PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/07-02:58:00
G08     297.1          23.0                9.6 +/-    1.09      19.6 +/-    1.09  0.020 / 0.040
G10     353.2          62.4                9.4 +/-    0.76      10.4 +/-    0.76  0.060 / 0.030
G14     225.8          43.4               12.3 +/-    2.45      17.0 +/-    2.45  0.040 / 0.060
G18     54.3           55.1               10.2 +/-    0.94      12.1 +/-    0.94  0.040 / 0.050
G21     142.9          45.6               12.8 +/-    0.73      17.1 +/-    0.73  0.060 / 0.090
G24     62.7           28.6                9.2 +/-    1.23      16.6 +/-    1.23  0.050 / 0.090
G27     258.6          34.0               12.7 +/-    1.11      20.6 +/-    1.11  0.030 / 0.030
G32     236.4          61.9               12.3 +/-    1.68      13.7 +/-    1.68  0.020 / 0.020