PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-07:58:00
G08     273.0          20.2                6.6 +/-    2.68      14.5 +/-    2.68  0.140 / 0.390
G10     52.6           59.4                3.6 +/-    0.75       4.1 +/-    0.75  0.130 / 0.240
G14     255.6          63.5                4.8 +/-    0.75       5.3 +/-    0.75  0.200 / 0.280
G18     314.5          28.8                2.9 +/-    1.39       5.1 +/-    1.39  0.130 / 0.320
G20     90.1           40.0                3.4 +/-    0.89       4.9 +/-    0.89  0.030 / 0.030
G21     153.7          19.8                3.5 +/-    1.82       7.8 +/-    1.82  0.040 / 0.030
G24     41.8           13.1                1.3 +/-    4.11       3.3 +/-    4.11  0.060 / 0.050
G27     237.2          20.1                6.0 +/-    2.74      13.1 +/-    2.74  0.060 / 0.050
G31     179.4          24.8                5.1 +/-    0.84      10.0 +/-    0.84  0.250 / 0.200
G32     300.6          74.9                4.8 +/-    0.74       4.9 +/-    0.74  0.190 / 0.220