PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/29-17:57:50
G10     260.6          34.5                8.8 +/-    1.62      14.1 +/-    1.62  0.140 / 0.220
G13     45.2           22.6                6.7 +/-    1.46      13.7 +/-    1.46  0.110 / 0.190
G15     70.6           55.6                7.5 +/-    0.40       8.9 +/-    0.40  0.040 / 0.050
G16     285.2          13.9                7.8 +/-    1.71      20.0 +/-    1.71  0.040 / 0.050
G20     286.3          57.3                9.4 +/-    0.97      10.9 +/-    0.97  0.110 / 0.350
G21     352.8          68.4                8.7 +/-    0.74       9.3 +/-    0.74  0.180 / 0.320
G24     122.2          11.0                5.3 +/-   26.91      14.6 +/-   26.91  0.070 / 0.270
G26     259.0          10.8                8.7 +/-    2.30      23.8 +/-    2.30  0.070 / 0.230
G27     321.6          12.4                8.3 +/-    3.58      22.0 +/-    3.58  0.150 / 0.340
G29     166.6          37.7               10.2 +/-    1.98      15.4 +/-    1.98  0.090 / 0.320