PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-02:58:00
G08     295.2          23.3                7.9 +/-    1.02      16.0 +/-    1.02  0.050 / 0.090
G10     357.2          62.7                8.2 +/-    0.48       9.1 +/-    0.48  0.050 / 0.100
G14     227.3          45.1                9.9 +/-    1.68      13.4 +/-    1.68  0.080 / 0.090
G18     57.0           54.1                7.6 +/-    0.94       9.2 +/-    0.94  0.080 / 0.110
G21     144.0          43.8               10.9 +/-    1.36      14.9 +/-    1.36  0.040 / 0.080
G24     60.8           28.0                6.9 +/-    0.66      12.6 +/-    0.66  0.040 / 0.070
G27     256.4          33.2               10.7 +/-    1.51      17.5 +/-    1.51  0.030 / 0.040
G32     239.2          63.5               10.9 +/-    0.89      12.0 +/-    0.89  0.030 / 0.030