PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/17-02:12:40
G01     311.9          29.0                7.2 +/-    1.02      12.9 +/-    1.02  0.040 / 0.040
G10     98.5           45.5                9.3 +/-    0.83      12.5 +/-    0.83  0.030 / 0.050
G11     287.4          28.8                8.4 +/-    2.03      15.0 +/-    2.03  0.120 / 0.170
G14     345.6          69.2                8.9 +/-    0.56       9.5 +/-    0.56  0.130 / 0.230
G18     112.7          19.4                7.9 +/-    1.64      17.6 +/-    1.64  0.100 / 0.130
G22     306.9          20.3                7.7 +/-    1.76      16.8 +/-    1.76  0.100 / 0.110
G25     85.4           14.2                8.1 +/-    2.04      20.5 +/-    2.04  0.100 / 0.220
G31     174.2          56.1               10.9 +/-    0.62      12.9 +/-    0.62  0.090 / 0.190
G32     24.7           59.2                7.7 +/-    0.91       8.8 +/-    0.91  0.030 / 0.040