PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/14-18:57:50
G10     260.0          34.0               11.4 +/-    1.83      18.4 +/-    1.83  0.110 / 0.270
G13     45.6           23.1                8.4 +/-    1.54      17.2 +/-    1.54  0.130 / 0.220
G15     72.6           56.5               10.4 +/-    0.78      12.2 +/-    0.78  0.060 / 0.060
G16     285.5          14.1                9.6 +/-    2.93      24.3 +/-    2.93  0.070 / 0.040
G20     285.2          56.9               11.7 +/-    1.05      13.6 +/-    1.05  0.120 / 0.340
G21     350.4          67.7                9.6 +/-    1.10      10.3 +/-    1.10  0.120 / 0.290
G24     123.1          10.6               -1.2 +/-   43.80      -3.4 +/-   43.80  0.080 / 0.270
G26     259.1          11.1               10.3 +/-    2.35      28.1 +/-    2.35  0.070 / 0.210
G27     321.7          12.1                9.2 +/-    4.33      24.6 +/-    4.33  0.160 / 0.390
G29     166.7          38.7               13.8 +/-    1.27      20.5 +/-    1.27  0.160 / 0.290