PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-20:57:50
G01     313.3          27.9                8.0 +/-    1.37      14.7 +/-    1.37  0.090 / 0.220
G10     97.1           45.0                9.8 +/-    1.13      13.2 +/-    1.13  0.080 / 0.240
G14     337.3          70.1                9.1 +/-    0.47       9.6 +/-    0.47  0.040 / 0.040
G20     115.1          20.0                8.4 +/-    1.68      18.5 +/-    1.68  0.040 / 0.040
G22     306.5          18.8                7.3 +/-    1.05      16.7 +/-    1.05  0.090 / 0.110
G25     85.3           13.2                8.3 +/-    3.82      21.5 +/-    3.82  0.070 / 0.120
G31     174.5          54.2               11.6 +/-    0.74      14.0 +/-    0.74  0.100 / 0.160
G32     26.6           58.5                8.9 +/-    0.89      10.3 +/-    0.89  0.070 / 0.150