PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/31-02:12:50
G08     272.0          20.6                9.5 +/-    1.10      20.5 +/-    1.10  0.080 / 0.210
G10     46.6           61.3                7.8 +/-    0.64       8.7 +/-    0.64  0.110 / 0.200
G11     314.3          14.6                8.1 +/-    1.35      20.4 +/-    1.35  0.100 / 0.220
G14     255.6          63.6                9.5 +/-    0.92      10.5 +/-    0.92  0.090 / 0.250
G18     84.7           41.1                8.2 +/-    0.73      11.8 +/-    0.73  0.030 / 0.030
G21     152.7          20.9                8.9 +/-    2.25      19.1 +/-    2.25  0.020 / 0.020
G24     43.4           16.1                6.7 +/-    1.20      16.2 +/-    1.20  0.030 / 0.030
G27     235.4          19.8               13.1 +/-    1.52      29.0 +/-    1.52  0.030 / 0.030
G31     180.5          22.7               10.2 +/-    2.72      21.1 +/-    2.72  0.080 / 0.160
G32     303.6          75.3                8.9 +/-    0.54       9.2 +/-    0.54  0.090 / 0.190