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               13.4 +/-    0.92      21.3 +/-    0.92  0.040 / 0.050
G13     45.5           22.6                8.0 +/-    2.63      16.6 +/-    2.63  0.040 / 0.050
G15     68.7           53.8                9.7 +/-    1.27      11.8 +/-    1.27  0.120 / 0.270
G16     285.7          14.7                7.9 +/-    1.92      19.9 +/-    1.92  0.100 / 0.290
G20     286.2          57.5               11.0 +/-    1.70      12.8 +/-    1.70  0.040 / 0.040
G21     346.9          66.2               11.8 +/-    0.68      12.8 +/-    0.68  0.030 / 0.050
G24     128.1          9.7               -15.9 +/-   20.28     -44.7 +/-   20.28  0.120 / 0.370
G26     259.3          11.4               11.1 +/-    5.90      30.2 +/-    5.90  0.110 / 0.360
G27     321.5          12.5                6.2 +/-   12.15      16.2 +/-   12.15  0.120 / 0.290
G29     166.1          40.1               11.9 +/-    1.26      17.4 +/-    1.26  0.100 / 0.260