PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-22:12:40
G10     259.1          33.3                9.8 +/-    1.02      16.0 +/-    1.02  0.130 / 0.290
G13     46.1           23.8                8.5 +/-    1.55      17.1 +/-    1.55  0.130 / 0.260
G15     74.1           56.9               10.2 +/-    0.43      11.9 +/-    0.43  0.040 / 0.050
G16     284.6          14.7                7.3 +/-    1.53      18.3 +/-    1.53  0.040 / 0.050
G20     260.0          21.4                5.9 +/-    1.28      12.4 +/-    1.28  0.130 / 0.360
G21     344.8          66.0                7.5 +/-    0.96       8.2 +/-    0.96  0.180 / 0.330
G24     124.9          9.9               -17.2 +/-   18.67     -48.0 +/-   18.67  0.060 / 0.230
G26     257.7          11.5               12.0 +/-    2.73      32.4 +/-    2.73  0.070 / 0.270
G27     321.5          12.3                6.4 +/-    3.59      17.0 +/-    3.59  0.160 / 0.340
G29     167.3          40.8               11.8 +/-    1.35      17.0 +/-    1.35  0.040 / 0.050