PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/07-21:42:40
G10     301.4          53.8                9.3 +/-    1.37      11.2 +/-    1.37  0.050 / 0.040
G14     210.6          11.0               -3.4 +/-   25.71      -9.2 +/-   25.71  0.050 / 0.050
G15     46.0           27.7                7.8 +/-    1.74      14.3 +/-    1.74  0.210 / 0.620
G20     358.1          65.1               10.1 +/-    0.49      11.1 +/-    0.49  0.350 / 0.520
G21     98.8           73.9               11.6 +/-    0.83      12.0 +/-    0.83  0.080 / 0.190
G24     97.6           27.2               11.4 +/-    1.17      21.2 +/-    1.17  0.080 / 0.180
G27     299.4          34.9                9.3 +/-    1.05      14.8 +/-    1.05  0.120 / 0.130
G32     210.7          33.5               12.5 +/-    1.08      20.3 +/-    1.08  0.110 / 0.110