PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/01-05:27:50
G08     273.2          19.9                9.1 +/-    2.05      20.0 +/-    2.05  0.040 / 0.050
G10     51.0           60.3                5.3 +/-    0.75       6.0 +/-    0.75  0.040 / 0.050
G14     253.4          59.9                6.7 +/-    0.93       7.6 +/-    0.93  0.360 / 0.400
G18     314.9          26.9                6.9 +/-    1.41      12.9 +/-    1.41  0.520 / 0.310
G20     86.4           45.2                6.4 +/-    1.11       8.7 +/-    1.11  0.130 / 0.200
G21     153.9          21.2                5.1 +/-    2.62      10.9 +/-    2.62  0.130 / 0.200
G24     41.6           13.0                3.4 +/-    3.07       8.8 +/-    3.07  0.140 / 0.230
G27     235.8          19.4                8.2 +/-    4.83      18.2 +/-    4.83  0.140 / 0.270
G31     177.8          26.8                6.2 +/-    1.37      11.6 +/-    1.37  0.110 / 0.160
G32     326.5          76.1                7.2 +/-    0.44       7.4 +/-    0.44  0.120 / 0.160