PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-06:57:50
G08     301.1          21.9                6.5 +/-    1.71      13.7 +/-    1.71  0.100 / 0.090
G10     354.4          62.3                6.9 +/-    0.92       7.7 +/-    0.92  0.070 / 0.120
G14     223.6          40.4                9.3 +/-    1.89      13.5 +/-    1.89  0.040 / 0.060
G20     54.7           55.9                7.5 +/-    1.31       8.9 +/-    1.31  0.040 / 0.070
G21     142.3          46.7                8.1 +/-    0.58      10.6 +/-    0.58  0.030 / 0.030
G24     62.6           27.8                3.5 +/-    2.11       6.5 +/-    2.11  0.040 / 0.030
G27     264.3          35.0                8.8 +/-    1.61      13.9 +/-    1.61  0.130 / 0.110
G32     232.3          57.4                9.0 +/-    2.36      10.4 +/-    2.36  0.110 / 0.120