PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/31-02:13:10
G10     295.0          50.5                8.1 +/-    2.28      10.2 +/-    2.28  0.080 / 0.100
G14     209.8          12.7                8.0 +/-   12.16      20.9 +/-   12.16  0.070 / 0.130
G15     46.7           31.5                6.9 +/-    2.78      11.7 +/-    2.78  0.070 / 0.100
G18     352.0          66.4                1.5 +/-   30.66       1.6 +/-   30.66  0.070 / 0.110
G20     71.3           17.3                8.5 +/-    1.35      19.9 +/-    1.35  0.040 / 0.030
G21     92.6           74.7               10.8 +/-    0.71      11.2 +/-    0.71  0.060 / 0.030
G24     100.1          26.1               10.5 +/-    1.42      20.0 +/-    1.42  0.090 / 0.070
G27     299.8          34.8                7.6 +/-    1.21      12.1 +/-    1.21  0.100 / 0.060
G32     210.6          30.3               12.6 +/-    1.62      22.0 +/-    1.62  0.090 / 0.100