PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/15-01:28:00
G08     319.0          12.7                5.4 +/-    2.93      14.1 +/-    2.93  0.080 / 0.090
G10     305.3          53.9                6.9 +/-    0.66       8.3 +/-    0.66  0.100 / 0.140
G14     211.8          19.0               11.9 +/-    2.49      26.8 +/-    2.49  0.080 / 0.110
G15     45.7           24.7                8.5 +/-    2.58      16.7 +/-    2.58  0.080 / 0.140
G18     8.8            65.0                6.7 +/-    0.80       7.3 +/-    0.80  0.040 / 0.030
G20     76.1           13.2                7.2 +/-    1.76      18.7 +/-    1.76  0.030 / 0.040
G21     112.5          69.7               10.2 +/-    1.15      10.8 +/-    1.15  0.030 / 0.030
G24     92.5           28.6                9.1 +/-    2.04      16.3 +/-    2.04  0.040 / 0.040
G27     291.7          37.1                7.9 +/-    3.58      12.1 +/-    3.58  0.230 / 0.370
G32     213.9          36.6                9.1 +/-    1.64      14.0 +/-    1.64  0.230 / 0.320