PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/29-21:42:50
G10     250.2          26.6               14.6 +/-    2.70      27.4 +/-    2.70  0.040 / 0.050
G13     53.8           29.9               10.8 +/-    1.88      19.0 +/-    1.88  0.040 / 0.050
G15     94.3           59.5               11.3 +/-    0.94      12.9 +/-    0.94  0.130 / 0.360
G16     294.3          16.1                9.4 +/-    1.86      22.9 +/-    1.86  0.140 / 0.310
G20     252.3          13.9               12.6 +/-    2.35      32.1 +/-    2.35  0.100 / 0.140
G21     331.7          59.1               10.5 +/-    0.66      12.0 +/-    0.66  0.060 / 0.180
G26     266.6          15.9               12.8 +/-    1.37      31.1 +/-    1.37  0.020 / 0.040
G29     165.1          51.8               13.2 +/-    0.58      16.2 +/-    0.58  0.040 / 0.040