PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/27-15:58:00
G08     276.2          20.3                5.1 +/-    2.12      11.0 +/-    2.12  0.250 / 0.380
G10     46.1           61.2                6.2 +/-    1.16       7.0 +/-    1.16  0.220 / 0.310
G11     316.9          10.7               -4.5 +/-    9.61     -12.3 +/-    9.61  0.040 / 0.050
G14     252.0          60.5                7.8 +/-    0.69       8.8 +/-    0.69  0.040 / 0.050
G21     152.2          19.3                9.8 +/-    2.76      22.0 +/-    2.76  0.090 / 0.250
G24     43.4           15.9                5.9 +/-    2.52      14.4 +/-    2.52  0.100 / 0.190
G27     236.4          20.4                6.4 +/-    3.73      13.9 +/-    3.73  0.130 / 0.130
G31     179.8          23.0               10.0 +/-    1.14      20.4 +/-    1.14  0.100 / 0.160
G32     310.5          76.2                7.0 +/-    0.41       7.1 +/-    0.41  0.290 / 0.320