PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-19:58:00
G01     311.6          31.1                9.0 +/-    0.91      15.4 +/-    0.91  0.130 / 0.180
G10     98.8           42.7                9.0 +/-    1.35      12.5 +/-    1.35  0.110 / 0.150
G11     292.7          25.1                8.9 +/-    1.32      17.4 +/-    1.32  0.040 / 0.050
G14     323.7          69.7                8.3 +/-    0.87       8.8 +/-    0.87  0.040 / 0.040
G20     116.8          16.6               10.1 +/-    1.39      24.2 +/-    1.39  0.170 / 0.350
G22     307.2          19.0                7.5 +/-    2.04      16.9 +/-    2.04  0.190 / 0.350
G25     89.4           13.8                9.8 +/-    2.31      25.2 +/-    2.31  0.040 / 0.040
G31     170.7          57.1                9.3 +/-    0.62      10.8 +/-    0.62  0.030 / 0.040
G32     30.1           56.4                8.2 +/-    1.05       9.6 +/-    1.05  0.050 / 0.060