PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/20-19:58:10
G08     298.2          22.3                9.5 +/-    1.99      19.8 +/-    1.99  0.060 / 0.130
G10     4.1            62.6                8.8 +/-    0.46       9.8 +/-    0.46  0.050 / 0.110
G14     226.0          39.5               10.5 +/-    1.43      15.4 +/-    1.43  0.050 / 0.110
G20     62.7           52.5                8.9 +/-    0.65      10.8 +/-    0.65  0.050 / 0.120
G21     144.9          44.4               10.3 +/-    0.98      13.9 +/-    0.98  0.050 / 0.080
G24     60.8           27.9                7.4 +/-    0.56      13.6 +/-    0.56  0.050 / 0.080
G27     258.3          33.8               10.1 +/-    1.45      16.4 +/-    1.45  0.080 / 0.120
G32     239.1          66.1               12.6 +/-    1.07      13.7 +/-    1.07  0.050 / 0.110