PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/25-02:57:40
G08     317.8          13.8                5.9 +/-    1.76      15.1 +/-    1.76  0.030 / 0.050
G10     308.1          54.7                6.5 +/-    0.51       7.8 +/-    0.51  0.040 / 0.040
G14     212.5          20.8               10.3 +/-    2.04      22.2 +/-    2.04  0.050 / 0.090
G15     45.7           24.1                5.0 +/-    1.46      10.1 +/-    1.46  0.050 / 0.080
G18     11.2           64.7                5.6 +/-    0.59       6.1 +/-    0.59  0.060 / 0.120
G20     77.5           11.7                6.0 +/-    2.22      16.2 +/-    2.22  0.070 / 0.130
G21     115.9          68.6                9.1 +/-    0.90       9.7 +/-    0.90  0.030 / 0.060
G24     90.3           29.1                7.6 +/-    1.01      13.6 +/-    1.01  0.030 / 0.040
G27     289.4          37.5                7.2 +/-    1.35      10.9 +/-    1.35  0.100 / 0.270
G32     214.7          39.1                8.4 +/-    1.08      12.4 +/-    1.08  0.080 / 0.280