PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/15-02:27:50
G08     269.3          19.6                7.1 +/-    1.84      15.8 +/-    1.84  0.150 / 0.320
G10     54.9           59.5                6.3 +/-    1.05       7.2 +/-    1.05  0.140 / 0.380
G14     258.2          62.9                7.7 +/-    0.63       8.5 +/-    0.63  0.100 / 0.370
G18     314.0          29.0                7.9 +/-    2.29      14.2 +/-    2.29  0.100 / 0.350
G20     56.4           65.6               11.4 +/-    0.63      12.4 +/-    0.63  0.050 / 0.070
G21     154.4          19.7                9.2 +/-    3.13      20.3 +/-    3.13  0.040 / 0.060
G24     40.4           11.1                5.3 +/-    1.87      14.5 +/-    1.87  0.170 / 0.200
G27     234.6          18.3               10.4 +/-    1.55      24.0 +/-    1.55  0.140 / 0.250
G31     177.4          28.6                9.1 +/-    1.17      16.4 +/-    1.17  0.140 / 0.320
G32     334.0          75.4                7.8 +/-    0.61       8.0 +/-    0.61  0.170 / 0.410