PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/27-19:12:50
G10     297.3          51.9                8.8 +/-    1.35      10.8 +/-    1.35  0.070 / 0.110
G14     210.0          11.4                4.0 +/-   27.30      10.7 +/-   27.30  0.060 / 0.100
G15     46.7           31.5                7.4 +/-    0.58      12.6 +/-    0.58  0.040 / 0.040
G20     351.8          65.4                6.0 +/-    1.40       6.6 +/-    1.40  0.030 / 0.040
G21     97.5           73.2                9.2 +/-    0.86       9.5 +/-    0.86  0.280 / 0.440
G24     94.1           26.0               10.9 +/-    0.55      20.9 +/-    0.55  0.110 / 0.340
G27     302.3          33.0                9.7 +/-    1.54      16.0 +/-    1.54  0.090 / 0.130
G32     210.3          32.0                8.7 +/-    1.54      14.6 +/-    1.54  0.100 / 0.160