PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/14-15:57:40
G01     38.0           10.3                8.2 +/-    4.28      22.8 +/-    4.28  0.150 / 0.310
G02     200.7          12.6               14.2 +/-    3.63      37.3 +/-    3.63  0.100 / 0.310
G06     173.0          47.6               13.2 +/-    1.35      17.1 +/-    1.35  0.110 / 0.230
G13     233.3          17.1               12.3 +/-    1.60      29.1 +/-    1.60  0.070 / 0.320
G17     19.1           62.4               10.2 +/-    0.88      11.3 +/-    0.88  0.090 / 0.140
G19     310.1          72.2                9.8 +/-    0.39      10.2 +/-    0.39  0.090 / 0.130
G24     314.4          23.8                7.6 +/-    1.94      15.2 +/-    1.94  0.140 / 0.190
G28     81.7           42.7                9.6 +/-    0.62      13.3 +/-    0.62  0.110 / 0.190
G30     156.7          21.9               10.5 +/-    1.89      22.0 +/-    1.89  0.040 / 0.030