PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/13-22:57:40
G08     309.2          19.5                9.3 +/-    1.99      20.6 +/-    1.99  0.080 / 0.080
G10     331.3          59.9                5.9 +/-    0.53       6.7 +/-    0.53  0.080 / 0.090
G14     217.8          29.4               13.1 +/-    1.46      23.3 +/-    1.46  0.030 / 0.050
G15     46.7           16.0                7.0 +/-    1.67      16.9 +/-    1.67  0.040 / 0.050
G20     36.4           60.7                9.4 +/-    0.72      10.6 +/-    0.72  0.060 / 0.100
G21     133.7          57.7               10.5 +/-    1.07      12.2 +/-    1.07  0.060 / 0.110
G24     72.1           29.0                8.3 +/-    0.92      14.8 +/-    0.92  0.090 / 0.190
G27     276.9          37.2               11.8 +/-    1.06      18.0 +/-    1.06  0.080 / 0.220
G32     222.6          53.0               10.6 +/-    1.23      13.0 +/-    1.23  0.040 / 0.030