0.48  0.150 / 0.530
G21     107.8          71.8               11.2 +/-    0.58      11.7 +/-    0.58  0.070 / 0.230
G24     94.3           28.3               11.0 +/-    1.09      19.9 +/-    1.09  0.130 / 0.160
G27     295.9          36.1               11.6 +/-    2.95      18.0 +/-    2.95  0.050 / 0.040
G32     212.0          36.8               15.2 +/-    1.71      23.4 +/-    1.71  0.040 / 0.050