PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/01-03:12:40
G01     313.4          27.2                6.4 +/-    2.55      11.9 +/-    2.55  0.040 / 0.030
G10     95.4           47.1                9.4 +/-    0.46      12.3 +/-    0.46  0.040 / 0.030
G11     289.8          28.6                5.7 +/-    1.17      10.3 +/-    1.17  0.030 / 0.030
G14     339.2          70.1                7.5 +/-    0.49       7.9 +/-    0.49  0.040 / 0.020
G18     110.8          21.6                8.0 +/-    2.11      17.0 +/-    2.11  0.100 / 0.130
G22     305.9          18.8                6.5 +/-    1.35      14.7 +/-    1.35  0.100 / 0.170
G25     87.1           13.3                7.3 +/-    2.54      18.8 +/-    2.54  0.110 / 0.270
G31     174.2          53.9               12.5 +/-    0.93      15.1 +/-    0.93  0.080 / 0.240
G32     22.3           60.5                7.4 +/-    1.18       8.3 +/-    1.18  0.040 / 0.030