PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/31-16:57:40
G10     264.1          38.0               10.6 +/-    1.43      16.0 +/-    1.43  0.050 / 0.050
G13     43.0           19.4                8.0 +/-    1.96      17.8 +/-    1.96  0.050 / 0.060
G15     61.0           49.3                8.4 +/-    0.89      10.7 +/-    0.89  0.090 / 0.220
G20     295.6          60.4               10.4 +/-    0.98      11.8 +/-    0.98  0.100 / 0.320
G21     356.1          69.5                8.8 +/-    1.12       9.3 +/-    1.12  0.060 / 0.070
G24     124.9          12.2               11.2 +/-    3.10      29.8 +/-    3.10  0.090 / 0.070
G27     320.1          16.3                7.5 +/-    1.51      18.0 +/-    1.51  0.330 / 0.220
G29     167.0          35.7               10.9 +/-    1.11      17.1 +/-    1.11  0.250 / 0.280