PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-07:57:50
G08     273.0          20.2                5.8 +/-    1.51      12.6 +/-    1.51  0.030 / 0.040
G10     52.6           59.4                2.0 +/-    0.88       2.3 +/-    0.88  0.030 / 0.030
G14     255.6          63.5                3.8 +/-    0.85       4.2 +/-    0.85  0.110 / 0.250
G18     314.5          28.8                5.2 +/-    2.84       9.3 +/-    2.84  0.100 / 0.390
G20     90.1           40.0                4.8 +/-    0.77       6.9 +/-    0.77  0.100 / 0.140
G21     153.7          19.8                4.8 +/-    2.44      10.6 +/-    2.44  0.130 / 0.180
G24     41.8           13.1                0.5 +/-    1.30       1.3 +/-    1.30  0.050 / 0.060
G27     237.2          20.1                7.2 +/-    1.41      15.9 +/-    1.41  0.050 / 0.050
G31     179.4          24.8                6.1 +/-    1.21      12.0 +/-    1.21  0.110 / 0.170
G32     300.6          74.9                4.7 +/-    0.92       4.9 +/-    0.92  0.090 / 0.170