PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/24-10:58:00
G01     316.1          23.6                4.9 +/-    1.99       9.8 +/-    1.99  0.040 / 0.050
G10     90.2           49.2                6.0 +/-    0.46       7.6 +/-    0.46  0.040 / 0.060
G11     297.8          24.9                5.4 +/-    2.47      10.6 +/-    2.47  0.110 / 0.400
G14     308.5          69.8                4.8 +/-    0.66       5.1 +/-    0.66  0.120 / 0.420
G18     297.8          44.2                5.8 +/-    1.46       8.0 +/-    1.46  0.100 / 0.240
G22     305.6          20.5                4.0 +/-    2.28       8.7 +/-    2.28  0.110 / 0.250
G25     95.7           11.7                3.5 +/-    1.65       9.3 +/-    1.65  0.040 / 0.040
G31     171.8          51.9                8.1 +/-    1.06      10.0 +/-    1.06  0.040 / 0.050
G32     22.4           61.0                5.0 +/-    0.37       5.6 +/-    0.37  0.110 / 0.170