PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/17-02:27:40
G08     320.5          11.2               -6.6 +/-   33.53     -17.9 +/-   33.53  0.050 / 0.070
G10     305.9          54.4               11.0 +/-    1.23      13.2 +/-    1.23  0.070 / 0.060
G14     212.2          14.7               21.2 +/-    2.21      53.1 +/-    2.21  0.030 / 0.030
G15     45.8           25.3                8.0 +/-    2.53      15.5 +/-    2.53  0.030 / 0.030
G20     329.3          62.4               11.4 +/-    0.67      12.7 +/-    0.67  0.140 / 0.460
G21     110.6          71.2               12.1 +/-    0.80      12.7 +/-    0.80  0.140 / 0.530
G24     90.1           28.1               10.3 +/-    1.35      18.8 +/-    1.35  0.080 / 0.120
G27     294.1          36.2               11.6 +/-    2.44      17.9 +/-    2.44  0.090 / 0.120
G32     212.9          39.4               16.0 +/-    1.48      23.5 +/-    1.48  0.210 / 0.350