PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-21:12:30
G08     306.1          20.0                7.9 +/-    1.00      17.3 +/-    1.00  0.040 / 0.050
G10     348.2          61.9               11.0 +/-    0.74      12.3 +/-    0.74  0.040 / 0.060
G14     221.1          33.6               11.5 +/-    1.83      18.7 +/-    1.83  0.150 / 0.150
G20     50.8           56.7               12.1 +/-    0.81      14.2 +/-    0.81  0.110 / 0.150
G21     140.0          51.9               13.9 +/-    0.64      17.1 +/-    0.64  0.110 / 0.270
G24     68.5           29.9               12.0 +/-    1.10      21.1 +/-    1.10  0.130 / 0.250
G27     267.2          36.5               11.6 +/-    1.54      17.9 +/-    1.54  0.100 / 0.070
G32     228.7          59.0               10.9 +/-    1.62      12.5 +/-    1.62  0.080 / 0.070