PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-13:43:00
G01     105.0          26.3                7.3 +/-    1.02      13.9 +/-    1.02  0.110 / 0.370
G07     110.9          53.7                6.8 +/-    0.28       8.2 +/-    0.28  0.100 / 0.300
G08     41.7           17.0                6.8 +/-    1.68      16.1 +/-    1.68  0.020 / 0.030
G09     173.0          10.3                5.7 +/-    3.80      15.9 +/-    3.80  0.020 / 0.030
G11     83.9           40.6                6.1 +/-    0.62       8.8 +/-    0.62  0.090 / 0.150
G13     309.7          28.0                4.4 +/-    1.20       8.0 +/-    1.20  0.090 / 0.120
G17     205.9          42.2                7.4 +/-    0.71      10.4 +/-    0.71  0.020 / 0.030
G19     209.3          16.2                7.9 +/-    3.68      19.1 +/-    3.68  0.030 / 0.030
G28     321.7          61.1                5.1 +/-    0.58       5.7 +/-    0.58  0.070 / 0.110
G30     20.2           78.0                6.8 +/-    0.98       6.9 +/-    0.98  0.070 / 0.120