PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/20-04:42:40
G08     289.2          22.5                7.7 +/-    1.15      16.0 +/-    1.15  0.050 / 0.110
G10     23.4           62.5                6.1 +/-    0.53       6.8 +/-    0.53  0.050 / 0.110
G14     234.9          51.6               11.2 +/-    1.09      13.8 +/-    1.09  0.090 / 0.130
G18     317.7          15.8                4.8 +/-    3.38      11.8 +/-    3.38  0.090 / 0.140
G20     73.2           49.0                5.9 +/-    0.60       7.5 +/-    0.60  0.030 / 0.030
G21     149.5          34.8                7.2 +/-    1.21      11.5 +/-    1.21  0.030 / 0.020
G24     51.2           22.6                5.8 +/-    0.86      12.1 +/-    0.86  0.050 / 0.070
G27     249.3          28.9                7.6 +/-    2.23      13.5 +/-    2.23  0.040 / 0.090
G31     182.0          12.1                4.6 +/-    4.21      12.3 +/-    4.21  0.120 / 0.180
G32     255.8          70.0                7.5 +/-    0.54       8.0 +/-    0.54  0.120 / 0.180