PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/09-19:27:40
G01     313.3          28.0                9.9 +/-    1.58      18.1 +/-    1.58  0.030 / 0.040
G10     97.2           44.8               12.3 +/-    1.04      16.6 +/-    1.04  0.030 / 0.050
G11     289.2          27.8                8.7 +/-    1.33      16.0 +/-    1.33  0.080 / 0.190
G14     338.2          70.1               10.5 +/-    0.55      11.1 +/-    0.55  0.070 / 0.160
G20     115.2          19.9               11.6 +/-    1.73      25.5 +/-    1.73  0.070 / 0.080
G22     306.7          19.1                9.5 +/-    1.53      21.3 +/-    1.53  0.070 / 0.110
G25     84.2           13.1               12.1 +/-    4.47      31.5 +/-    4.47  0.110 / 0.140
G31     176.0          53.1               13.1 +/-    0.94      15.9 +/-    0.94  0.090 / 0.150
G32     25.8           58.9               10.7 +/-    0.81      12.3 +/-    0.81  0.040 / 0.040