PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-19:28:00
G10     259.6          35.1               12.3 +/-    1.61      19.6 +/-    1.61  0.140 / 0.260
G13     45.5           22.6                7.3 +/-    1.22      15.1 +/-    1.22  0.110 / 0.200
G15     68.7           53.8               10.0 +/-    0.50      12.1 +/-    0.50  0.040 / 0.050
G16     285.7          14.7                8.4 +/-    1.74      21.0 +/-    1.74  0.050 / 0.050
G20     286.2          57.5               12.4 +/-    1.07      14.4 +/-    1.07  0.070 / 0.220
G21     346.9          66.2               10.5 +/-    0.46      11.4 +/-    0.46  0.080 / 0.270
G26     259.3          11.4               12.2 +/-    1.40      33.2 +/-    1.40  0.160 / 0.440
G27     321.5          12.5                8.0 +/-    3.26      21.2 +/-    3.26  0.140 / 0.440
G29     166.1          40.1               13.1 +/-    0.59      19.0 +/-    0.59  0.030 / 0.050