PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/13-17:42:40
G10     284.5          47.3                9.0 +/-    2.58      11.8 +/-    2.58  0.040 / 0.030
G15     49.5           39.0                7.5 +/-    1.16      11.1 +/-    1.16  0.040 / 0.030
G20     329.5          64.9                9.1 +/-    0.70      10.0 +/-    0.70  0.080 / 0.160
G21     64.4           76.4               10.9 +/-    1.06      11.1 +/-    1.06  0.070 / 0.120
G24     103.2          22.3                9.1 +/-    1.35      19.0 +/-    1.35  0.060 / 0.070
G27     310.9          27.7                7.4 +/-    1.38      13.6 +/-    1.38  0.050 / 0.050
G29     168.1          15.9                8.5 +/-    1.12      20.7 +/-    1.12  0.080 / 0.120
G32     207.2          22.7               10.1 +/-    1.16      20.8 +/-    1.16  0.080 / 0.090