PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-12:57:30
G08     320.8          10.5              -16.8 +/-   19.12     -46.3 +/-   19.12  0.050 / 0.080
G10     308.0          54.8                2.7 +/-    0.89       3.2 +/-    0.89  0.050 / 0.080
G14     212.7          17.2                2.9 +/-    1.38       6.8 +/-    1.38  0.080 / 0.190
G15     45.4           20.4                1.8 +/-    0.46       3.9 +/-    0.46  0.070 / 0.220
G20     74.7           18.1                2.3 +/-    1.56       5.2 +/-    1.56  0.030 / 0.040
G21     117.0          66.5                3.5 +/-    0.97       3.7 +/-    0.97  0.030 / 0.050
G24     90.3           28.9                3.3 +/-    0.68       5.9 +/-    0.68  0.100 / 0.250
G27     290.8          37.1                4.6 +/-    1.69       7.1 +/-    1.69  0.170 / 0.360
G32     214.2          39.9                5.1 +/-    1.70       7.4 +/-    1.70  0.070 / 0.110