PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/07-19:12:30
G10     254.2          29.9               23.4 +/-    1.74      41.1 +/-    1.74  0.030 / 0.050
G13     49.9           27.2               20.2 +/-    0.97      37.6 +/-    0.97  0.040 / 0.050
G15     85.1           59.1               24.3 +/-    0.66      27.9 +/-    0.66  0.140 / 0.490
G16     291.4          15.2               20.3 +/-    1.57      50.1 +/-    1.57  0.140 / 0.510
G20     275.5          53.4               24.3 +/-    1.05      29.5 +/-    1.05  0.070 / 0.140
G21     340.2          63.4               23.0 +/-    0.58      25.4 +/-    0.58  0.070 / 0.180
G26     264.4          13.9               21.1 +/-    1.38      53.9 +/-    1.38  0.020 / 0.030
G29     165.6          45.6               27.0 +/-    1.07      36.1 +/-    1.07  0.030 / 0.040