PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/24-02:57:50
G08     319.0          12.7                6.1 +/-    0.89      15.9 +/-    0.89  0.050 / 0.050
G10     305.2          53.8                7.2 +/-    1.25       8.7 +/-    1.25  0.040 / 0.050
G14     211.8          19.1                8.4 +/-    3.24      19.0 +/-    3.24  0.060 / 0.090
G15     45.8           25.7                5.7 +/-    1.18      10.9 +/-    1.18  0.050 / 0.070
G18     7.2            65.2                6.8 +/-    0.77       7.4 +/-    0.77  0.110 / 0.590
G20     76.2           12.8                5.3 +/-    1.01      13.8 +/-    1.01  0.120 / 0.490
G21     111.9          70.1                7.2 +/-    0.65       7.6 +/-    0.65  0.070 / 0.120
G24     92.4           28.6                7.6 +/-    0.97      13.7 +/-    0.97  0.080 / 0.130
G27     291.7          37.1                8.2 +/-    1.71      12.6 +/-    1.71  0.110 / 0.300
G32     213.8          37.3                8.5 +/-    1.36      12.9 +/-    1.36  0.150 / 0.360